31890382128

Names of 31890382128

• Cardinal: 31890382128 can be written as Thirty-one billion, eight hundred ninety million, three hundred eighty-two thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 3.1890382128 × 10¹⁰

Factors of 31890382128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5332

Divisors of 31890382128

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 48 54 66 72 88 99 108 132 144 176 198 216 264 297 396 432 528 594 792 1188 1584 2063 2376 3253 4126 4752 6189 6506 8252 9759 12378 13012 16504 18567 19518 22693 24756 26024 29277 33008 35783 37134 39036 45386 49512 52048 55701 58554 68079 71566 74268 78072 87831 90772 99024 107349 111402 117108 136158 143132 148536 156144 175662 181544 204237 214698 222804 234216 272316 286264 297072 322047 351324 363088 408474 429396 445608 468432 544632 572528 612711 644094 702648 816948 858792 891216 966141 1089264 1225422 1288188 1405296 1633896 1717584 1932282 2450844 2576376 3267792 3864564 4901688 5152752 6710939 7729128 9803376 13421878 15458256 20132817 26843756 40265634 53687512 60398451 73820329 80531268 107375024 120796902 147640658 161062536 181195353 221460987 241593804 295281316 322125072 362390706 442921974 483187608 590562632 664382961 724781412 885843948 966375216 1181125264 1328765922 1449562824 1771687896 1993148883 2657531844 2899125648 3543375792 3986297766 5315063688 7972595532 10630127376 15945191064 31890382128
• Sum of all divisors σ(n): 99937889280
• Sum of proper divisors (its aliquot sum) s(n): 68047507152
• 31890382128 is an abundant number, because the sum of its proper divisors (68047507152) is greater than itself. Its abundance is 36157125024

Bases of 31890382128

• Binary: 11101101100110100001001110100110000₂
• Hexadecimal: 0x76CD09D30
• Base-36: ENEPKC0

Squares and roots of 31890382128

• 31890382128 squared (31890382128²) is 1016996472269861808384
• 31890382128 cubed (31890382128³) is 32432406123513848607118874161152
• The square root of 31890382128 is 178578.7840926241
• The cube root of 31890382128 is 3171.1727998675

Scales and comparisons

• 31,890,382,128 seconds is equal to 1,014 years, 5 days, 15 hours, 28 minutes, 48 seconds.
• To count from 1 to 31,890,382,128 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 31890382128 cubic inches would be around 264.3 feet tall.

Recreational maths with 31890382128

• 31890382128 backwards is 82128309813
• The number of decimal digits it has is: 11
• The sum of 31890382128's digits is 45
• More coming soon!