21246292872

Names of 21246292872

• Cardinal: 21246292872 can be written as Twenty-one billion, two hundred forty-six million, two hundred ninety-two thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.1246292872 × 10¹⁰

Factors of 21246292872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 67918

Divisors of 21246292872

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 23 24 27 28 36 42 46 54 56 63 69 72 81 84 92 108 126 138 161 162 168 184 189 207 216 243 252 276 322 324 378 414 483 486 504 552 567 621 644 648 756 828 966 972 1134 1242 1288 1449 1512 1656 1701 1863 1932 1944 2268 2484 2898 3402 3726 3864 4347 4536 4968 5589 5796 6804 7452 8694 11178 11592 13041 13608 14904 17388 22356 26082 34776 39123 44712 52164 67883 78246 104328 135766 156492 203649 271532 312984 407298 475181 543064 610947 814596 950362 1221894 1425543 1561309 1629192 1832841 1900724 2443788 2851086 3122618 3665682 3801448 4276629 4683927 4887576 5498523 5702172 6245236 7331364 8553258 9367854 10929163 10997046 11404344 12490472 12829887 14051781 14662728 16495569 17106516 18735708 21858326 21994092 25659774 28103562 32787489 32991138 34213032 37471416 38489661 42155343 43716652 43988184 51319548 56207124 65574978 65982276 76979322 84310686 87433304 98362467 102639096 112414248 115468983 126466029 131149956 131964552 153958644 168621372 196724934 230937966 252932058 262299912 295087401 307917288 337242744 379398087 393449868 461875932 505864116 590174802 758796174 786899736 885262203 923751864 1011728232 1180349604 1517592348 1770524406 2360699208 2655786609 3035184696 3541048812 5311573218 7082097624 10623146436 21246292872
• Sum of all divisors σ(n): 71164154880
• Sum of proper divisors (its aliquot sum) s(n): 49917862008
• 21246292872 is an abundant number, because the sum of its proper divisors (49917862008) is greater than itself. Its abundance is 28671569136

Bases of 21246292872

• Binary: 10011110010011000001011001110001000₂
• Hexadecimal: 0x4F260B388
• Base-36: 9RDHSI0

Squares and roots of 21246292872

• 21246292872 squared (21246292872²) is 451404960802798008384
• 21246292872 cubed (21246292872³) is 9590682001089926723184775438848
• The square root of 21246292872 is 145761.0814723875
• The cube root of 21246292872 is 2769.6680506005

Scales and comparisons

• 21,246,292,872 seconds is equal to 675 years, 29 weeks, 3 days, 4 hours, 1 minute, 12 seconds.
• To count from 1 to 21,246,292,872 would take you about one thousand, three hundred fifty-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 21246292872 cubic inches would be around 230.8 feet tall.

Recreational maths with 21246292872

• 21246292872 backwards is 27829264212
• The number of decimal digits it has is: 11
• The sum of 21246292872's digits is 45
• More coming soon!