21381102011904

Names of 21381102011904

• Cardinal: 21381102011904 can be written as Twenty-one trillion, three hundred eighty-one billion, one hundred two million, eleven thousand, nine hundred four.

Scientific notation

• Scientific notation: 2.1381102011904 × 10¹³

Factors of 21381102011904

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1061

Divisors of 21381102011904

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 127 128 192 254 256 381 384 508 512 762 768 929 1016 1524 1536 1858 2032 2787 3048 3716 4064 5574 6096 7432 8128 11148 12192 14864 16129 16256 22296 24384 29728 32258 32512 44592 48387 48768 59456 64516 65024 89184 96774 97536 117983 118912 129032 178368 193548 195072 235966 237824 258064 353949 356736 387096 471932 475648 516128 707898 713472 774192 863041 943864 1032256 1415796 1426944 1548384 1726082 1887728 2064512 2589123 2831592 3096768 3452164 3775456 4129024 5178246 5663184 6193536 6904328 7550912 8258048 10356492 11326368 12387072 13808656 14983841 15101824 20712984 22652736 24774144 27617312 29967682 30203648 41425968 44951523 45305472 55234624 59935364 60407296 82851936 89903046 90610944 109606207 110469248 119870728 165703872 179806092 181221888 219212414 220938496 239741456 328818621 331407744 359612184 438424828 441876992 479482912 657637242 662815488 719224368 876849656 958965824 1315274484 1325630976 1438448736 1753699312 1917931648 2630548968 2876897472 3507398624 3835863296 5261097936 5753794944 7014797248 7671726592 10522195872 11507589888 13919988289 14029594496 21044391744 23015179776 27839976578 28059188992 41759964867 42088783488 55679953156 56118377984 83519929734 84177566976 111359906312 167039859468 168355133952 222719812624 334079718936 445439625248 668159437872 890879250496 1336318875744 1781758500992 2672637751488 3563517001984 5345275502976 7127034003968 10690551005952 21381102011904
• Sum of all divisors σ(n): 57474499230324
• Sum of proper divisors (its aliquot sum) s(n): 36093397218420
• 21381102011904 is an abundant number, because the sum of its proper divisors (36093397218420) is greater than itself. Its abundance is 14712295206516

Bases of 21381102011904

• Binary: 100110111001000101100111111011000011000000000₂
• Hexadecimal: 0x13722CFD8600
• Base-36: 7KUCC3E2O

Squares and roots of 21381102011904

• 21381102011904 squared (21381102011904²) is 457151523243445276557705216
• 21381102011904 cubed (21381102011904³) is 9774403353365406022188476681370954891264
• The square root of 21381102011904 is 4623970.3731646031
• The cube root of 21381102011904 is 27755.1361374959

Scales and comparisons

• 21,381,102,011,904 seconds is equal to 679,852 years, 47 weeks, 1 day, 11 hours, 18 minutes, 24 seconds.
• To count from 1 to 21,381,102,011,904 would take you about one million, six hundred ninety-nine thousand, six hundred thirty-two 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 21381102011904 cubic inches would be around 2312.9 feet tall.

Recreational maths with 21381102011904

• 21381102011904 backwards is 40911020118312
• The number of decimal digits it has is: 14
• The sum of 21381102011904's digits is 33
• More coming soon!