31720986845856

Names of 31720986845856

• Cardinal: 31720986845856 can be written as Thirty-one trillion, seven hundred twenty billion, nine hundred eighty-six million, eight hundred forty-five thousand, eight hundred fifty-six.

Scientific notation

• Scientific notation: 3.1720986845856 × 10¹³

Factors of 31720986845856

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1430419704

Divisors of 31720986845856

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 32 33 36 42 44 48 56 63 66 72 77 84 88 96 99 112 126 132 144 154 168 176 198 224 231 252 264 288 308 336 352 396 462 504 528 616 672 693 792 924 1008 1056 1232 1386 1584 1848 2016 2464 2772 3168 3696 5544 7392 11088 22176 1430419681 2860839362 4291259043 5721678724 8582518086 10012937767 11443357448 12873777129 15734616491 17165036172 20025875534 22886714896 25747554258 30038813301 31469232982 34330072344 40051751068 45773429792 47203849473 51495108516 60077626602 62938465964 68660144688 80103502136 90116439903 94407698946 102990217032 110142315437 120155253204 125876931928 137320289376 141611548419 160207004272 180232879806 188815397892 205980434064 220284630874 240310506408 251753863856 283223096838 320414008544 330426946311 360465759612 377630795784 411960868128 440569261748 480621012816 503507727712 566446193676 660853892622 720931519224 755261591568 881138523496 961242025632 991280838933 1132892387352 1321707785244 1441863038448 1510523183136 1762277046992 1982561677866 2265784774704 2643415570488 2883726076896 3524554093984 3965123355732 4531569549408 5286831140976 7930246711464 10573662281952 15860493422928 31720986845856
• Sum of all divisors σ(n): 112465317077568
• Sum of proper divisors (its aliquot sum) s(n): 80744330231712
• 31720986845856 is an abundant number, because the sum of its proper divisors (80744330231712) is greater than itself. Its abundance is 49023343385856

Bases of 31720986845856

• Binary: 111001101100110011110001001110010001010100000₂
• Hexadecimal: 0x1CD99E2722A0
• Base-36: B8SF4K140

Squares and roots of 31720986845856

• 31720986845856 squared (31720986845856²) is 1006221006474969383504372736
• 31720986845856 cubed (31720986845856³) is 31918323310416488817462541350912400982016
• The square root of 31720986845856 is 5632138.7452597437
• The cube root of 31720986845856 is 31655.4795181321

Scales and comparisons

• 31,720,986,845,856 seconds is equal to 1,008,629 years, 13 weeks, 4 days, 10 hours, 57 minutes, 36 seconds.
• To count from 1 to 31,720,986,845,856 would take you about two million, five hundred twenty-one thousand, five hundred seventy-three 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 31720986845856 cubic inches would be around 2638 feet tall.

Recreational maths with 31720986845856

• 31720986845856 backwards is 65854868902713
• 31720986845856 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 31720986845856's digits is 72
• More coming soon!