21520995120

Names of 21520995120

• Cardinal: 21520995120 can be written as Twenty-one billion, five hundred twenty million, nine hundred ninety-five thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.152099512 × 10¹⁰

Factors of 21520995120

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1196

Divisors of 21520995120

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 29 30 36 40 41 45 46 48 58 60 69 72 80 82 87 90 92 115 116 120 123 138 144 145 164 174 180 184 205 207 230 232 240 246 261 276 290 328 345 348 360 368 369 410 414 435 460 464 492 522 552 580 615 656 667 690 696 720 738 820 828 870 920 943 984 1035 1044 1093 1104 1160 1189 1230 1305 1334 1380 1392 1476 1640 1656 1740 1840 1845 1886 1968 2001 2070 2088 2186 2320 2378 2460 2610 2668 2760 2829 2952 3279 3280 3312 3335 3480 3567 3690 3772 4002 4140 4176 4372 4715 4756 4920 5220 5336 5465 5520 5658 5904 5945 6003 6558 6670 6960 7134 7380 7544 8004 8280 8487 8744 9430 9512 9837 9840 10005 10440 10672 10701 10930 11316 11890 12006 13116 13340 14145 14268 14760 15088 16008 16395 16560 16974 17488 17835 18860 19024 19674 20010 20880 21402 21860 22632 23780 24012 25139 26232 26680 27347 28290 28536 29520 30015 31697 32016 32790 33948 35670 37720 39348 40020 42435 42804 43720 44813 45264 47560 48024 49185 50278 52464 53360 53505 54694 56580 57072 60030 63394 65580 67896 71340 75417 75440 78696 80040 82041 84870 85608 87440 89626 95091 95120 96048 98370 100556 107010 109388 113160 120060 125695 126788 131160 134439 135792 136735 142680 150834 157392 158485 160080 164082 169740 171216 179252 190182 196740 201112 214020 218776 224065 226251 226320 240120 246123 251390 253576 262320 268878 273470 285273 285360 301668 316970 328164 339480 358504 377085 380364 393480 402224 403317 410205 428040 437552 448130 452502 475455 480240 492246 502780 507152 537756 546940 570546 603336 633940 656328 672195 678960 717008 729031 754170 760728 786960 806634 820410 856080 896260 905004 950910 984492 1005560 1030699 1075512 1093880 1131255 1141092 1206672 1230615 1267880 1299577 1312656 1344390 1426365 1458062 1508340 1521456 1613268 1640820 1792520 1810008 1901820 1968984 2011120 2016585 2061398 2151024 2187093 2187760 2262510 2282184 2461230 2535760 2599154 2688780 2852730 2916124 3016680 3092097 3226536 3281640 3585040 3620016 3645155 3803640 3898731 3937968 4033170 4122796 4374186 4525020 4564368 4922460 5153495 5198308 5377560 5705460 5832248 6033360 6184194 6453072 6497885 6561279 6563280 7290310 7607280 7797462 8066340 8245592 8748372 9050040 9276291 9844920 10306990 10396616 10755120 10935465 11410920 11664496 11696193 12368388 12995770 13122558 14580620 15460485 15594924 16132680 16491184 17496744 18100080 18552582 19493655 19689840 20613980 20793232 21870930 22821840 23392386 24736776 25991540 26245116 29161240 29890271 30920970 31189848 32265360 32806395 34993488 37105164 38987310 41227960 43741860 46381455 46784772 49473552 51983080 52490232 58322480 58480965 59780542 61841940 62379696 65612790 74210328 77974620 82455920 87483720 89670813 92762910 93569544 103966160 104980464 116961930 119561084 123683880 131225580 148420656 149451355 155949240 174967440 179341626 185525820 187139088 233923860 239122168 247367760 262451160 269012439 298902710 311898480 358683252 371051640 448354065 467847720 478244336 524902320 538024878 597805420 717366504 742103280 896708130 935695440 1076049756 1195610840 1345062195 1434733008 1793416260 2152099512 2391221680 2690124390 3586832520 4304199024 5380248780 7173665040 10760497560 21520995120
• Sum of all divisors σ(n): 79993630080
• Sum of proper divisors (its aliquot sum) s(n): 58472634960
• 21520995120 is an abundant number, because the sum of its proper divisors (58472634960) is greater than itself. Its abundance is 36951639840

Bases of 21520995120

• Binary: 10100000010110000000101001100110000₂
• Hexadecimal: 0x502C05330
• Base-36: 9VX1M40

Squares and roots of 21520995120

• 21520995120 squared (21520995120²) is 463153230955063814400
• 21520995120 cubed (21520995120³) is 9967518423196161288990985728000
• The square root of 21520995120 is 146700.3582817709
• The cube root of 21520995120 is 2781.5537059619

Scales and comparisons

• 21,520,995,120 seconds is equal to 684 years, 15 weeks, 4 days, 14 hours, 12 minutes.
• To count from 1 to 21,520,995,120 would take you about one thousand, three hundred sixty-eight 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 21520995120 cubic inches would be around 231.8 feet tall.

Recreational maths with 21520995120

• 21520995120 backwards is 02159902512
• 21520995120 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21520995120's digits is 36
• More coming soon!