21185401109664

Names of 21185401109664

• Cardinal: 21185401109664 can be written as Twenty-one trillion, one hundred eighty-five billion, four hundred one million, one hundred nine thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 2.1185401109664 × 10¹³

Factors of 21185401109664

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 7256

Divisors of 21185401109664

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 121 132 176 242 264 352 363 484 521 528 726 968 1042 1056 1452 1563 1936 2084 2904 3126 3872 4168 5731 5808 6252 6719 8336 11462 11616 12504 13438 16672 17193 20157 22924 25008 26876 34386 40314 45848 50016 53752 63041 68772 73909 80628 91696 107504 126082 137544 147818 161256 183392 189123 215008 221727 252164 271441 275088 295636 322512 378246 443454 504328 542882 550176 591272 645024 756492 812999 814323 886908 1008656 1085764 1182544 1512984 1625998 1628646 1773816 2017312 2171528 2365088 2438997 2985851 3025968 3251996 3257292 3500599 3547632 4343056 4877994 5971702 6051936 6503992 6514584 7001198 7095264 8686112 8957553 9755988 10501797 11943404 13007984 13029168 14002396 17915106 19511976 21003594 23886808 26015968 26058336 28004792 32844361 35830212 38506589 39023952 42007188 47773616 56009584 65688722 71660424 77013178 78047904 84014376 95547232 98533083 112019168 115519767 131377444 143320848 154026356 168028752 197066166 231039534 262754888 286641696 308052712 336057504 394132332 423572479 462079068 525509776 616105424 788264664 847144958 924158136 1051019552 1232210848 1270717437 1576529328 1694289916 1823812079 1848316272 2541434874 3153058656 3388579832 3647624158 3696632544 5082869748 5471436237 6777159664 7295248316 10165739496 10942872474 13554319328 14590496632 20061932869 20331478992 21885744948 29180993264 40123865738 40662957984 43771489896 58361986528 60185798607 80247731476 87542979792 120371597214 160495462952 175085959584 220681261559 240743194428 320990925904 441362523118 481486388856 641981851808 662043784677 882725046236 962972777712 1324087569354 1765450092472 1925945555424 2648175138708 3530900184944 5296350277416 7061800369888 10592700554832 21185401109664
• Sum of all divisors σ(n): 61253552021760
• Sum of proper divisors (its aliquot sum) s(n): 40068150912096
• 21185401109664 is an abundant number, because the sum of its proper divisors (40068150912096) is greater than itself. Its abundance is 18882749802432

Bases of 21185401109664

• Binary: 100110100010010011100010011101011110010100000₂
• Hexadecimal: 0x13449C4EBCA0
• Base-36: 7ICFSTVHC

Squares and roots of 21185401109664

• 21185401109664 squared (21185401109664²) is 448821220177352642554192896
• 21185401109664 cubed (21185401109664³) is 9508457575986037140449440926174305746944
• The square root of 21185401109664 is 4602760.1620836165
• The cube root of 21185401109664 is 27670.1956750785

Scales and comparisons

• 21,185,401,109,664 seconds is equal to 673,630 years, 11 weeks, 4 days, 17 hours, 34 minutes, 24 seconds.
• To count from 1 to 21,185,401,109,664 would take you about one million, six hundred eighty-four thousand and seventy-five 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 21185401109664 cubic inches would be around 2305.8 feet tall.

Recreational maths with 21185401109664

• 21185401109664 backwards is 46690110458112
• 21185401109664 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21185401109664's digits is 48
• More coming soon!