12131731640

Names of 12131731640

• Cardinal: 12131731640 can be written as Twelve billion, one hundred thirty-one million, seven hundred thirty-one thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.213173164 × 10¹⁰

Factors of 12131731640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1916

Divisors of 12131731640

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 343 392 490 686 809 980 1093 1372 1618 1715 1960 2186 2744 3236 3430 4045 4372 5465 5663 6472 6860 7651 8090 8744 10930 11326 13720 15302 16180 21860 22652 28315 30604 32360 38255 39641 43720 45304 53557 56630 61208 76510 79282 107114 113260 153020 158564 198205 214228 226520 267785 277487 306040 317128 374899 396410 428456 535570 554974 749798 792820 884237 1071140 1109948 1387435 1499596 1585640 1768474 1874495 2142280 2219896 2774870 2999192 3536948 3748990 4421185 5549740 6189659 7073896 7497980 8842370 11099480 12379318 14995960 17684740 24758636 30948295 35369480 43327613 49517272 61896590 86655226 123793180 173310452 216638065 247586360 303293291 346620904 433276130 606586582 866552260 1213173164 1516466455 1733104520 2426346328 3032932910 6065865820 12131731640
• Sum of all divisors σ(n): 31901040000
• Sum of proper divisors (its aliquot sum) s(n): 19769308360
• 12131731640 is an abundant number, because the sum of its proper divisors (19769308360) is greater than itself. Its abundance is 7637576720

Bases of 12131731640

• Binary: 1011010011000110111000100010111000₂
• Hexadecimal: 0x2D31B88B8
• Base-36: 5KMX41K

Squares and roots of 12131731640

• 12131731640 squared (12131731640²) is 147178912584977089600
• 12131731640 cubed (12131731640³) is 1785535070547960746575434944000
• The square root of 12131731640 is 110144.1402889867
• The cube root of 12131731640 is 2297.7755203321

Scales and comparisons

• 12,131,731,640 seconds is equal to 385 years, 39 weeks, 13 hours, 27 minutes, 20 seconds.
• To count from 1 to 12,131,731,640 would take you about seven hundred seventy-one 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 12131731640 cubic inches would be around 191.5 feet tall.

Recreational maths with 12131731640

• 12131731640 backwards is 04613713121
• The number of decimal digits it has is: 11
• The sum of 12131731640's digits is 29
• More coming soon!