21709953720

Names of 21709953720

• Cardinal: 21709953720 can be written as Twenty-one billion, seven hundred nine million, nine hundred fifty-three thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.170995372 × 10¹⁰

Factors of 21709953720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 254

Divisors of 21709953720

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 18 20 21 24 26 27 28 30 35 36 39 40 42 45 49 52 54 56 60 63 65 67 70 72 78 81 84 90 91 98 104 105 108 117 120 126 130 134 135 140 147 156 157 162 168 180 182 189 195 196 201 210 216 234 245 252 260 268 270 273 280 294 312 314 315 324 335 351 360 364 378 390 392 402 405 420 441 455 468 469 471 490 504 520 536 540 546 567 585 588 603 628 630 637 648 670 702 728 735 756 780 785 804 810 819 840 871 882 910 936 938 942 945 980 1005 1053 1080 1092 1099 1134 1170 1176 1206 1256 1260 1274 1323 1340 1365 1404 1407 1413 1470 1512 1560 1570 1608 1620 1638 1742 1755 1764 1809 1820 1876 1884 1890 1911 1960 2010 2041 2106 2184 2198 2205 2268 2340 2345 2355 2412 2457 2520 2548 2613 2646 2680 2730 2808 2814 2826 2835 2940 3015 3140 3185 3240 3276 3283 3297 3484 3510 3528 3618 3640 3752 3768 3780 3822 3969 4020 4082 4095 4212 4221 4239 4355 4396 4410 4536 4680 4690 4710 4824 4914 5096 5226 5265 5292 5427 5460 5495 5628 5652 5670 5733 5880 6030 6097 6123 6280 6370 6552 6566 6594 6615 6968 7020 7035 7065 7236 7371 7560 7644 7693 7839 7938 8040 8164 8190 8424 8442 8478 8710 8792 8820 9045 9380 9420 9555 9828 9849 9891 10205 10452 10519 10530 10584 10854 10920 10990 11256 11304 11340 11466 12060 12194 12246 12285 12663 12717 12740 13065 13132 13188 13230 14040 14070 14130 14287 14472 14742 15288 15386 15678 15876 16328 16380 16415 16485 16884 16956 17199 17420 17640 18090 18291 18369 18760 18840 19110 19656 19698 19782 19845 20410 20904 21038 21060 21105 21195 21708 21980 22680 22932 23079 23517 24120 24388 24492 24570 25326 25434 25480 26130 26264 26376 26460 27135 28140 28260 28574 28665 29484 29547 29673 30485 30615 30772 31356 31557 31752 32760 32830 32970 33768 33912 34398 34840 36180 36582 36738 36855 37989 38220 38465 39195 39396 39564 39690 40820 42076 42120 42210 42390 42679 42861 43416 43960 45864 46158 47034 48776 48984 49140 49245 49455 50652 50868 51597 52260 52595 52920 54270 54873 55107 56280 56520 57148 57330 58968 59094 59346 60970 61230 61544 62712 63114 63315 63585 65660 65940 68796 69237 70551 71435 72360 73164 73476 73633 73710 75978 76440 76930 78390 78792 79128 79380 81640 84152 84420 84780 85358 85722 85995 88641 89019 91455 91845 92316 94068 94671 98280 98490 98910 100009 101304 101736 103194 104520 105190 108540 109746 110214 114296 114660 115395 117585 118188 118692 121940 122460 126228 126630 127170 128037 128583 131320 131880 136747 137592 138474 141102 142870 146328 146952 147266 147420 147735 148365 151956 153860 156780 157785 158760 164619 165321 168840 169560 170716 171444 171990 177282 178038 182910 183690 184632 188136 189342 189945 196980 197820 200018 206388 207711 210380 213395 214305 217080 219492 220428 220899 229320 230790 235170 236376 237384 243880 244920 252456 253260 254340 256074 257166 257985 265923 273494 274365 275535 276948 282204 284013 285740 294532 294840 295470 296730 300027 303912 307720 313560 315570 329238 330642 341432 342888 343980 346185 352755 354564 356076 365820 367380 368165 378684 379890 384111 385749 393960 395640 400036 410241 412776 415422 420760 426790 428610 438984 440856 441798 443205 445095 461580 470340 473355 493857 500045 506520 508680 512148 514332 515431 515970 531846 546988 548730 551070 553896 564408 568026 571480 589064 590940 593460 600054 623133 631140 640185 642915 658476 661284 662697 683735 687960 692370 705510 709128 712152 731640 734760 736330 757368 759780 768222 771498 800072 820482 823095 826605 830844 852039 853580 857220 883596 886410 890190 900081 923160 940680 946710 957229 987714 1000090 1024296 1028664 1030862 1031940 