21380680937440

Names of 21380680937440

• Cardinal: 21380680937440 can be written as Twenty-one trillion, three hundred eighty billion, six hundred eighty million, nine hundred thirty-seven thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.138068093744 × 10¹³

Factors of 21380680937440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 349225

Divisors of 21380680937440

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 32 40 43 44 55 80 86 88 110 160 172 176 215 220 344 352 430 440 473 688 811 860 880 946 1376 1622 1720 1760 1892 2365 3244 3440 3784 4055 4730 6488 6880 7568 8110 8921 9460 12976 15136 16220 17842 18920 25952 32440 34873 35684 37840 44605 64880 69746 71368 75680 89210 129760 139492 142736 174365 178420 278984 285472 348353 348730 356840 383603 557968 696706 697460 713680 767206 1115936 1393412 1394920 1427360 1534412 1741765 1918015 2786824 2789840 3068824 3483530 3831883 3836030 5573648 5579680 6137648 6967060 7663766 7672060 11147296 12275296 13934120 14979179 15327532 15344120 19159415 27868240 29958358 30655064 30688240 38318830 55736480 59916716 61310128 61376480 74895895 76637660 119833432 122620256 149791790 153275320 164770969 239666864 282514283 299583580 306550640 329541938 479333728 565028566 599167160 613101280 659083876 823854845 1130057132 1198334320 1318167752 1412571415 1647709690 2260114264 2396668640 2636335504 2825142830 3107657113 3295419380 4520228528 5272671008 5650285660 6215314226 6590838760 9040457056 11300571320 12148114169 12430628452 13181677520 15538285565 22601142640 24296228338 24861256904 26363355040 31076571130 45202285280 48592456676 49722513808 60740570845 62153142260 97184913352 99445027616 121481141690 124306284520 133629255859 194369826704 242962283380 248612569040 267258511718 388739653408 485924566760 497225138080 534517023436 668146279295 971849133520 1069034046872 1336292558590 1943698267040 2138068093744 2672585117180 4276136187488 5345170234360 10690340468720 21380680937440
• Sum of all divisors σ(n): 56455018405632
• Sum of proper divisors (its aliquot sum) s(n): 35074337468192
• 21380680937440 is an abundant number, because the sum of its proper divisors (35074337468192) is greater than itself. Its abundance is 13693656530752

Bases of 21380680937440

• Binary: 100110111001000010011111001000110111111100000₂
• Hexadecimal: 0x137213E46FE0
• Base-36: 7KU5DEAXS

Squares and roots of 21380680937440

• 21380680937440 squared (21380680937440²) is 457133517348610197193753600
• 21380680937440 cubed (21380680937440³) is 9773825880240327574217686977760374784000
• The square root of 21380680937440 is 4623924.8412403937
• The cube root of 21380680937440 is 27754.9539352287

Scales and comparisons

• 21,380,680,937,440 seconds is equal to 679,839 years, 26 weeks, 6 days, 22 hours, 10 minutes, 40 seconds.
• To count from 1 to 21,380,680,937,440 would take you about one million, six hundred ninety-nine thousand, five hundred ninety-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 21380680937440 cubic inches would be around 2312.9 feet tall.

Recreational maths with 21380680937440

• 21380680937440 backwards is 04473908608312
• 21380680937440 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21380680937440's digits is 55
• More coming soon!