21139661376

Names of 21139661376

• Cardinal: 21139661376 can be written as Twenty-one billion, one hundred thirty-nine million, six hundred sixty-one thousand, three hundred seventy-six.

Scientific notation

• Scientific notation: 2.1139661376 × 10¹⁰

Factors of 21139661376

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 934

Divisors of 21139661376

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 23 24 32 36 43 46 48 64 69 72 86 92 96 129 138 144 172 184 192 207 258 276 288 344 368 387 414 516 552 576 688 736 774 828 863 989 1032 1104 1376 1472 1548 1656 1726 1849 1978 2064 2208 2589 2752 2967 3096 3312 3452 3698 3956 4128 4416 5178 5547 5934 6192 6624 6904 7396 7767 7912 8256 8901 10356 11094 11868 12384 13248 13808 14792 15534 15824 16641 17802 19849 20712 22188 23736 24768 27616 29584 31068 31648 33282 35604 37109 39698 41424 42527 44376 47472 55232 59168 59547 62136 63296 66564 71208 74218 79396 82848 85054 88752 94944 111327 118336 119094 124272 127581 133128 142416 148436 158792 165696 170108 177504 178641 189888 222654 238188 248544 255162 266256 284832 296872 317584 333981 340216 355008 357282 382743 445308 476376 497088 510324 532512 569664 593744 635168 667962 680432 714564 765486 853507 890616 952752 1020648 1065024 1187488 1270336 1335924 1360864 1429128 1530972 1595687 1707014 1781232 1905504 2041296 2374976 2560521 2671848 2721728 2858256 3061944 3191374 3414028 3562464 3811008 4082592 4787061 5121042 5343696 5716512 6123888 6382748 6828056 7124928 7681563 8165184 9574122 10242084 10687392 11433024 12247776 12765496 13656112 14361183 15363126 19148244 20484168 21374784 24495552 25530992 27312224 28722366 30726252 36700801 38296488 40968336 51061984 54624448 57444732 61452504 73401602 76592976 81936672 102123968 110102403 114889464 122905008 146803204 153185952 163873344 220204806 229778928 245810016 293606408 306371904 330307209 440409612 459557856 491620032 587212816 660614418 880819224 919115712 1174425632 1321228836 1761638448 2348851264 2642457672 3523276896 5284915344 7046553792 10569830688 21139661376
• Sum of all divisors σ(n): 64807112448
• Sum of proper divisors (its aliquot sum) s(n): 43667451072
• 21139661376 is an abundant number, because the sum of its proper divisors (43667451072) is greater than itself. Its abundance is 22527789696

Bases of 21139661376

• Binary: 10011101100000001011010001001000000₂
• Hexadecimal: 0x4EC05A240
• Base-36: 9PM0B40

Squares and roots of 21139661376

• 21139661376 squared (21139661376²) is 446885283091946213376
• 21139661376 cubed (21139661376³) is 9447003558481641223574081765376
• The square root of 21139661376 is 145394.8464561245
• The cube root of 21139661376 is 2765.0267812065

Scales and comparisons

• 21,139,661,376 seconds is equal to 672 years, 9 weeks, 1 day, 9 minutes, 36 seconds.
• To count from 1 to 21,139,661,376 would take you about one thousand, three hundred forty-four 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 21139661376 cubic inches would be around 230.4 feet tall.

Recreational maths with 21139661376

• 21139661376 backwards is 67316693112
• The number of decimal digits it has is: 11
• The sum of 21139661376's digits is 45
• More coming soon!