15493742640

Names of 15493742640

• Cardinal: 15493742640 can be written as Fifteen billion, four hundred ninety-three million, seven hundred forty-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.549374264 × 10¹⁰

Factors of 15493742640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 7173039

Divisors of 15493742640

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 108 120 135 144 180 216 240 270 360 432 540 720 1080 2160 7173029 14346058 21519087 28692116 35865145 43038174 57384232 64557261 71730290 86076348 107595435 114768464 129114522 143460580 172152696 193671783 215190870 258229044 286921160 322786305 344305392 387343566 430381740 516458088 573842320 645572610 774687132 860763480 968358915 1032916176 1291145220 1549374264 1721526960 1936717830 2582290440 3098748528 3873435660 5164580880 7746871320 15493742640
• Sum of all divisors σ(n): 53367343200
• Sum of proper divisors (its aliquot sum) s(n): 37873600560
• 15493742640 is an abundant number, because the sum of its proper divisors (37873600560) is greater than itself. Its abundance is 22379857920

Bases of 15493742640

• Binary: 1110011011011111111100000000110000₂
• Hexadecimal: 0x39B7FC030
• Base-36: 748KOC0

Squares and roots of 15493742640

• 15493742640 squared (15493742640²) is 240056060994554169600
• 15493742640 cubed (15493742640³) is 3719366828221764745321311744000
• The square root of 15493742640 is 124473.8632806101
• The cube root of 15493742640 is 2492.9799132709

Scales and comparisons

• 15,493,742,640 seconds is equal to 492 years, 33 weeks, 6 days, 17 hours, 24 minutes.
• To count from 1 to 15,493,742,640 would take you about nine hundred eighty-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 15493742640 cubic inches would be around 207.7 feet tall.

Recreational maths with 15493742640

• 15493742640 backwards is 04624739451
• 15493742640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 15493742640's digits is 45
• More coming soon!