21137588208

Names of 21137588208

• Cardinal: 21137588208 can be written as Twenty-one billion, one hundred thirty-seven million, five hundred eighty-eight thousand, two hundred eight.

Scientific notation

• Scientific notation: 2.1137588208 × 10¹⁰

Factors of 21137588208

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1559

Divisors of 21137588208

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 29 33 36 44 48 58 66 72 87 88 99 116 132 144 174 176 198 232 261 264 319 348 396 421 464 522 528 638 696 792 842 957 1044 1093 1263 1276 1392 1584 1684 1914 2088 2186 2526 2552 2871 3279 3368 3789 3828 4176 4372 4631 5052 5104 5742 6558 6736 7578 7656 8744 9262 9837 10104 11484 12023 12209 13116 13893 15156 15312 17488 18524 19674 20208 22968 24046 24418 26232 27786 30312 31697 36069 36627 37048 39348 41679 45936 48092 48836 52464 55572 60624 63394 72138 73254 74096 78696 83358 95091 96184 97672 108207 109881 111144 126788 134299 144276 146508 157392 166716 190182 192368 195344 216414 219762 222288 253576 268598 285273 288552 293016 333432 348667 380364 402897 432828 439524 460153 507152 537196 570546 577104 586032 666864 697334 760728 805794 865656 879048 920306 1046001 1074392 1141092 1208691 1380459 1394668 1521456 1611588 1731312 1758096 1840612 2092002 2148784 2282184 2417382 2760918 2789336 3138003 3223176 3681224 4141377 4184004 4564368 4834764 5061683 5521836 5578672 6276006 6446352 7362448 8282754 8368008 9669528 10123366 11043672 12552012 13344437 15185049 16565508 16736016 19339056 20246732 22087344 25104024 26688874 30370098 33131016 40033311 40493464 45555147 50208048 53377748 60740196 66262032 80066622 80986928 91110294 106755496 120099933 121480392 146788807 160133244 182220588 213510992 240199866 242960784 293577614 320266488 364441176 440366421 480399732 587155228 640532976 728882352 880732842 960799464 1174310456 1321099263 1761465684 1921598928 2348620912 2642198526 3522931368 5284397052 7045862736 10568794104 21137588208
• Sum of all divisors σ(n): 66978793440
• Sum of proper divisors (its aliquot sum) s(n): 45841205232
• 21137588208 is an abundant number, because the sum of its proper divisors (45841205232) is greater than itself. Its abundance is 24703617024

Bases of 21137588208

• Binary: 10011101011111001011111111111110000₂
• Hexadecimal: 0x4EBE5FFF0
• Base-36: 9PKRVG0

Squares and roots of 21137588208

• 21137588208 squared (21137588208²) is 446797635250980651264
• 21137588208 cubed (21137588208³) is 9444224426243413734594086694912
• The square root of 21137588208 is 145387.7168401787
• The cube root of 21137588208 is 2764.9363894649

Scales and comparisons

• 21,137,588,208 seconds is equal to 672 years, 5 weeks, 5 days, 16 minutes, 48 seconds.
• To count from 1 to 21,137,588,208 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 21137588208 cubic inches would be around 230.4 feet tall.

Recreational maths with 21137588208

• 21137588208 backwards is 80288573112
• The number of decimal digits it has is: 11
• The sum of 21137588208's digits is 45
• More coming soon!