1138165640

Names of 1138165640

• Cardinal: 1138165640 can be written as One billion, one hundred thirty-eight million, one hundred sixty-five thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.13816564 × 10⁹

Factors of 1138165640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 21290

Divisors of 1138165640

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 17 20 34 40 68 79 85 136 158 170 316 340 395 632 680 790 1343 1580 2686 3160 5372 6715 10744 13430 21187 26860 42374 53720 84748 105935 169496 211870 360179 423740 720358 847480 1440716 1673773 1800895 2881432 3347546 3601790 6695092 7203580 8368865 13390184 14407160 16737730 28454141 33475460 56908282 66950920 113816564 142270705 227633128 284541410 569082820 1138165640
• Sum of all divisors σ(n): 2745964800
• Sum of proper divisors (its aliquot sum) s(n): 1607799160
• 1138165640 is an abundant number, because the sum of its proper divisors (1607799160) is greater than itself. Its abundance is 469633520

Bases of 1138165640

• Binary: 1000011110101110000011110001000₂
• Hexadecimal: 0x43D70788
• Base-36: ITMU88

Squares and roots of 1138165640

• 1138165640 squared (1138165640²) is 1295421024076609600
• 1138165640 cubed (1138165640³) is 1474403698937609774414144000
• The square root of 1138165640 is 33736.7105687559
• The cube root of 1138165640 is 1044.0833181207

Scales and comparisons

• 1,138,165,640 seconds is equal to 36 years, 9 weeks, 6 days, 5 hours, 7 minutes, 20 seconds.
• To count from 1 to 1,138,165,640 would take you about seventy-two 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 1138165640 cubic inches would be around 87 feet tall.

Recreational maths with 1138165640

• 1138165640 backwards is 0465618311
• The number of decimal digits it has is: 10
• The sum of 1138165640's digits is 35
• More coming soon!