21087316992

Names of 21087316992

• Cardinal: 21087316992 can be written as Twenty-one billion, eighty-seven million, three hundred sixteen thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 2.1087316992 × 10¹⁰

Factors of 21087316992

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 4562

Divisors of 21087316992

• Number of divisors d(n): 264
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 31 32 42 48 49 56 62 64 84 93 96 98 112 124 128 147 168 186 192 196 217 224 248 256 294 336 372 384 392 434 448 496 512 588 651 672 744 768 784 868 896 992 1024 1176 1302 1344 1488 1519 1536 1568 1736 1792 1984 2352 2604 2688 2976 3038 3072 3136 3472 3584 3968 4519 4557 4704 5208 5376 5952 6076 6272 6944 7168 7936 9038 9114 9408 10416 10752 11904 12152 12544 13557 13888 15872 18076 18228 18816 20832 21504 23808 24304 25088 27114 27776 31633 31744 36152 36456 37632 41664 47616 48608 50176 54228 55552 63266 72304 72912 75264 83328 94899 95232 97216 108456 111104 126532 140089 144608 145824 150528 166656 189798 194432 216912 221431 222208 253064 280178 289216 291648 333312 379596 388864 420267 433824 442862 506128 560356 578432 583296 664293 666624 759192 777728 840534 867648 885724 980623 1012256 1120712 1156864 1166592 1328586 1518384 1555456 1681068 1735296 1771448 1961246 2024512 2241424 2313728 2333184 2657172 2941869 3036768 3362136 3470592 3542896 3922492 4049024 4482848 4627456 4666368 5314344 5883738 6073536 6724272 6864361 6941184 7085792 7844984 8098048 8965696 10628688 11767476 12147072 13448544 13728722 13882368 14171584 15689968 16196096 17931392 20593083 21257376 23534952 24294144 26897088 27457444 28343168 31379936 32392192 35862784 41186166 42514752 47069904 48588288 53794176 54914888 56686336 62759872 71725568 82372332 85029504 94139808 97176576 107588352 109829776 113372672 125519744 143451136 164744664 170059008 188279616 215176704 219659552 226745344 251039488 329489328 340118016 376559232 430353408 439319104 502078976 658978656 680236032 753118464 878638208 1004157952 1317957312 1506236928 1757276416 2635914624 3012473856 3514552832 5271829248 7029105664 10543658496 21087316992
• Sum of all divisors σ(n): 67505802240
• Sum of proper divisors (its aliquot sum) s(n): 46418485248
• 21087316992 is an abundant number, because the sum of its proper divisors (46418485248) is greater than itself. Its abundance is 25331168256

Bases of 21087316992

• Binary: 10011101000111001101110110000000000₂
• Hexadecimal: 0x4E8E6EC00
• Base-36: 9OQUDXC

Squares and roots of 21087316992

• 21087316992 squared (21087316992²) is 444674937921091928064
• 21087316992 cubed (21087316992³) is 9377001374339986969858028863488
• The square root of 21087316992 is 145214.7271870177
• The cube root of 21087316992 is 2762.7427135953

Scales and comparisons

• 21,087,316,992 seconds is equal to 670 years, 26 weeks, 4 days, 4 hours, 3 minutes, 12 seconds.
• To count from 1 to 21,087,316,992 would take you about one thousand, three hundred forty-one 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 21087316992 cubic inches would be around 230.2 feet tall.

Recreational maths with 21087316992

• 21087316992 backwards is 29961378012
• 21087316992 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21087316992's digits is 48
• More coming soon!