18365974490

Names of 18365974490

• Cardinal: 18365974490 can be written as Eighteen billion, three hundred sixty-five million, nine hundred seventy-four thousand, four hundred ninety.

Scientific notation

• Scientific notation: 1.836597449 × 10¹⁰

Factors of 18365974490

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 11835

Divisors of 18365974490

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 10 23 31 46 62 115 155 223 230 310 446 713 1115 1426 2230 3565 5129 6913 7130 10258 11551 13826 23102 25645 34565 51290 57755 69130 115510 158999 265673 317998 358081 531346 716162 794995 1328365 1589990 1790405 2575873 2656730 3580810 5151746 8235863 12879365 16471726 25758730 41179315 59245079 79852063 82358630 118490158 159704126 296225395 399260315 592450790 798520630 1836597449 3673194898 9182987245 18365974490
• Sum of all divisors σ(n): 35771645952
• Sum of proper divisors (its aliquot sum) s(n): 17405671462
• 18365974490 is a deficient number, because the sum of its proper divisors (17405671462) is less than itself. Its deficiency is 960303028

Bases of 18365974490

• Binary: 10001000110101100101000011111011010₂
• Hexadecimal: 0x446B287DA
• Base-36: 8FQMKM2

Squares and roots of 18365974490

• 18365974490 squared (18365974490²) is 337309018967330760100
• 18365974490 cubed (18365974490³) is 6195008837600922883388909849000
• The square root of 18365974490 is 135521.1219330773
• The cube root of 18365974490 is 2638.3839249295

Scales and comparisons

• 18,365,974,490 seconds is equal to 583 years, 51 weeks, 3 hours, 34 minutes, 50 seconds.
• To count from 1 to 18,365,974,490 would take you about one thousand, one hundred sixty-seven 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 18365974490 cubic inches would be around 219.9 feet tall.

Recreational maths with 18365974490

• 18365974490 backwards is 09447956381
• The number of decimal digits it has is: 11
• The sum of 18365974490's digits is 56
• More coming soon!