21017729652934938

Names of 21017729652934938

• Cardinal: 21017729652934938 can be written as Twenty-one quadrillion, seventeen trillion, seven hundred twenty-nine billion, six hundred fifty-two million, nine hundred thirty-four thousand, nine hundred thirty-eight.

Scientific notation

• Scientific notation: 2.1017729652934938 × 10¹⁶

Factors of 21017729652934938

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 23

Divisors of 21017729652934938

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 6 7 11 14 21 22 33 42 49 66 77 98 121 147 154 231 242 294 343 363 462 539 686 726 847 1029 1078 1331 1617 1694 2058 2401 2541 2662 3234 3773 3993 4802 5082 5929 7203 7546 7986 9317 11319 11858 14406 14641 16807 17787 18634 22638 26411 27951 29282 33614 35574 41503 43923 50421 52822 55902 65219 79233 83006 87846 100842 102487 117649 124509 130438 158466 161051 184877 195657 204974 235298 249018 290521 307461 322102 352947 369754 391314 456533 483153 554631 581042 614922 705894 717409 823543 871563 913066 966306 1109262 1127357 1294139 1369599 1434818 1647086 1743126 1771561 2033647 2152227 2254714 2470629 2588278 2739198 3195731 3382071 3543122 3882417 4067294 4304454 4941258 5021863 5314683 5764801 6100941 6391462 6764142 7764834 7891499 9058973 9587193 10043726 10629366 11529602 12201882 12400927 14235529 15065589 15782998 17294403 18117946 19174386 22370117 23674497 24801854 27176919 28471058 30131178 34588806 35153041 37202781 40353607 42706587 44740234 47348994 54353838 55240493 63412811 67110351 70306082 74405562 80707214 85413174 86806489 99648703 105459123 110480986 121060821 126825622 134220702 156590819 165721479 173612978 190238433 199297406 210918246 242121642 246071287 260419467 282475249 298946109 313181638 331442958 380476866 386683451 443889677 469772457 492142574 520838934 564950498 597892218 607645423 697540921 738213861 773366902 847425747 887779354 939544914 1096135733 1160050353 1215290846 1331669031 1395081842 1476427722 1694851494 1722499009 1822936269 1977326743 2092622763 2192271466 2320100706 2663338062 2706784157 3107227739 3288407199 3444998018 3645872538 3954653486 4185245526 4253517961 4882786447 5167497027 5413568314 5931980229 6214455478 6576814398 7672950131 8120352471 8507035922 9321683217 9765572894 10334994054 11863960458 12057493063 12760553883 14648359341 15345900262 16240704942 18643366434 18947489099 21750594173 23018850393 24114986126 25521107766 29296718682 29774625727 34179505129 36172479189 37894978198 43501188346 46037700786 53710650917 56842467297 59549251454 65251782519 68359010258 72344958378 84402451441 89323877181 102538515387 107421301834 113684934594 130503565038 132632423693 161131952751 168804902882 178647754362 205077030774 208422380089 239256535903 253207354323 265264847386 322263905502 375974556419 397897271079 416844760178 478513071806 506414708646 590817160087 625267140267 717769607709 751949112838 795794542158 928426965851 1127923669257 1181634320174 1250534280534 1435539215418 1458956660623 1772451480261 1856853931702 2255847338514 2631821894933 2785280897553 2917913321246 3544902960522 4135720120609 4376869981869 5263643789866 5570561795106 6498988760957 7895465684799 8271440241218 8753739963738 10212696624361 12407160361827 12997977521914 15790931369598 19496966282871 20425393248722 24814320723654 28950040844263 30638089873083 38993932565742 45492921326699 57900081688526 61276179746166 71488876370527 86850122532789 90985842653398 136478763980097 142977752741054 173700245065578 214466629111581 272957527960194 318450449286893 428933258223162 500422134593689 636900898573786 955351347860679 1000844269187378 1501266403781067 1910702695721358 3002532807562134 3502954942155823 7005909884311646 10508864826467469 21017729652934938
• Sum of all divisors σ(n): 53945503337044800
• Sum of proper divisors (its aliquot sum) s(n): 32927773684109862
• 21017729652934938 is an abundant number, because the sum of its proper divisors (32927773684109862) is greater than itself. Its abundance is 11910044031174924

Bases of 21017729652934938

• Binary: 1001010101010111000001110000101111100101100100100011010₂
• Hexadecimal: 0x4AAB8385F2C91A
• Base-36: 5QY5VPHNQ56

Squares and roots of 21017729652934938

• 21017729652934938 squared (21017729652934938²) is 441744959763860589355637261063844
• 21017729652934938 cubed (21017729652934938³) is 9284476139863443776085877126908599893486796181672
• The square root of 21017729652934938 is 144974927.6700455471
• The cube root of 21017729652934938 is 275970.0382870489
• Being both a perfect square and a perfect cube, 21017729652934938 is also a perfect sixth number.

Scales and comparisons

• 21,017,729,652,934,938 seconds is equal to 668,298,790 years, 44 weeks, 3 days, 22 hours, 22 minutes, 18 seconds.
• To count from 1 to 21,017,729,652,934,938 would take you about two billion, four million, eight hundred ninety-six thousand, three hundred seventy-two 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 21017729652934938 cubic inches would be around 22997.5 feet tall.

Recreational maths with 21017729652934938

• 21017729652934938 backwards is 83943925692771012
• The number of decimal digits it has is: 17
• The sum of 21017729652934938's digits is 78
• More coming soon!