400640455840980987

Names of 400640455840980987

• Cardinal: 400640455840980987 can be written as Four hundred quadrillion, six hundred forty trillion, four hundred fifty-five billion, eight hundred forty million, nine hundred eighty thousand, nine hundred eighty-seven.

Scientific notation

• Scientific notation: 4.00640455840980987 × 10¹⁷

Factors of 400640455840980987

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 432

Divisors of 400640455840980987

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 9 59 113 177 257 339 531 771 1017 2313 3481 6667 10443 12769 15163 20001 29041 31329 38307 45489 60003 66049 87123 114921 136467 198147 205379 261369 393353 594441 616137 753371 894617 1180059 1713419 1848411 2260113 2683851 3281633 3540177 3896891 5140257 6780339 7463537 8051553 9844899 11690673 15420771 16974593 22390611 23207827 29534697 35072019 44448889 50923779 52782403 67171833 69623481 101091721 133346667 152771337 158347209 193616347 208870443 229916569 303275163 400040001 440348683 475041627 580849041 689749707 843379681 909825489 1001500987 1321046049 1742547123 1918129009 2069249121 2530139043 2622484451 3004502961 3963138147 5754387027 5964411539 7590417129 7867453353 9013508883 11423364473 13565077571 17263161081 17893234617 23602360059 25980572297 34270093419 40695232713 49759401179 53679703851 59088558233 77941716891 102810280257 113169611531 122085698139 149278203537 177265674699 216748578017 233825150673 339508834593 447834610611 531797024097 650245734051 673978503907 1018526503779 1532853765523 1950737202153 2021935511721 2935804669561 3486224935747 4598561296569 6065806535163 6677007080329 8807414008683 10458674807241 12788166103003 13795683889707 20031021240987 26422242026049 31376024421723 38364498309009 60093063722961 115093494927027 173212475504099 393943417739411 519637426512297 754501800077177 1181830253218233 1558912279536891 2263505400231531 3545490759654699 6790516200694593 44515606204553443 133546818613660329 400640455840980987
• Sum of all divisors σ(n): 596256194808612000
• Sum of proper divisors (its aliquot sum) s(n): 195615738967631013
• 400640455840980987 is a deficient number, because the sum of its proper divisors (195615738967631013) is less than itself. Its deficiency is 205024716873349974

Bases of 400640455840980987

• Binary: 10110001111010111000101111100110101000011010101111111111011₂
• Hexadecimal: 0x58F5C5F350D5FFB
• Base-36: 31KV6SJTOVSR

Squares and roots of 400640455840980987

• 400640455840980987 squared (400640455840980987²) is 160512774856469036263307190495494169
• 400640455840980987 cubed (400640455840980987³) is 64307911286796506206845006056541332265104600298364803
• The square root of 400640455840980987 is 632961654.3211610595
• The cube root of 400640455840980987 is 737199.3332840679

Scales and comparisons

• 400,640,455,840,980,987 seconds is equal to 12,739,127,233 years, 23 weeks, 1 day, 7 hours, 36 minutes, 27 seconds.
• To count from 1 to 400,640,455,840,980,987 would take you about thirty-eight billion, two hundred seventeen million, three hundred eighty-one thousand, seven hundred 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 400640455840980987 cubic inches would be around 61433.3 feet tall.

Recreational maths with 400640455840980987

• 400640455840980987 backwards is 789089048554046004
• The number of decimal digits it has is: 18
• The sum of 400640455840980987's digits is 81
• More coming soon!