21123610924

Names of 21123610924

• Cardinal: 21123610924 can be written as Twenty-one billion, one hundred twenty-three million, six hundred ten thousand, nine hundred twenty-four.

Scientific notation

• Scientific notation: 2.1123610924 × 10¹⁰

Factors of 21123610924

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1789

Divisors of 21123610924

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 13 19 26 31 38 52 62 76 124 247 403 494 589 631 806 988 1093 1178 1262 1612 2186 2356 2524 4372 7657 8203 11989 14209 15314 16406 19561 20767 23978 28418 30628 32812 33883 39122 41534 47956 56836 67766 78244 83068 135532 155857 254293 269971 311714 371659 440479 508586 539942 623428 643777 689683 743318 880958 1017172 1079884 1287554 1379366 1486636 1761916 2575108 2758732 4831567 8369101 8965879 9663134 13103977 16738202 17931758 19326268 21380173 26207954 33476404 35863516 42760346 52415908 85520692 170351701 277942249 340703402 406223287 555884498 681406804 812446574 1111768996 1624893148 5280902731 10561805462 21123610924
• Sum of all divisors σ(n): 43365109760
• Sum of proper divisors (its aliquot sum) s(n): 22241498836
• 21123610924 is an abundant number, because the sum of its proper divisors (22241498836) is greater than itself. Its abundance is 1117887912

Bases of 21123610924

• Binary: 10011101011000100001011100100101100₂
• Hexadecimal: 0x4EB10B92C
• Base-36: 9PCGAI4

Squares and roots of 21123610924

• 21123610924 squared (21123610924²) is 446206938468532133776
• 21123610924 cubed (21123610924³) is 9425501759798481211275742969024
• The square root of 21123610924 is 145339.6398922193
• The cube root of 21123610924 is 2764.3268146757

Scales and comparisons

• 21,123,610,924 seconds is equal to 671 years, 34 weeks, 4 days, 5 hours, 42 minutes, 4 seconds.
• To count from 1 to 21,123,610,924 would take you about one thousand, three hundred forty-three 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 21123610924 cubic inches would be around 230.4 feet tall.

Recreational maths with 21123610924

• 21123610924 backwards is 42901632112
• 21123610924 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21123610924's digits is 31
• More coming soon!