13215813912

Names of 13215813912

• Cardinal: 13215813912 can be written as Thirteen billion, two hundred fifteen million, eight hundred thirteen thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 1.3215813912 × 10¹⁰

Factors of 13215813912

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 4632

Divisors of 13215813912

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 49 56 63 72 84 98 126 147 168 196 252 294 392 441 504 588 882 1049 1176 1764 2098 3147 3528 3571 4196 6294 7142 7343 8392 9441 10713 12588 14284 14686 18882 21426 22029 24997 25176 28568 29372 32139 37764 42852 44058 49994 51401 58744 64278 66087 74991 75528 85704 88116 99988 102802 128556 132174 149982 154203 174979 176232 199976 205604 224973 257112 264348 299964 308406 349958 411208 449946 462609 524937 528696 599928 616812 699916 899892 925218 1049874 1233624 1399832 1574811 1799784 1850436 2099748 3149622 3700872 3745979 4199496 6299244 7491958 11237937 12598488 14983916 22475874 26221853 29967832 33713811 44951748 52443706 67427622 78665559 89903496 104887412 134855244 157331118 183552971 209774824 235996677 269710488 314662236 367105942 471993354 550658913 629324472 734211884 943986708 1101317826 1468423768 1651976739 1887973416 2202635652 3303953478 4405271304 6607906956 13215813912
• Sum of all divisors σ(n): 41687919000
• Sum of proper divisors (its aliquot sum) s(n): 28472105088
• 13215813912 is an abundant number, because the sum of its proper divisors (28472105088) is greater than itself. Its abundance is 15256291176

Bases of 13215813912

• Binary: 1100010011101110010101000100011000₂
• Hexadecimal: 0x313B95118
• Base-36: 62KCRA0

Squares and roots of 13215813912

• 13215813912 squared (13215813912²) is 174657737356612743744
• 13215813912 cubed (13215813912³) is 2308244155195964803968446166528
• The square root of 13215813912 is 114960.0535490481
• The cube root of 13215813912 is 2364.2748999633

Scales and comparisons

• 13,215,813,912 seconds is equal to 420 years, 11 weeks, 3 days, 19 hours, 25 minutes, 12 seconds.
• To count from 1 to 13,215,813,912 would take you about eight hundred forty 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 13215813912 cubic inches would be around 197 feet tall.

Recreational maths with 13215813912

• 13215813912 backwards is 21931851231
• 13215813912 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13215813912's digits is 36
• More coming soon!