21399566848

Names of 21399566848

• Cardinal: 21399566848 can be written as Twenty-one billion, three hundred ninety-nine million, five hundred sixty-six thousand, eight hundred forty-eight.

Scientific notation

• Scientific notation: 2.1399566848 × 10¹⁰

Factors of 21399566848

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 6514

Divisors of 21399566848

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 8 11 16 19 22 31 32 38 44 62 64 76 88 124 128 152 176 209 248 256 304 341 352 418 496 512 589 608 682 704 836 992 1178 1216 1364 1408 1672 1984 2356 2432 2728 2816 3344 3968 4712 4864 5456 5632 6451 6479 6688 7936 9424 9728 10912 12902 12958 13376 15872 18848 21824 25804 25916 26752 37696 43648 51608 51832 53504 70961 75392 87296 103216 103664 107008 122569 141922 150784 174592 199981 206432 207328 245138 283844 301568 399962 412864 414656 490276 567688 799924 825728 829312 980552 1135376 1348259 1599848 1651456 1658624 1961104 2199791 2270752 2696518 3199696 3302912 3317248 3799639 3922208 4399582 4541504 5393036 6399392 7599278 7844416 8799164 9083008 10786072 12798784 15198556 15688832 17598328 18166016 21572144 25597568 30397112 31377664 35196656 36332032 41796029 43144288 51195136 60794224 62755328 70393312 83592058 86288576 102390272 121588448 140786624 167184116 172577152 243176896 281573248 334368232 345154304 486353792 563146496 668736464 690308608 972707584 1126292992 1337472928 1945415168 2674945856 5349891712 10699783424 21399566848
• Sum of all divisors σ(n): 50691041280
• Sum of proper divisors (its aliquot sum) s(n): 29291474432
• 21399566848 is an abundant number, because the sum of its proper divisors (29291474432) is greater than itself. Its abundance is 7891907584

Bases of 21399566848

• Binary: 10011111011100000110111101000000000₂
• Hexadecimal: 0x4FB837A00
• Base-36: 9TWQZGG

Squares and roots of 21399566848

• 21399566848 squared (21399566848²) is 457941461282020655104
• 21399566848 cubed (21399566848³) is 9799748913175404789414800392192
• The square root of 21399566848 is 146285.9078927291
• The cube root of 21399566848 is 2776.3123667467

Scales and comparisons

• 21,399,566,848 seconds is equal to 680 years, 22 weeks, 6 days, 4 hours, 7 minutes, 28 seconds.
• To count from 1 to 21,399,566,848 would take you about one thousand, three hundred sixty 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 21399566848 cubic inches would be around 231.4 feet tall.

Recreational maths with 21399566848

• 21399566848 backwards is 84866599312
• The number of decimal digits it has is: 11
• The sum of 21399566848's digits is 61
• More coming soon!