15991420147904

Names of 15991420147904

• Cardinal: 15991420147904 can be written as Fifteen trillion, nine hundred ninety-one billion, four hundred twenty million, one hundred forty-seven thousand, nine hundred four.

Scientific notation

• Scientific notation: 1.5991420147904 × 10¹³

Factors of 15991420147904

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1164

Divisors of 15991420147904

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 8 16 32 59 64 118 236 472 944 1103 1888 2206 3481 3776 4412 6962 8824 13924 17648 27848 35296 55696 65077 70592 111392 130154 205379 222784 260308 410758 520616 821516 1041232 1216609 1643032 2082464 2433218 3286064 3839543 4164928 4866436 6572128 7679086 9732872 13144256 15358172 19465744 30716344 38931488 61432688 71779931 77862976 122865376 143559862 226533037 245730752 287119724 453066074 574239448 906132148 1148478896 1812264296 2296957792 3624528592 4235015929 4593915584 7249057184 8470031858 14498114368 16940063716 33880127432 67760254864 135520509728 249865939811 271041019456 499731879622 999463759244 1998927518488 3997855036976 7995710073952 15991420147904
• Sum of all divisors σ(n): 32309384194920
• Sum of proper divisors (its aliquot sum) s(n): 16317964047016
• 15991420147904 is an abundant number, because the sum of its proper divisors (16317964047016) is greater than itself. Its abundance is 326543899112

Bases of 15991420147904

• Binary: 11101000101101001010111010101101100011000000₂
• Hexadecimal: 0xE8B4AEAD8C0
• Base-36: 5O2CUO43K

Squares and roots of 15991420147904

• 15991420147904 squared (15991420147904²) is 255725518346789989235593216
• 15991420147904 cubed (15991420147904³) is 4089414206424051435225476634107899019264
• The square root of 15991420147904 is 3998927.3746723633
• The cube root of 15991420147904 is 25193.9160524477

Scales and comparisons

• 15,991,420,147,904 seconds is equal to 508,477 years, 36 weeks, 1 day, 8 hours, 11 minutes, 44 seconds.
• To count from 1 to 15,991,420,147,904 would take you about one million, two hundred seventy-one thousand, one hundred ninety-four 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 15991420147904 cubic inches would be around 2099.5 feet tall.

Recreational maths with 15991420147904

• 15991420147904 backwards is 40974102419951
• The number of decimal digits it has is: 14
• The sum of 15991420147904's digits is 56
• More coming soon!