399640456839

Names of 399640456839

• Cardinal: 399640456839 can be written as Three hundred ninety-nine billion, six hundred forty million, four hundred fifty-six thousand, eight hundred thirty-nine.

Scientific notation

• Scientific notation: 3.99640456839 × 10¹¹

Factors of 399640456839

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 827

Divisors of 399640456839

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 13 17 39 51 61 169 183 221 289 507 663 733 793 867 1037 2199 2379 2873 3111 3721 3757 8619 9529 10309 11163 11271 12461 13481 17629 28587 30927 37383 40443 44713 48373 48841 52887 63257 123877 134139 145119 146523 161993 175253 189771 211837 229177 371631 485979 525759 581269 628849 635511 687531 760121 822341 1075369 1743807 1886547 2105909 2280363 2467023 2727493 2753881 2979301 3226107 6317727 7556497 8182479 8261643 8937903 9881573 10690433 12922057 13979797 22669491 29644719 32071299 35457409 35800453 38766171 41939391 46367381 106372227 107401359 128460449 139102143 167986741 181737361 385381347 460946317 503960223 545212083 602775953 788245477 1382838951 1808327859 2183827633 2364736431 6551482899 7836087389 10247191201 23508262167 30741573603 133213485613 399640456839
• Sum of all divisors σ(n): 623996074728
• Sum of proper divisors (its aliquot sum) s(n): 224355617889
• 399640456839 is a deficient number, because the sum of its proper divisors (224355617889) is less than itself. Its deficiency is 175284838950

Bases of 399640456839

• Binary: 101110100001100011011010110111010000111₂
• Hexadecimal: 0x5D0C6D6E87
• Base-36: 53LBLY13

Squares and roots of 399640456839

• 399640456839 squared (399640456839²) is 159712494742484621871921
• 399640456839 cubed (399640456839³) is 63827574361782939946826679786517719
• The square root of 399640456839 is 632171.2243047765
• The cube root of 399640456839 is 7365.8547216229

Scales and comparisons

• 399,640,456,839 seconds is equal to 12,707 years, 17 weeks, 1 day, 6 hours, 39 seconds.
• To count from 1 to 399,640,456,839 would take you about twenty-five thousand, four hundred fourteen 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 399640456839 cubic inches would be around 613.8 feet tall.

Recreational maths with 399640456839

• 399640456839 backwards is 938654046993
• The number of decimal digits it has is: 12
• The sum of 399640456839's digits is 66
• More coming soon!