399839127129

Names of 399839127129

• Cardinal: 399839127129 can be written as Three hundred ninety-nine billion, eight hundred thirty-nine million, one hundred twenty-seven thousand, one hundred twenty-nine.

Scientific notation

• Scientific notation: 3.99839127129 × 10¹¹

Factors of 399839127129

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 806

Divisors of 399839127129

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 9 13 31 39 61 93 97 117 183 279 291 403 549 601 793 873 961 1209 1261 1803 1891 2379 2883 3007 3627 3783 5409 5673 5917 7137 7813 8649 9021 11349 12493 17019 17751 18631 23439 24583 27063 36661 37479 39091 53253 55893 58297 58621 70317 73749 76921 93217 109983 112437 117273 167679 174891 175863 183427 221247 230763 242203 279651 329949 351819 476593 524673 527589 550281 577561 692289 726609 757861 762073 838953 1136491 1211821 1429779 1650843 1732683 1807207 2179827 2273583 2286219 2384551 3409473 3556117 3635463 4289337 5198049 5421621 5686237 6820749 6858657 7153653 7508293 10228419 10668351 10906389 14774383 16264863 17058711 21460959 22524879 23493691 32005053 35231221 44323149 46229521 51176133 56023417 67574637 70481073 73921081 105693663 110239627 132969447 138688563 168070251 211443219 221763243 317080989 330718881 416065689 458005873 504210753 665289729 728304421 992156643 1374017619 1433115151 2184913263 3417428437 4122052857 4299345453 6554739789 10252285311 12898036359 30756855933 44426569681 133279709043 399839127129
• Sum of all divisors σ(n): 661050887952
• Sum of proper divisors (its aliquot sum) s(n): 261211760823
• 399839127129 is a deficient number, because the sum of its proper divisors (261211760823) is less than itself. Its deficiency is 138627366306

Bases of 399839127129

• Binary: 101110100011000010001001110011001011001₂
• Hexadecimal: 0x5D1844E659
• Base-36: 53OLW509

Squares and roots of 399839127129

• 399839127129 squared (399839127129²) is 159871327583280623782641
• 399839127129 cubed (399839127129³) is 63922812073853345667509815662367689
• The square root of 399839127129 is 632328.3380720811
• The cube root of 399839127129 is 7367.0750969569

Scales and comparisons

• 399,839,127,129 seconds is equal to 12,713 years, 33 weeks, 4 days, 16 hours, 12 minutes, 9 seconds.
• To count from 1 to 399,839,127,129 would take you about twenty-five thousand, four hundred twenty-seven 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 399839127129 cubic inches would be around 613.9 feet tall.

Recreational maths with 399839127129

• 399839127129 backwards is 921721938993
• The number of decimal digits it has is: 12
• The sum of 399839127129's digits is 63
• More coming soon!