31890689688

Names of 31890689688

• Cardinal: 31890689688 can be written as Thirty-one billion, eight hundred ninety million, six hundred eighty-nine thousand, six hundred eighty-eight.

Scientific notation

• Scientific notation: 3.1890689688 × 10¹⁰

Factors of 31890689688

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 489109

Divisors of 31890689688

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 11 12 13 19 22 24 26 33 38 39 44 52 57 66 76 78 88 104 114 132 143 152 156 209 228 247 264 286 312 418 429 456 494 572 627 741 836 858 988 1144 1254 1482 1672 1716 1976 2508 2717 2964 3432 5016 5434 5928 8151 10868 16302 21736 32604 65208 489061 978122 1467183 1956244 2934366 3912488 5379671 5868732 6357793 9292159 10759342 11737464 12715586 16139013 18584318 19073379 21518684 25431172 27876477 32278026 37168636 38146758 43037368 50862344 55752954 64556052 69935723 74337272 76293516 102213749 111505908 120798067 129112104 139871446 152587032 204427498 209807169 223011816 241596134 279742892 306641247 362394201 408854996 419614338 483192268 559485784 613282494 724788402 817709992 839228676 966384536 1226564988 1328778737 1449576804 1678457352 2453129976 2657557474 2899153608 3986336211 5315114948 7972672422 10630229896 15945344844 31890689688
• Sum of all divisors σ(n): 98594899200
• Sum of proper divisors (its aliquot sum) s(n): 66704209512
• 31890689688 is an abundant number, because the sum of its proper divisors (66704209512) is greater than itself. Its abundance is 34813519824

Bases of 31890689688

• Binary: 11101101100110101010100111010011000₂
• Hexadecimal: 0x76CD54E98
• Base-36: ENEW5NC

Squares and roots of 31890689688

• 31890689688 squared (31890689688²) is 1017016088776309537344
• 31890689688 cubed (31890689688³) is 32433344494868747101272351708672
• The square root of 31890689688 is 178579.6452230769
• The cube root of 31890689688 is 3171.1829944017

Scales and comparisons

• 31,890,689,688 seconds is equal to 1,014 years, 1 week, 2 days, 4 hours, 54 minutes, 48 seconds.
• To count from 1 to 31,890,689,688 would take you about two thousand and twenty-eight 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 31890689688 cubic inches would be around 264.3 feet tall.

Recreational maths with 31890689688

• 31890689688 backwards is 88698609813
• 31890689688 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31890689688's digits is 66
• More coming soon!