1038555 1063692 1093976 1097460 1102140 1104495 1136052 1152333 1157247 1181880 1186920 1200108 1230723 1246266 1262280 1280370 1285830 1316952 1322568 1325394 1329615 1367470 1384740 1411020 1420065 1472660 1500135 1519560 1536444 1542996 1546293 1640964 1646190 1653210 1661688 1704078 1707160 1714440 1767192 1772820 1780380 1800162 1893420 1914458 1920555 1928745 1975428 1988091 2000180 2051205 2061724 2063880 2077110 2127384 2194920 2204280 2208990 2272104 2304666 2314494 2400216 2461446 2469285 2492532 2560740 2571660 2577155 2650788 2659230 2700243 2734940 2769480 2822040 2840130 2871687 2945320 3000270 3072888 3085992 3092586 3115665 3281928 3292380 3306420 3313485 3408156 3456999 3545640 3560760 3600324 3692169 3786840 3828916 3841110 3857490 3950856 3976182 4000360 4102410 4123448 4154220 4260195 4417980 4500405 4609332 4628988 4638879 4786145 4922892 4938570 4985064 5121480 5143320 5154310 5301576 5318460 5400486 5469880 5680260 5743374 5761665 5786235 5964273 6000540 6153615 6185172 6231330 6584760 6612840 6626970 6700603 6816312 6913998 7200648 7384338 7657832 7682220 7714980 7731465 7952364 8100729 8204820 8308440 8520390 8615061 8835960 9000810 9218664 9257976 9277758 9572290 9845784 9877140 9940455 10308620 10636920 10800972 11076507 11360520 11486748 11523330 11572470 11928546 12001080 12307230 12370344 12462660 13253940 13401206 13501215 13827996 13916637 14358435 14768676 15364440 15429960 15462930 15904728 16201458 16409640 17040780 17230122 17284995 18001620 18460845 18555516 19144580 19754280 19880910 20101809 20617240 21601944 22153014 22973496 23046660 23144940 23194395 23857092 24614460 24925320 25845183 26507880 26802412 27002430 27655992 27833274 28716870 29537352 29821365 30925860 32402916 33503015 34081560 34460244 34569990 36003240 36921690 37111032 38289160 39761820 40203618 40503645 41749911 43075305 44306028 46093320 46289880 46388790 47714184 49228920 51690366 53604824 54004860 55382535 55666548 57433740 59642730 60305427 61851720 64805832 67006030 68920488 69139980 69583185 73843380 77535549 79523640 80407236 81007290 83499822 86150610 88612056 92777580 100509045 103380732 108009720 110765070 111333096 114867480 119285460 120610854 129225915 134012060 138279960 139166370 147686760 155071098 160814472 162014580 166999644 172301220 180916281 185555160 201018090 206761464 208749555 221530140 238570920 241221708 258451830 268024120 278332740 301527135 310142196 324029160 333999288 344602440 361832562 387677745 402036180 417499110 443060280 482443416 516903660 542748843 556665480 603054270 620284392 723665124 775355490 804072360 834998220 904581405 1033807320 1085497686 1206108540 1447330248 1550710980 1669996440 1809162810 2170995372 2412217080 2713744215 3101421960 3618325620 4341990744 5427488430 7236651240 10854976860 21709953720
• Sum of all divisors σ(n): 93367723680
• Sum of proper divisors (its aliquot sum) s(n): 71657769960
• 21709953720 is an abundant number, because the sum of its proper divisors (71657769960) is greater than itself. Its abundance is 49947816240

Bases of 21709953720

• Binary: 10100001110000000111001101010111000₂
• Hexadecimal: 0x50E039AB8
• Base-36: 9Z1JNI0

Squares and roots of 21709953720

• 21709953720 squared (21709953720²) is 471322090524541838400
• 21709953720 cubed (21709953720³) is 10232380772501453835867718848000
• The square root of 21709953720 is 147342.9798802779
• The cube root of 21709953720 is 2789.6708595421

Scales and comparisons

• 21,709,953,720 seconds is equal to 690 years, 16 weeks, 14 hours, 42 minutes.
• To count from 1 to 21,709,953,720 would take you about one thousand, three hundred eighty 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 21709953720 cubic inches would be around 232.5 feet tall.

Recreational maths with 21709953720

• 21709953720 backwards is 02735990712
• 21709953720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21709953720's digits is 45
• More coming soon!