21312245318

Names of 21312245318

• Cardinal: 21312245318 can be written as Twenty-one billion, three hundred twelve million, two hundred forty-five thousand, three hundred eighteen.

Scientific notation

• Scientific notation: 2.1312245318 × 10¹⁰

Factors of 21312245318

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1837

Divisors of 21312245318

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 7 13 14 19 26 38 49 73 91 98 133 146 182 247 266 343 494 511 637 686 931 949 1022 1274 1387 1723 1729 1862 1898 2774 3446 3458 3577 4459 6517 6643 7154 8918 9709 12061 12103 13034 13286 18031 19418 22399 24122 24206 25039 32737 36062 44798 46501 50078 65474 67963 84427 84721 93002 125779 126217 135926 156793 168854 169442 229159 251558 252434 313586 325507 425581 458318 475741 590989 651014 851162 880453 883519 951482 1097551 1181978 1604113 1635127 1760906 1767038 2195102 2389801 2979067 3208226 3270254 4779602 5958134 6163171 6184633 7682857 11228791 11445889 12326342 12369266 15365714 16728607 20853469 22457582 22891778 31067413 33457214 41706938 43142197 62134826 80121223 86284394 117100249 145974283 160242446 217471891 234200498 291948566 434943782 560848561 819701743 1121697122 1522303237 1639403486 3044606474 10656122659 21312245318
• Sum of all divisors σ(n): 42865536000
• Sum of proper divisors (its aliquot sum) s(n): 21553290682
• 21312245318 is an abundant number, because the sum of its proper divisors (21553290682) is greater than itself. Its abundance is 241045364

Bases of 21312245318

• Binary: 10011110110010011110000111001000110₂
• Hexadecimal: 0x4F64F0E46
• Base-36: 9SGRDQE

Squares and roots of 21312245318

• 21312245318 squared (21312245318²) is 454211800494612921124
• 21312245318 cubed (21312245318³) is 9680273318471664312447272297432
• The square root of 21312245318 is 145987.1409337137
• The cube root of 21312245318 is 2772.5309452989

Scales and comparisons

• 21,312,245,318 seconds is equal to 677 years, 34 weeks, 3 days, 12 hours, 8 minutes, 38 seconds.
• To count from 1 to 21,312,245,318 would take you about one thousand, three hundred fifty-five 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 21312245318 cubic inches would be around 231 feet tall.

Recreational maths with 21312245318

• 21312245318 backwards is 81354221312
• The number of decimal digits it has is: 11
• The sum of 21312245318's digits is 32
• More coming soon!