21087132976

Names of 21087132976

• Cardinal: 21087132976 can be written as Twenty-one billion, eighty-seven million, one hundred thirty-two thousand, nine hundred seventy-six.

Scientific notation

• Scientific notation: 2.1087132976 × 10¹⁰

Factors of 21087132976

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 506

Divisors of 21087132976

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 7 8 13 14 16 19 26 28 31 38 52 56 62 67 76 91 104 112 124 133 134 152 182 208 217 247 248 266 268 304 364 367 403 434 469 494 496 532 536 589 728 734 806 868 871 938 988 1064 1072 1178 1273 1456 1468 1612 1729 1736 1742 1876 1976 2077 2128 2356 2546 2569 2821 2936 3224 3458 3472 3484 3752 3952 4123 4154 4712 4771 5092 5138 5642 5872 6097 6448 6916 6968 6973 7504 7657 8246 8308 8911 9424 9542 10184 10276 11284 11377 12194 13832 13936 13946 14539 15314 16492 16549 16616 17822 19084 20368 20552 22568 22754 24388 24589 27001 27664 27892 29078 30628 32984 33098 33232 33397 35644 38168 39463 41104 45136 45508 48776 48811 49178 53599 54002 55784 58156 61256 65968 66196 66794 71288 76336 78926 79639 90649 91016 97552 97622 98356 107198 108004 111568 115843 116312 122512 132392 133588 142576 147901 157852 159278 172123 181298 182032 189007 195244 196712 214396 216008 216163 231686 232624 264784 267176 276241 295802 315704 318556 319657 344246 362596 378014 390488 393424 428792 432016 432326 463372 467191 513019 534352 552482 591604 631408 634543 637112 639314 688492 725192 756028 762259 780976 857584 864652 926744 934382 1026038 1035307 1104964 1183208 1269086 1274224 1278628 1376984 1450384 1512056 1513141 1524518 1729304 1853488 1868764 2052076 2070614 2209928 2237599 2366416 2538172 2557256 2753968 2810119 3024112 3026282 3049036 3270337 3458608 3591133 3737528 4104152 4141228 4419856 4475198 5076344 5114512 5335813 5620238 6052564 6073483 6098072 6540674 7182266 7475056 8208304 8282456 8950396 9909367 10152688 10671626 11240476 12105128 12146966 12196144 13081348 14364532 14482921 16564912 17900792 19670833 19818734 21343252 22480952 24210256 24293932 26162696 28729064 28965842 35801584 39341666 39637468 42514381 42686504 44961904 48587864 52325392 57458128 57931684 69365569 78683332 79274936 85028762 85373008 97175728 101380447 115863368 138731138 157366664 158549872 170057524 188277973 202760894 231726736 277462276 314733328 340115048 376555946 405521788 554924552 680230096 753111892 811043576 1109849104 1317945811 1506223784 1622087152 2635891622 3012447568 5271783244 10543566488 21087132976
• Sum of all divisors σ(n): 55605329920
• Sum of proper divisors (its aliquot sum) s(n): 34518196944
• 21087132976 is an abundant number, because the sum of its proper divisors (34518196944) is greater than itself. Its abundance is 13431063968

Bases of 21087132976

• Binary: 10011101000111001000001110100110000₂
• Hexadecimal: 0x4E8E41D30
• Base-36: 9OQQFXS

Squares and roots of 21087132976

• 21087132976 squared (21087132976²) is 444667177147506616576
• 21087132976 cubed (21087132976³) is 9376755894572020390577957810176
• The square root of 21087132976 is 145214.0935859877
• The cube root of 21087132976 is 2762.7346773217

Scales and comparisons

• 21,087,132,976 seconds is equal to 670 years, 26 weeks, 2 days, 56 minutes, 16 seconds.
• To count from 1 to 21,087,132,976 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 21087132976 cubic inches would be around 230.2 feet tall.

Recreational maths with 21087132976

• 21087132976 backwards is 67923178012
• The number of decimal digits it has is: 11
• The sum of 21087132976's digits is 46
• More coming soon!