21118537440

Names of 21118537440

• Cardinal: 21118537440 can be written as Twenty-one billion, one hundred eighteen million, five hundred thirty-seven thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.111853744 × 10¹⁰

Factors of 21118537440

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 64

Divisors of 21118537440

• Number of divisors d(n): 1728
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 20 21 22 23 24 26 28 30 32 33 35 36 39 40 42 44 45 46 48 49 52 55 56 60 63 65 66 69 70 72 77 78 80 84 88 90 91 92 96 98 99 104 105 110 112 115 117 120 126 130 132 138 140 143 144 147 154 156 160 161 165 168 169 176 180 182 184 195 196 198 207 208 210 220 224 230 231 234 240 245 252 253 260 264 273 276 280 286 288 294 299 308 312 315 322 330 336 338 343 345 352 360 364 368 385 390 392 396 414 416 420 429 440 441 455 460 462 468 480 483 490 495 504 506 507 520 528 539 546 552 560 572 585 588 598 616 624 630 637 644 660 672 676 686 690 693 715 720 728 735 736 759 770 780 784 792 805 819 828 840 845 858 880 882 897 910 920 924 936 966 980 990 1001 1008 1012 1014 1029 1035 1040 1056 1078 1092 1104 1120 1127 1144 1155 1170 1176 1183 1196 1232 1248 1260 1265 1274 1287 1288 1320 1352 1365 1372 1380 1386 1430 1440 1449 1456 1470 1495 1518 1521 1540 1560 1568 1584 1610 1617 1638 1656 1680 1690 1715 1716 1760 1764 1771 1794 1820 1840 1848 1859 1872 1911 1932 1960 1980 2002 2016 2024 2028 2058 2070 2080 2093 2145 2156 2184 2205 2208 2254 2277 2288 2310 2340 2352 2366 2392 2415 2464 2520 2530 2535 2548 2574 2576 2640 2691 2695 2704 2730 2744 2760 2772 2860 2898 2912 2940 2990 3003 3036 3042 3080 3087 3120 3168 3185 3220 3234 3276 3289 3312 3360 3380 3381 3430 3432 3465 3528 3542 3549 3588 3640 3680 3696 3718 3744 3773 3795 3822 3864 3887 3920 3960 4004 4048 4056 4095 4116 4140 4186 4290 4312 4368 4410 4459 4485 4508 4554 4576 4620 4680 4704 4732 4784 4830 4851 5005 5040 5060 5070 5096 5145 5148 5152 5280 5313 5382 5390 5408 5460 5488 5520 5544 5577 5635 5720 5733 5796 5880 5915 5980 6006 6072 6084 6160 6174 6240 6279 6370 6435 6440 6468 6552 6578 6624 6760 6762 6860 6864 6930 7007 7056 7084 7098 7176 7245 7280 7392 7436 7546 7590 7605 7644 7728 7774 7840 7889 7920 8008 8085 8096 8112 8190 8232 8280 8281 8372 8580 8624 8736 8820 8855 8918 8970 9009 9016 9108 9240 9295 9360 9464 9555 9568 9660 9702 9867 10010 10080 10120 10140 10143 10192 10290 10296 10465 10626 10647 10764 10780 10920 10976 11040 11088 11154 11270 11319 11385 11440 11466 11592 11661 11760 11830 11960 12012 12144 12168 12320 12348 12397 12558 12740 12870 12880 12936 13013 13104 13156 13377 13455 13520 13524 13720 13728 13860 14014 14112 14168 14196 14352 14490 14560 14651 14872 15015 15092 15180 15210 15288 15435 15456 15548 15778 15840 15939 16016 16170 16224 16380 16445 16464 16560 16562 16731 16744 16905 17160 17248 17640 17710 17745 17836 17940 18018 18032 18216 18480 18590 18720 18837 18865 18928 19110 19320 19404 19435 19734 20020 20240 20280 20286 20384 20580 20592 20930 21021 21252 21294 21528 21560 21840 22176 22295 22308 22540 22638 22770 22880 22932 23023 23184 23322 23520 23660 23667 23920 24024 24255 24288 24336 24696 24794 24843 25116 25480 25740 25760 25872 26026 26208 26312 26565 26754 26910 27040 27048 27209 27440 27720 27885 28028 28336 28392 28665 28704 28980 29302 29601 29744 30030 30184 30360 30420 30576 30870 31096 31395 31556 31878 32032 32340 32760 32890 32928 33120 33124 33462 33488 33810 33957 34320 34983 35035 35280 35420 35490 35672 35880 36036 36064 36432 36960 37180 37191 37674 37730 37856 38220 38640 38808 38870 39039 39445 39468 40040 40131 40480 40560 40572 41160 41184 41405 41860 42042 42504 42588 42757 43056 43120 43680 43953 44590 44616 45045 45080 45276 45540 45864 46046 46368 46644 47320 47334 47840 48048 48510 48672 49049 49335 49392 49588 49686 50232 50715 50960 51480 51744 52052 52624 53130 53235 53508 53820 54096 54418 54880 55440 55770 56056 56595 56672 56784 57330 57960 57967 58305 58604 59202 59488 60060 60368 60720 60840 61152 61740 61985 62192 62790 63063 63112 63756 64680 65065 65520 65780 66248 66885 66924 66976 67620 67914 68640 69069 69966 70070 70560 70840 70980 71001 71344 71760 72072 72864 73255 74360 74382 74529 75348 75460 76440 77280 77616 77740 78078 78890 78936 79695 80080 80262 81120 81144 81627 82320 82810 83655 83720 84084 85008 85176 85514 