406409906721

Names of 406409906721

• Cardinal: 406409906721 can be written as Four hundred six billion, four hundred nine million, nine hundred six thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 4.06409906721 × 10¹¹

Factors of 406409906721

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2517

Divisors of 406409906721

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 13 21 31 37 39 49 79 91 93 111 147 217 237 259 273 403 481 553 637 651 777 1027 1147 1209 1443 1519 1659 1813 1911 2347 2449 2821 2923 3081 3367 3441 3871 4557 5439 7041 7189 7347 8029 8463 8769 10101 11613 14911 16429 17143 19747 20461 21567 23569 24087 30511 31837 37999 44733 49287 50323 51429 56203 59241 61383 70707 72757 86839 90613 91533 95511 104377 113997 115003 120001 143227 150969 168609 185413 213577 218271 222859 260517 265993 271839 313131 345009 360003 429681 509299 556239 607873 634291 640731 668577 730639 797979 945841 1128907 1177969 1297891 1495039 1527897 1560013 1823619 1861951 1902873 2191917 2410369 2692009 2837523 3386721 3533907 3565093 3893673 4255111 4440037 4485117 4680039 5585853 5747803 6620887 6860281 7231107 7902349 8076027 8245783 9085237 10695279 12765333 13320111 16872583 17243409 18844063 19862661 20580843 23707047 24737349 27255711 34996117 40234621 46346209 48021967 50617749 55316443 56532189 57720481 74721439 89183653 104988351 118108081 120703863 131908441 139038627 144065901 165949329 173161443 212668711 224164317 244972819 267550959 281642347 336153769 354324243 395725323 523050073 624285571 638006133 734918457 844927041 1008461307 1488680977 1569150219 1714809733 1872856713 2764693243 3661350511 4369998997 4466042931 5144429199 8294079729 10420766839 10984051533 13109996991 19352852701 31262300517 58058558103 135469968907 406409906721
• Sum of all divisors σ(n): 729095700480
• Sum of proper divisors (its aliquot sum) s(n): 322685793759
• 406409906721 is a deficient number, because the sum of its proper divisors (322685793759) is less than itself. Its deficiency is 83724112962

Bases of 406409906721

• Binary: 101111010011111111010110000101000100001₂
• Hexadecimal: 0x5E9FEB0A21
• Base-36: 56P9YQZL

Squares and roots of 406409906721

• 406409906721 squared (406409906721²) is 165169012280971920971841
• 406409906721 cubed (406409906721³) is 67126322874309501845386084477643361
• The square root of 406409906721 is 637502.8680100193
• The cube root of 406409906721 is 7407.2117831021

Scales and comparisons

• 406,409,906,721 seconds is equal to 12,922 years, 30 weeks, 8 hours, 45 minutes, 21 seconds.
• To count from 1 to 406,409,906,721 would take you about twenty-five thousand, eight hundred forty-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 406409906721 cubic inches would be around 617.3 feet tall.

Recreational maths with 406409906721

• 406409906721 backwards is 127609904604
• The number of decimal digits it has is: 12
• The sum of 406409906721's digits is 48
• More coming soon!