12391001440

Names of 12391001440

• Cardinal: 12391001440 can be written as Twelve billion, three hundred ninety-one million, one thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.239100144 × 10¹⁰

Factors of 12391001440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 433

Divisors of 12391001440

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 53 67 80 106 113 134 160 193 212 226 265 268 335 386 424 452 530 536 565 670 772 848 904 965 1060 1072 1130 1340 1544 1696 1808 1930 2120 2144 2260 2680 3088 3551 3616 3860 4240 4520 5360 5989 6176 7102 7571 7720 8480 9040 10229 10720 11978 12931 14204 15142 15440 17755 18080 20458 21809 23956 25862 28408 29945 30284 30880 35510 37855 40916 43618 47912 51145 51724 56816 59890 60568 64655 71020 75710 81832 87236 95824 102290 103448 109045 113632 119780 121136 129310 142040 151420 163664 174472 191648 204580 206896 218090 239560 242272 258620 284080 302840 327328 348944 401263 409160 413792 436180 479120 517240 568160 605680 685343 697888 802526 818320 872360 958240 1034480 1155877 1211360 1370686 1461203 1605052 1636640 1744720 2006315 2068960 2311754 2741372 2922406 3210104 3426715 3489440 4012630 4623508 5482744 5779385 5844812 6420208 6853430 7306015 8025260 9247016 10965488 11558770 11689624 12840416 13706860 14612030 16050520 18494032 21930976 23117540 23379248 27413720 29224060 32101040 36988064 46235080 46758496 54827440 58448120 64202080 77443759 92470160 109654880 116896240 154887518 184940320 233792480 309775036 387218795 619550072 774437590 1239100144 1548875180 2478200288 3097750360 6195500720 12391001440
• Sum of all divisors σ(n): 30697361856
• Sum of proper divisors (its aliquot sum) s(n): 18306360416
• 12391001440 is an abundant number, because the sum of its proper divisors (18306360416) is greater than itself. Its abundance is 5915358976

Bases of 12391001440

• Binary: 1011100010100011111010110101100000₂
• Hexadecimal: 0x2E28FAD60
• Base-36: 5OXA5WG

Squares and roots of 12391001440

• 12391001440 squared (12391001440²) is 153536916686082073600
• 12391001440 cubed (12391001440³) is 1902476155750403001935785984000
• The square root of 12391001440 is 111314.8751964445
• The cube root of 12391001440 is 2314.0290274093

Scales and comparisons

• 12,391,001,440 seconds is equal to 393 years, 51 weeks, 5 days, 8 hours, 50 minutes, 40 seconds.
• To count from 1 to 12,391,001,440 would take you about seven hundred eighty-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 12391001440 cubic inches would be around 192.8 feet tall.

Recreational maths with 12391001440

• 12391001440 backwards is 04410019321
• The number of decimal digits it has is: 11
• The sum of 12391001440's digits is 25
• More coming soon!