86112 86240 86779 87906 89180 89232 90090 90160 90552 91080 91091 91728 92092 93288 94185 94640 94668 96096 97020 98098 98670 98784 99176 99372 100464 101430 101920 102557 102960 104104 105105 105248 106260 106470 107016 107640 108192 108836 110880 111540 111573 112112 113190 113568 114660 115115 115920 115934 116610 117117 117208 118335 118404 120120 120736 121440 121680 123480 123970 124215 124384 125580 126126 126224 127512 128271 129360 130130 131040 131560 131859 132496 133770 133848 135240 135828 136045 138138 139932 140140 141680 141960 142002 142688 143520 144144 146510 147147 148005 148720 148764 149058 150696 150920 152880 155232 155480 156156 157780 157872 159390 160160 160524 161161 162288 163254 164640 165620 167310 167440 168168 169785 170016 170352 171028 173558 173901 174915 175812 178360 178464 180180 180320 181104 182160 182182 183456 184184 185955 186576 188370 189280 189336 190463 194040 195195 196196 197340 198352 198744 200655 200928 202860 205114 205920 207207 208208 210210 212520 212940 213785 214032 215280 217672 219765 223080 223146 224224 226380 229320 230230 231840 231868 233220 234234 234416 236670 236808 240240 243360 244881 245245 246960 247940 248430 251160 252252 252448 255024 256542 258720 260260 260337 263120 263718 264992 267540 267696 270480 271656 272090 273273 276276 279864 280280 283360 283920 284004 288288 289835 293020 294294 296010 297440 297528 298116 299299 301392 301840 305760 307671 310960 312312 315315 315560 315744 318780 321048 322322 324576 326508 331240 334620 334880 336336 339570 340704 342056 345345 347116 347802 349830 351624 355005 356720 360360 362208 364320 364364 368368 371910 372645 373152 376740 378672 380926 384813 388080 390390 392392 394680 396704 397488 401310 405720 408135 410228 414414 416416 420420 425040 425880 427570 428064 430560 433895 435344 439530 441441 446160 446292 452760 455455 458640 460460 463736 466440 468468 468832 473340 473616 480480 483483 489762 490490 493920 495880 496860 502320 504504 510048 512785 513084 520520 520674 521703 526240 527436 535080 535392 540960 543312 544180 546546 552552 557865 559728 560560 567840 568008 571389 579670 585585 586040 588588 592020 595056 596232 598598 602784 603680 615342 621920 624624 630630 631120 637560 637637 641355 642096 644644 653016 659295 662480 669240 672672 679140 684112 690690 694232 695604 699660 703248 710010 713440 720720 728728 735735 736736 743820 745290 753480 757344 761852 769626 776160 780780 781011 784784 789360 794976 802620 805805 811440 816270 819819 820456 828828 840840 850080 851760 855140 867790 869505 870688 879060 882882 892320 892584 897897 905520 910910 917280 920920 923013 927472 932880 936936 946680 947232 952315 966966 979524 980980 991760 993720 1004640 1009008 1025570 1026168 1036035 1041040 1041348 1043406 1054872 1070160 1086624 1088360 1093092 1105104 1115730 1119456 1121120 1128127 1136016 1142778 1159340 1171170 1172080 1177176 1184040 1190112 1192464 1197196 1224405 1230684 1249248 1261260 1262240 1275120 1275274 1282710 1284192 1289288 1301685 1306032 1318590 1324960 1333241 1338480 1358280 1366365 1368224 1381380 1388464 1391208 1399320 1406496 1420020 1441440 1450449 1457456 1471470 1487640 1490580 1496495 1506960 1523704 1538355 1539252 1561560 1562022 1569568 1578720 1605240 1611610 1622880 1632540 1639638 1640912 1657656 1681680 1703520 1710280 1714167 1735580 1739010 1758120 1765764 1785168 1795794 1811040 1821820 1841840 1846026 1854944 1865760 1873872 1893360 1904630 1912911 1924065 1933932 1959048 1961960 1983520 1987440 2018016 2051140 2052336 2072070 2082080 2082696 2086812 2095093 2109744 2140320 2176720 2186184 2207205 2210208 2231460 2256254 2272032 2285556 2318680 2342340 2344160 2354352 2368080 2384928 2394392 2417415 2448810 2461368 2522520 2550240 2550548 2565420 2578576 2603370 2608515 2612064 2637180 2666482 2676960 2693691 2716560 2732730 2762760 2776928 2782416 2798640 2840040 2856945 2900898 2914912 2942940 2975280 2981160 2992990 3013920 3047408 3076710 3078504 3123120 3124044 3188185 3210480 3223220 3265080 3279276 3281824 3315312 3363360 3384381 3420560 3428334 3471160 3478020 3516240 3531528 3570336 3591588 3643640 3683680 3692052 3747744 3786720 3809260 3825822 3848130 3867864 3905055 3918096 3923920 3974880 3999723 4099095 4102280 4104672 4144140 4165392 4173624 4190186 4219488 