990035907021

Names of 990035907021

• Cardinal: 990035907021 can be written as Nine hundred ninety billion, thirty-five million, nine hundred seven thousand and twenty-one.

Scientific notation

• Scientific notation: 9.90035907021 × 10¹¹

Factors of 990035907021

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1087

Divisors of 990035907021

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 7 9 21 49 63 127 147 181 381 441 543 769 889 1143 1267 1629 2307 2667 3801 5383 6223 6921 8001 8869 11403 16129 16149 18669 22987 26607 37681 48387 48447 56007 68961 79821 97663 112903 113043 139189 145161 160909 206883 292989 338709 339129 417567 482727 683641 790321 878967 974323 1016127 1126363 1252701 1448181 2050923 2370963 2919349 2922969 3379089 4785487 6152769 6820261 7112889 8758047 8768907 10137267 12403201 14356461 17677003 20435443 20460783 26274141 37209603 43069383 53031009 61306329 61382349 86822407 111628809 123739021 143048101 159093027 183918987 260467221 371217063 429144303 607756849 781401663 866173147 1113651189 1287432909 1823270547 2244979381 2598519441 5469811641 6734938143 7795558323 15714855667 20204814429 47144567001 110003989669 141433701003 330011969007 990035907021
• Sum of all divisors σ(n): 1688187681180
• Sum of proper divisors (its aliquot sum) s(n): 698151774159
• 990035907021 is a deficient number, because the sum of its proper divisors (698151774159) is less than itself. Its deficiency is 291884132862

Bases of 990035907021

• Binary: 1110011010000010101111010001000111001101₂
• Hexadecimal: 0xE682BD11CD
• Base-36: CMTDTEX9

Squares and roots of 990035907021

• 990035907021 squared (990035907021²) is 980171097190894157094441
• 990035907021 cubed (990035907021³) is 970404581243155642001004157391970261
• The square root of 990035907021 is 995005.4808999797
• The cube root of 990035907021 is 9966.6754273821

Scales and comparisons

• 990,035,907,021 seconds is equal to 31,480 years, 4 weeks, 22 hours, 10 minutes, 21 seconds.
• To count from 1 to 990,035,907,021 would take you about sixty-two thousand, nine hundred sixty 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 990035907021 cubic inches would be around 830.6 feet tall.

Recreational maths with 990035907021

• 990035907021 backwards is 120709530099
• The number of decimal digits it has is: 12
• The sum of 990035907021's digits is 45
• More coming soon!