31385699513700891

Names of 31385699513700891

• Cardinal: 31385699513700891 can be written as Thirty-one quadrillion, three hundred eighty-five trillion, six hundred ninety-nine billion, five hundred thirteen million, seven hundred thousand, eight hundred ninety-one.

Scientific notation

• Scientific notation: 3.1385699513700891 × 10¹⁶

Factors of 31385699513700891

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2555

Divisors of 31385699513700891

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 37 61 111 183 593 1369 1779 1861 2257 3721 4107 5583 6771 11163 21941 36173 65823 68857 83509 108519 113521 137677 206571 250527 340563 413031 811817 1103573 1338401 2206553 2435451 2547709 3310719 3463321 4015203 4200277 5094049 6619659 6924781 7643127 10389963 12600831 15282147 20774343 40832201 49520837 67317953 81642461 122496603 128142877 148562511 155410249 201953859 211262581 244927383 256216897 384428631 466230747 633787743 768650691 1510791437 2053749353 2490764261 3020771057 4106395133 4532374311 4741286449 6161248059 7472292783 7816715497 9062313171 9480025189 12319185399 12887017441 14223859347 23450146491 28440075567 38661052323 75988726061 92158277657 125278710533 151936619921 227966178183 276474832971 289218473389 375836131599 455809859763 476819645317 867655420167 1430458935951 2811582864257 4635312289721 5621654937077 7642001342513 8434748592771 13905936869163 16864964811231 17642326876729 22926004027539 52926980630187 171506554719677 282754049672981 514519664159031 848262149018943 10461899837900297 31385699513700891
• Sum of all divisors σ(n): 43823095388320248
• Sum of proper divisors (its aliquot sum) s(n): 12437395874619357
• 31385699513700891 is a deficient number, because the sum of its proper divisors (12437395874619357) is less than itself. Its deficiency is 18948303639081534

Bases of 31385699513700891

• Binary: 1101111100000010010000010011110100010101001001000011011₂
• Hexadecimal: 0x6F81209E8A921B
• Base-36: 8L1AVB3PKBF

Squares and roots of 31385699513700891

• 31385699513700891 squared (31385699513700891²) is 985062133964324345804223414193881
• 31385699513700891 cubed (31385699513700891³) is 30916864138929256563618047659263156142277716447971
• The square root of 31385699513700891 is 177160095.7148671531
• The cube root of 31385699513700891 is 315435.5259286487

Scales and comparisons

• 31,385,699,513,700,891 seconds is equal to 997,968,162 years, 10 weeks, 4 hours, 54 minutes, 51 seconds.
• To count from 1 to 31,385,699,513,700,891 would take you about two billion, nine hundred ninety-three million, nine hundred four thousand, four hundred eighty-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 31385699513700891 cubic inches would be around 26286.3 feet tall.

Recreational maths with 31385699513700891

• 31385699513700891 backwards is 19800731599658313
• The number of decimal digits it has is: 17
• The sum of 31385699513700891's digits is 78
• More coming soon!