4353440 4372368 4414410 4462920 4489485 4512508 4571112 4615065 4637360 4684680 4708704 4736160 4788784 4834830 4897620 4922736 5045040 5101096 5130840 5157152 5206740 5217030 5274360 5332964 5387382 5433120 5465460 5525520 5564832 5597280 5640635 5680080 5713890 5738733 5801796 5885880 5950560 5962320 5985980 6094816 6153420 6157008 6246240 6248088 6285279 6376370 6420960 6446440 6530160 6558552 6630624 6666205 6768762 6841120 6856668 6942320 6956040 7032480 7063056 7183176 7252245 7287280 7384104 7618520 7651644 7696260 7735728 7810110 7836192 7847840 7999446 8198190 8204560 8288280 8330784 8347248 8380372 8570835 8744736 8828820 8925840 8978970 9025016 9142224 9230130 9274720 9369360 9564555 9577568 9669660 9795240 9845472 10090080 10153143 10202192 10261680 10413480 10434060 10475465 10548720 10665928 10774764 10930920 11051040 11281270 11360160 11427780 11477466 11603592 11771760 11924640 11971960 11999169 12306840 12314016 12496176 12570558 12752740 12892880 13060320 13117104 13332410 13468455 13537524 13713336 13884640 13912080 14126112 14366352 14504490 14574560 14665651 14768208 15237040 15303288 15392520 15471456 15620220 15998892 16396380 16409120 16576560 16694496 16760744 16921905 17141670 17657640 17851680 17957940 18050032 18284448 18460260 18738720 18855837 19129110 19339320 19590480 19998615 20306286 20404384 20523360 20826960 20868120 20950930 21097440 21331856 21549528 21861840 22562540 22855560 22954932 23207184 23543520 23943920 23998338 24613680 24992352 25141116 25505480 25785760 26234208 26664820 26936910 27075048 27426672 27824160 28693665 28732704 29008980 29331302 29536416 30474080 30606576 30785040 31240440 31426395 31997784 32792760 33153120 33521488 33843810 34283340 35315280 35915880 36100064 36920520 37711674 38258220 38678640 39180960 39997230 40612572 41653920 41736240 41901860 42663712 43099056 43723680 43996953 45125080 45711120 45909864 46414368 47887840 47996676 49227360 50282232 50765715 51010960 53329640 53873820 54150096 54853344 57387330 58017960 58662604 59995845 61213152 61570080 62480880 62852790 63995568 65585520 67042976 67687620 68566680 70630560 71831760 73328255 73841040 75423348 76516440 77357280 79994460 81225144 83472480 83803720 86198112 87993906 90250160 91422240 91819728 94279185 95993352 100564464 101531430 102021920 106659280 107747640 108300192 114774660 116035920 117325208 119991690 124961760 125705580 127991136 131171040 131990859 135375240 137133360 143663520 146656510 147682080 150846696 153032880 159988920 162450288 167607440 175987812 180500320 183639456 188558370 191986704 201128928 203062860 213318560 215495280 219984765 229549320 232071840 234650416 239983380 251411160 263981718 270750480 274266720 293313020 301693392 306065760 319977840 324900576 335214880 351975624 377116740 383973408 406125720 430990560 439969530 459098640 469300832 479966760 502822320 527963436 541500960 586626040 603386784 639955680 659954295 703951248 754233480 812251440 879939060 918197280 959933520 1005644640 1055926872 1173252080 1319908590 1407902496 1508466960 1624502880 1759878120 1919867040 2111853744 2346504160 2639817180 3016933920 3519756240 4223707488 5279634360 7039512480 10559268720 21118537440
• Sum of all divisors σ(n): 103594982400
• Sum of proper divisors (its aliquot sum) s(n): 82476444960
• 21118537440 is an abundant number, because the sum of its proper divisors (82476444960) is greater than itself. Its abundance is 61357907520

Bases of 21118537440

• Binary: 10011101010110000110100111011100000₂
• Hexadecimal: 0x4EAC34EE0
• Base-36: 9P9FJS0

Squares and roots of 21118537440

• 21118537440 squared (21118537440²) is 445992623604681753600
• 21118537440 cubed (21118537440³) is 9418711919559299372686454784000
• The square root of 21118537440 is 145322.1849546723
• The cube root of 21118537440 is 2764.1054842903

Scales and comparisons

• 21,118,537,440 seconds is equal to 671 years, 26 weeks, 1 day, 12 hours, 24 minutes.
• To count from 1 to 21,118,537,440 would take you about one thousand, three hundred forty-three years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21118537440 cubic inches would be around 230.3 feet tall.

Recreational maths with 21118537440

• 21118537440 backwards is 04473581112
• 21118537440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21118537440's digits is 36
• More coming soon!