18345375872

Names of 18345375872

• Cardinal: 18345375872 can be written as Eighteen billion, three hundred forty-five million, three hundred seventy-five thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.8345375872 × 10¹⁰

Factors of 18345375872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1030

Divisors of 18345375872

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 8 16 29 32 41 58 64 82 116 128 149 164 232 298 328 464 596 656 809 928 1189 1192 1312 1618 1856 2378 2384 2624 3236 3712 4321 4756 4768 5248 6109 6472 8642 9512 9536 12218 12944 17284 19024 19072 23461 24436 25888 33169 34568 38048 46922 48872 51776 66338 69136 76096 93844 97744 103552 120541 132676 138272 152192 177161 187688 195488 241082 265352 276544 354322 375376 390976 482164 530704 553088 708644 750752 781952 961901 964328 1061408 1417288 1501504 1923802 1928656 2122816 2834576 3003008 3495689 3847604 3857312 4245632 4942181 5669152 6991378 7695208 7714624 9884362 11338304 13982756 15390416 15429248 19768724 22676608 27965512 30780832 39537448 55931024 61561664 79074896 111862048 123123328 143323249 158149792 223724096 286646498 316299584 447448192 573292996 632599168 1146585992 2293171984 4586343968 9172687936 18345375872
• Sum of all divisors σ(n): 39037950000
• Sum of proper divisors (its aliquot sum) s(n): 20692574128
• 18345375872 is an abundant number, because the sum of its proper divisors (20692574128) is greater than itself. Its abundance is 2347198256

Bases of 18345375872

• Binary: 10001000101011110000011100010000000₂
• Hexadecimal: 0x445783880
• Base-36: 8FED2M8

Squares and roots of 18345375872

• 18345375872 squared (18345375872²) is 336552815884959760384
• 18345375872 cubed (18345375872³) is 6174187908189599115839535054848
• The square root of 18345375872 is 135445.1027981447
• The cube root of 18345375872 is 2637.3971836923

Scales and comparisons

• 18,345,375,872 seconds is equal to 583 years, 16 weeks, 6 days, 17 hours, 44 minutes, 32 seconds.
• To count from 1 to 18,345,375,872 would take you about one thousand, one hundred sixty-six 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 18345375872 cubic inches would be around 219.8 feet tall.

Recreational maths with 18345375872

• 18345375872 backwards is 27857354381
• The number of decimal digits it has is: 11
• The sum of 18345375872's digits is 53
• More coming soon!