990131491647

Names of 990131491647

• Cardinal: 990131491647 can be written as Nine hundred ninety billion, one hundred thirty-one million, four hundred ninety-one thousand, six hundred forty-seven.

Scientific notation

• Scientific notation: 9.90131491647 × 10¹¹

Factors of 990131491647

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 154

Divisors of 990131491647

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 9 23 31 69 93 97 207 279 291 529 713 873 961 1587 2139 2231 2883 3007 4761 6417 6693 8649 9021 9409 12167 16399 20079 22103 27063 28227 36501 49197 51313 66309 69161 84681 93217 109503 147591 153939 198927 207483 216407 279651 291679 377177 461817 508369 622449 649221 838953 875037 1131531 1180199 1525107 1590703 1947663 2143991 2625111 3394593 3540597 4575321 4772109 4977361 6431973 6708617 9042049 10621791 11692487 14316327 14932083 19295919 20125851 27126147 35077461 36586169 44796249 49311793 60377553 81378441 105232383 109758507 114479303 147935379 154298191 207967127 329275521 343437909 443806137 462894573 623901381 1030313727 1134171239 1388683719 1871704143 3402513717 3548858393 4783243921 10207541151 10646575179 14349731763 31939725537 43049195289 110014610183 330043830549 990131491647
• Sum of all divisors σ(n): 1561072977360
• Sum of proper divisors (its aliquot sum) s(n): 570941485713
• 990131491647 is a deficient number, because the sum of its proper divisors (570941485713) is less than itself. Its deficiency is 419190005934

Bases of 990131491647

• Binary: 1110011010001000011011111001001100111111₂
• Hexadecimal: 0xE6886F933F
• Base-36: CMUYQ4HR

Squares and roots of 990131491647

• 990131491647 squared (990131491647²) is 980360370751113230772609
• 990131491647 cubed (990131491647³) is 970685676243405692970680691439897023
• The square root of 990131491647 is 995053.5119514929
• The cube root of 990131491647 is 9966.9961666871

Scales and comparisons

• 990,131,491,647 seconds is equal to 31,483 years, 6 weeks, 1 day, 5 hours, 27 minutes, 27 seconds.
• To count from 1 to 990,131,491,647 would take you about sixty-two thousand, nine hundred sixty-six 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 990131491647 cubic inches would be around 830.6 feet tall.

Recreational maths with 990131491647

• 990131491647 backwards is 746194131099
• The number of decimal digits it has is: 12
• The sum of 990131491647's digits is 54
• More coming soon!