21739708368

Names of 21739708368

• Cardinal: 21739708368 can be written as Twenty-one billion, seven hundred thirty-nine million, seven hundred eight thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1739708368 × 10¹⁰

Factors of 21739708368

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 205

Divisors of 21739708368

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 84 108 112 126 144 168 189 193 216 252 336 378 386 432 504 579 756 772 1008 1158 1351 1512 1544 1737 2316 2702 3024 3088 3474 4053 4632 5211 5404 6948 8106 9264 10422 10808 12159 13896 16212 20844 21616 24318 27792 32424 36477 37249 41688 48636 64848 72954 74498 83376 97272 111747 145908 148996 194544 223494 260743 291816 297992 335241 446988 521486 583632 595984 670482 782229 893976 1005723 1042972 1340964 1564458 1787952 2011446 2085944 2346687 2681928 3128916 4022892 4171888 4693374 5363856 6257832 7040061 7189057 8045784 9386748 12515664 14080122 14378114 16091568 18773496 21567171 28160244 28756228 37546992 43134342 50323399 56320488 57512456 64701513 86268684 100646798 112640976 115024912 129403026 150970197 172537368 194104539 201293596 258806052 301940394 345074736 388209078 402587192 452910591 517612104 603880788 776418156 805174384 905821182 1035224208 1207761576 1358731773 1552836312 1811642364 2415523152 2717463546 3105672624 3623284728 5434927092 7246569456 10869854184 21739708368
• Sum of all divisors σ(n): 71686880000
• Sum of proper divisors (its aliquot sum) s(n): 49947171632
• 21739708368 is an abundant number, because the sum of its proper divisors (49947171632) is greater than itself. Its abundance is 28207463264

Bases of 21739708368

• Binary: 10100001111110010011001111111010000₂
• Hexadecimal: 0x50FC99FD0
• Base-36: 9ZJ9EC0

Squares and roots of 21739708368

• 21739708368 squared (21739708368²) is 472614919925689223424
• 21739708368 cubed (21739708368³) is 10274510529550155948638154412032
• The square root of 21739708368 is 147443.9160087659
• The cube root of 21739708368 is 2790.9447419149

Scales and comparisons

• 21,739,708,368 seconds is equal to 691 years, 13 weeks, 1 day, 23 hours, 52 minutes, 48 seconds.
• To count from 1 to 21,739,708,368 would take you about one thousand, three hundred eighty-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 21739708368 cubic inches would be around 232.6 feet tall.

Recreational maths with 21739708368

• 21739708368 backwards is 86380793712
• 21739708368 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21739708368's digits is 54
• More coming soon!