21399641024

Names of 21399641024

• Cardinal: 21399641024 can be written as Twenty-one billion, three hundred ninety-nine million, six hundred forty-one thousand and twenty-four.

Scientific notation

• Scientific notation: 2.1399641024 × 10¹⁰

Factors of 21399641024

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 91

Divisors of 21399641024

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 8 16 19 29 32 38 41 58 64 76 82 116 152 164 232 304 328 361 464 551 608 656 722 779 928 1102 1189 1216 1312 1444 1558 1681 1856 2204 2378 2624 2888 3116 3362 4408 4756 5776 6232 6724 6859 8816 9512 10469 11552 12464 13448 13718 14801 17632 19024 20938 22591 23104 24928 26896 27436 29602 31939 35264 38048 41876 45182 48749 49856 53792 54872 59204 63878 76096 83752 90364 97498 107584 109744 118408 127756 167504 180728 194996 198911 219488 236816 255512 281219 335008 361456 389992 397822 429229 438976 473632 511024 562438 606841 670016 722912 779984 795644 858458 926231 947264 1022048 1124876 1213682 1445824 1559968 1591288 1716916 1852462 2044096 2249752 2427364 3119936 3182576 3433832 3704924 4499504 4854728 6365152 6867664 7409848 8155351 8999008 9709456 11529979 12730304 13735328 14819696 16310702 17598389 17998016 19418912 23059958 27470656 29639392 32621404 35196778 38837824 46119916 59278784 65242808 70393556 92239832 130485616 140787112 184479664 260971232 281574224 334369391 368959328 521942464 563148448 668738782 737918656 1126296896 1337477564 2674955128 5349910256 10699820512 21399641024
• Sum of all divisors σ(n): 47527921200
• Sum of proper divisors (its aliquot sum) s(n): 26128280176
• 21399641024 is an abundant number, because the sum of its proper divisors (26128280176) is greater than itself. Its abundance is 4728639152

Bases of 21399641024

• Binary: 10011111011100001001001101111000000₂
• Hexadecimal: 0x4FB849BC0
• Base-36: 9TWSKOW

Squares and roots of 21399641024

• 21399641024 squared (21399641024²) is 457944635956063768576
• 21399641024 cubed (21399641024³) is 9799850818326127683579011661824
• The square root of 21399641024 is 146286.1614234237
• The cube root of 21399641024 is 2776.3155745299

Scales and comparisons

• 21,399,641,024 seconds is equal to 680 years, 23 weeks, 43 minutes, 44 seconds.
• To count from 1 to 21,399,641,024 would take you about one thousand, three hundred sixty 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 21399641024 cubic inches would be around 231.4 feet tall.

Recreational maths with 21399641024

• 21399641024 backwards is 42014699312
• 21399641024 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21399641024's digits is 41
• More coming soon!