21499468788

Names of 21499468788

• Cardinal: 21499468788 can be written as Twenty-one billion, four hundred ninety-nine million, four hundred sixty-eight thousand, seven hundred eighty-eight.

Scientific notation

• Scientific notation: 2.1499468788 × 10¹⁰

Factors of 21499468788

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1012

Divisors of 21499468788

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 12 14 21 28 37 42 61 74 84 111 122 148 151 183 222 244 259 302 366 427 444 453 518 604 732 751 777 854 906 1036 1057 1281 1502 1554 1708 1812 2114 2253 2257 2562 3004 3108 3171 4228 4506 4514 5124 5257 5587 6342 6771 9012 9028 9211 10514 11174 12684 13542 15771 15799 16761 18422 21028 22348 27084 27633 27787 31542 31598 33522 36844 39109 45811 47397 55266 55574 63084 63196 64477 67044 78218 83361 91622 94794 110532 111148 113401 117327 128954 137433 156436 166722 183244 189588 193431 194509 226802 234654 257908 274866 320677 333444 340203 340807 386862 389018 453604 469308 549732 583527 641354 680406 681614 773724 778036 793807 962031 1022421 1167054 1282708 1360812 1363228 1587614 1695007 1924062 2044842 2334108 2381421 2385649 3175228 3390014 3848124 4089684 4195837 4762842 4771298 5085021 6780028 6917461 7156947 8391674 9525684 9542596 10170042 11865049 12587511 13834922 14313894 16783348 20340084 20752383 23730098 25175022 27669844 28627788 29370859 35595147 41504766 47460196 48422227 50350044 58741718 71190294 83009532 88112577 96844454 117483436 142380588 145266681 176225154 193688908 255946057 290533362 352450308 511892114 581066724 767838171 1023784228 1535676342 1791622399 3071352684 3583244798 5374867197 7166489596 10749734394 21499468788
• Sum of all divisors σ(n): 60323250176
• Sum of proper divisors (its aliquot sum) s(n): 38823781388
• 21499468788 is an abundant number, because the sum of its proper divisors (38823781388) is greater than itself. Its abundance is 17324312600

Bases of 21499468788

• Binary: 10100000001011101111101101111110100₂
• Hexadecimal: 0x50177DBF4
• Base-36: 9VK88AC

Squares and roots of 21499468788

• 21499468788 squared (21499468788²) is 462227158166186188944
• 21499468788 cubed (21499468788³) is 9937638359959859286198198679872
• The square root of 21499468788 is 146626.9715570775
• The cube root of 21499468788 is 2780.6259820789

Scales and comparisons

• 21,499,468,788 seconds is equal to 683 years, 32 weeks, 10 hours, 39 minutes, 48 seconds.
• To count from 1 to 21,499,468,788 would take you about one thousand, three hundred sixty-seven 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 21499468788 cubic inches would be around 231.7 feet tall.

Recreational maths with 21499468788

• 21499468788 backwards is 88786499412
• The number of decimal digits it has is: 11
• The sum of 21499468788's digits is 66
• More coming soon!