21057572312

Names of 21057572312

• Cardinal: 21057572312 can be written as Twenty-one billion, fifty-seven million, five hundred seventy-two thousand, three hundred twelve.

Scientific notation

• Scientific notation: 2.1057572312 × 10¹⁰

Factors of 21057572312

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2077

Divisors of 21057572312

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 7 8 14 28 37 43 56 74 86 127 148 172 254 259 296 301 344 508 518 602 889 1016 1036 1204 1591 1778 1861 2072 2408 3182 3556 3722 4699 5461 6364 7112 7444 9398 10922 11137 12728 13027 14888 18796 21844 22274 26054 32893 37592 38227 43688 44548 52108 65786 68857 76454 80023 89096 104216 131572 137714 152908 160046 202057 236347 263144 275428 305816 320092 404114 472694 481999 550856 560161 640184 808228 945388 963998 1120322 1414399 1616456 1654429 1890776 1927996 2240644 2828798 2960851 3308858 3855992 4481288 5657596 5921702 6617716 8744839 10162921 11315192 11843404 13235432 17489678 20325842 20725957 23686808 34979356 40651684 41451914 61213873 69958712 71140447 81303368 82903828 122427746 142280894 165807656 244855492 284561788 376028077 489710984 569123576 752056154 1504112308 2632196539 3008224616 5264393078 10528786156 21057572312
• Sum of all divisors σ(n): 47819735040
• Sum of proper divisors (its aliquot sum) s(n): 26762162728
• 21057572312 is an abundant number, because the sum of its proper divisors (26762162728) is greater than itself. Its abundance is 5704590416

Bases of 21057572312

• Binary: 10011100111001000010000110111011000₂
• Hexadecimal: 0x4E7210DD8
• Base-36: 9O94US8

Squares and roots of 21057572312

• 21057572312 squared (21057572312²) is 443421351675109025344
• 21057572312 cubed (21057572312³) is 9337377177583390631665120675328
• The square root of 21057572312 is 145112.2748495109
• The cube root of 21057572312 is 2761.4431083011

Scales and comparisons

• 21,057,572,312 seconds is equal to 669 years, 29 weeks, 2 days, 21 hours, 38 minutes, 32 seconds.
• To count from 1 to 21,057,572,312 would take you about one thousand, three hundred thirty-nine 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 21057572312 cubic inches would be around 230.1 feet tall.

Recreational maths with 21057572312

• 21057572312 backwards is 21327575012
• The number of decimal digits it has is: 11
• The sum of 21057572312's digits is 35
• More coming soon!