21234987312

Names of 21234987312

• Cardinal: 21234987312 can be written as Twenty-one billion, two hundred thirty-four million, nine hundred eighty-seven thousand, three hundred twelve.

Scientific notation

• Scientific notation: 2.1234987312 × 10¹⁰

Factors of 21234987312

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3229

Divisors of 21234987312

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 33 37 42 44 48 49 56 66 74 77 84 88 98 111 112 132 147 148 154 168 176 196 222 231 259 264 294 296 308 336 343 392 407 444 462 518 528 539 588 592 616 686 777 784 814 888 924 1029 1036 1078 1176 1221 1232 1372 1554 1617 1628 1776 1813 1848 2058 2072 2156 2352 2442 2744 2849 3108 3169 3234 3256 3626 3696 3773 4116 4144 4312 4884 5439 5488 5698 6216 6338 6468 6512 7252 7546 8232 8547 8624 9507 9768 10878 11319 11396 12432 12676 12691 12936 14504 15092 16464 17094 19014 19536 19943 21756 22183 22638 22792 25352 25382 25872 29008 30184 34188 34859 38028 38073 39886 43512 44366 45276 45584 50704 50764 59829 60368 66549 68376 69718 76056 76146 79772 87024 88732 90552 101528 104577 117253 119658 133098 136752 139436 139601 152112 152292 155281 159544 177464 181104 203056 209154 234506 239316 244013 266196 278872 279202 304584 310562 319088 351759 354928 418308 418803 465843 469012 478632 488026 532392 557744 558404 609168 621124 703518 732039 820771 836616 837606 931686 938024 957264 976052 1064784 1086967 1116808 1242248 1289783 1407036 1464078 1641542 1673232 1675212 1708091 1863372 1876048 1952104 2173934 2233616 2462313 2484496 2579566 2814072 2928156 3260901 3283084 3350424 3416182 3726744 3869349 3904208 4347868 4924626 5124273 5159132 5628144 5745397 5856312 6521802 6566168 6700848 6832364 7453488 7738698 8695736 9028481 9849252 10248546 10318264 11490794 11712624 11956637 13043604 13132336 13664728 15477396 17236191 17391472 18056962 19698504 20497092 20636528 22981588 23913274 26087208 27085443 27329456 30954792 34472382 35869911 36113924 39397008 40217779 40994184 45963176 47826548 52174416 54170886 61909584 63199367 68944764 71739822 72227848 80435558 81988368 91926352 95653096 108341772 120653337 126398734 137889528 143479644 144455696 160871116 189598101 191306192 216683544 241306674 252797468 275779056 286959288 321742232 379196202 433367088 442395569 482613348 505594936 573918576 643484464 758392404 884791138 965226696 1011189872 1327186707 1516784808 1769582276 1930453392 2654373414 3033569616 3539164552 5308746828 7078329104 10617493656 21234987312
• Sum of all divisors σ(n): 71697792000
• Sum of proper divisors (its aliquot sum) s(n): 50462804688
• 21234987312 is an abundant number, because the sum of its proper divisors (50462804688) is greater than itself. Its abundance is 29227817376

Bases of 21234987312

• Binary: 10011110001101101000011000100110000₂
• Hexadecimal: 0x4F1B43130
• Base-36: 9R6RH2O

Squares and roots of 21234987312

• 21234987312 squared (21234987312²) is 450924686140800985344
• 21234987312 cubed (21234987312³) is 9575379988867491169296937955328
• The square root of 21234987312 is 145722.2951781915
• The cube root of 21234987312 is 2769.1766989377

Scales and comparisons

• 21,234,987,312 seconds is equal to 675 years, 10 weeks, 5 days, 7 hours, 35 minutes, 12 seconds.
• To count from 1 to 21,234,987,312 would take you about one thousand, three hundred fifty 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 21234987312 cubic inches would be around 230.8 feet tall.

Recreational maths with 21234987312

• 21234987312 backwards is 21378943212
• 21234987312 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21234987312's digits is 42
• More coming soon!