21664782832

Names of 21664782832

• Cardinal: 21664782832 can be written as Twenty-one billion, six hundred sixty-four million, seven hundred eighty-two thousand, eight hundred thirty-two.

Scientific notation

• Scientific notation: 2.1664782832 × 10¹⁰

Factors of 21664782832

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 7688

Divisors of 21664782832

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 7 8 11 14 16 19 22 28 38 44 56 76 77 88 112 121 133 152 154 176 209 242 266 304 308 418 484 532 616 836 847 968 1064 1232 1331 1463 1672 1694 1936 2128 2299 2662 2926 3344 3388 4598 5324 5852 6776 7649 9196 9317 10648 11704 13552 15298 16093 18392 18634 21296 23408 25289 30596 32186 36784 37268 50578 53543 61192 64372 74536 84139 101156 107086 122384 128744 145331 149072 168278 177023 202312 214172 257488 290662 336556 354046 404624 428344 581324 588973 673112 708092 856688 925529 1017317 1162648 1177946 1346224 1416184 1598641 1851058 2034634 2325296 2355892 2832368 3197282 3702116 4069268 4711784 6394564 6478703 7404232 8138536 9423568 10180819 11190487 12789128 12957406 14808464 16277072 17585051 20361638 22380974 25578256 25914812 35170102 40723276 44761948 51829624 70340204 71265733 81446552 89523896 103659248 123095357 140680408 142531466 162893104 179047792 193435561 246190714 281360816 285062932 386871122 492381428 570125864 773742244 984762856 1140251728 1354048927 1547484488 1969525712 2708097854 3094968976 5416195708 10832391416 21664782832
• Sum of all divisors σ(n): 55550016000
• Sum of proper divisors (its aliquot sum) s(n): 33885233168
• 21664782832 is an abundant number, because the sum of its proper divisors (33885233168) is greater than itself. Its abundance is 12220450336

Bases of 21664782832

• Binary: 10100001011010100100101100111110000₂
• Hexadecimal: 0x50B5259F0
• Base-36: 9YANHF4

Squares and roots of 21664782832

• 21664782832 squared (21664782832²) is 469362815157721940224
• 21664782832 cubed (21664782832³) is 10168643459808203662794645434368
• The square root of 21664782832 is 147189.6152315101
• The cube root of 21664782832 is 2787.7347367779

Scales and comparisons

• 21,664,782,832 seconds is equal to 688 years, 45 weeks, 2 days, 19 hours, 13 minutes, 52 seconds.
• To count from 1 to 21,664,782,832 would take you about one thousand, three hundred seventy-seven 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 21664782832 cubic inches would be around 232.3 feet tall.

Recreational maths with 21664782832

• 21664782832 backwards is 23828746612
• The number of decimal digits it has is: 11
• The sum of 21664782832's digits is 49
• More coming soon!