20724398640

Names of 20724398640

• Cardinal: 20724398640 can be written as Twenty billion, seven hundred twenty-four million, three hundred ninety-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.072439864 × 10¹⁰

Factors of 20724398640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 342

Divisors of 20724398640

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 33 36 40 44 45 48 54 55 60 61 66 72 79 80 88 90 99 108 110 120 122 132 135 144 158 165 176 180 181 183 198 216 220 237 240 244 264 270 297 305 316 330 360 362 366 395 396 432 440 474 488 495 528 540 543 549 594 610 632 660 671 711 720 724 732 790 792 869 880 905 915 948 976 990 1080 1086 1098 1185 1188 1220 1264 1320 1342 1422 1448 1464 1485 1580 1584 1629 1647 1738 1810 1830 1896 1980 1991 2013 2133 2160 2172 2196 2370 2376 2440 2607 2640 2684 2715 2745 2844 2896 2928 2970 3160 3258 3294 3355 3476 3555 3620 3660 3792 3960 3982 4026 4266 4344 4345 4392 4740 4752 4819 4880 4887 5214 5368 5430 5490 5688 5940 5973 6039 6320 6516 6588 6710 6952 7110 7240 7320 7821 7920 7964 8052 8145 8235 8532 8688 8690 8784 9480 9638 9774 9955 10065 10428 10665 10736 10860 10980 11041 11376 11880 11946 12078 13032 13035 13176 13420 13904 14220 14299 14457 14480 14640 15642 15928 16104 16290 16470 17064 17380 17919 18117 18960 19276 19548 19910 20130 20856 21330 21720 21960 22082 23463 23760 23892 24095 24156 24435 26064 26070 26352 26840 28440 28598 28914 29865 30195 31284 31856 32208 32580 32940 33123 34128 34760 35838 36234 38552 39096 39105 39820 40260 41712 42660 42897 43371 43440 43920 44164 46926 47784 48190 48312 48870 52140 53009 53680 53757 55205 56880 57196 57828 59730 60390 62568 65160 65880 66246 69520 71495 71676 72285 72468 77104 78192 78210 79640 80520 85320 85794 86742 88328 89595 90585 93852 95568 96380 96624 97740 99369 104280 106018 107514 110410 114392 115656 117315 119460 120780 121451 125136 128691 130113 130320 131760 132492 142990 143352 144570 144936 156420 157289 159027 159280 161040 165615 170640 171588 173484 176656 179190 181170 187704 192760 195480 198738 208560 212036 214485 215028 216855 220820 228784 231312 234630 238920 241560 242902 257382 260226 264984 265045 268785 285980 286704 289140 289872 298107 312840 314578 318054 331230 343176 346968 358380 362340 364353 375408 385520 386073 390960 397476 424072 428970 430056 433710 441640 469260 471867 477081 477840 483120 485804 496845 514764 520452 529968 530090 537570 571960 578280 596214 607255 625680 629156 636108 643455 650565 662460 686352 693936 716760 724680 728706 772146 786445 794952 795135 848144 857940 860112 867420 872239 883280 938520 943734 954162 971608 993690 1029528 1040904 1060180 1075140 1093059 1143920 1156560 1192428 1214510 1258312 1272216 1286910 1301130 1324920 1415601 1431243 1433520 1449360 1457412 1490535 1544292 1572890 1589904 1590270 1715880 1734840 1744478 1821765 1877040 1887468 1908324 1930365 1943216 1987380 2059056 2081808 2120360 2150280 2186118 2359335 2384856 2385405 2429020 2516624 2544432 2573820 2602260 2616717 2649840 2831202 2862486 2914824 2981070 3088584 3145780 3180540 3279177 3431760 3469680 3488956 3643530 3774936 3816648 3860730 3974760 4240720 4246803 4300560 4361195 4372236 4718670 4769712 4770810 4858040 5147640 5204520 5233434 5465295 5662404 5724972 5829648 5962140 6177168 6291560 6361080 6558354 6977912 7078005 7156215 7287060 7549872 7633296 7721460 7850151 7949520 8493606 8722390 8744472 9437340 9541620 9594629 9716080 10295280 10409040 10466868 10930590 11324808 11449944 11924280 12583120 12722160 13083585 13116708 13955824 14156010 14312430 14574120 15442920 15700302 16395885 16987212 17444780 17488944 18874680 19083240 19189258 20933736 21234015 21861180 22649616 22899888 23550453 23848560 26167170 26233416 28312020 28624860 28783887 29148240 30885840 31400604 32791770 33974424 34889560 37749360 38166480 38378516 39250755 41867472 42468030 43722360 47100906 47973145 52334340 52466832 56624040 57249720 57567774 62801208 65583540 67948848 69779120 76757032 78501510 84936060 86351661 87444720 94201812 95946290 104668680 113248080 114499440 115135548 117752265 125602416 131167080 143919435 153514064 157003020 169872120 172703322 188403624 191892580 209337360 230271096 235504530 259054983 262334160 287838870 314006040 339744240 345406644 376807248 383785160 431758305 460542192 471009060 518109966 575677740 628012080 690813288 767570320 863516610 942018120 1036219932 1151355480 1295274915 1381626576 1727033220 1884036240 2072439864 2302710960 2590549830 3454066440 4144879728 5181099660 6908132880 10362199320 20724398640
• Sum of all divisors σ(n): 80594841600
• Sum of proper divisors (its aliquot sum) s(n): 59870442960
• 20724398640 is an abundant number, because the sum of its proper divisors (59870442960) is greater than itself. Its abundance is 39146044320

Bases of 20724398640

• Binary: 10011010011010001010011101000110000₂
• Hexadecimal: 0x4D3453A30
• Base-36: 9IQRSC0

Squares and roots of 20724398640

• 20724398640 squared (20724398640²) is 429500698989633849600
• 20724398640 cubed (20724398640³) is 8901143702019817126748204544000
• The square root of 20724398640 is 143959.7118641185
• The cube root of 20724398640 is 2746.8017315313

Scales and comparisons

• 20,724,398,640 seconds is equal to 658 years, 50 weeks, 3 days, 17 hours, 24 minutes.
• To count from 1 to 20,724,398,640 would take you about one thousand, three hundred seventeen 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 20724398640 cubic inches would be around 228.9 feet tall.

Recreational maths with 20724398640

• 20724398640 backwards is 04689342702
• 20724398640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20724398640's digits is 45
• More coming soon!