18506416138

Names of 18506416138

• Cardinal: 18506416138 can be written as Eighteen billion, five hundred six million, four hundred sixteen thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8506416138 × 10¹⁰

Factors of 18506416138

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 45

Divisors of 18506416138

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 7 14 17 19 34 38 49 98 119 133 238 266 289 323 343 578 646 686 833 931 1666 1862 2023 2261 4046 4522 4913 5491 5831 6517 9826 10982 11662 13034 14161 15827 28322 31654 34391 38437 68782 76874 83521 93347 99127 110789 167042 186694 198254 221578 240737 269059 481474 538118 584647 653429 1169294 1306858 1419857 1586899 1685159 1883413 2839714 3173798 3370318 3766826 4092529 4574003 8185058 9148006 9938999 11108293 19877998 22216586 26977283 28647703 32018021 53954566 57295406 64036042 69572993 77758051 139145986 155516102 188840981 377681962 487010951 544306357 974021902 1088612714 1321886867 2643773734 9253208069 18506416138
• Sum of all divisors σ(n): 36206352000
• Sum of proper divisors (its aliquot sum) s(n): 17699935862
• 18506416138 is a deficient number, because the sum of its proper divisors (17699935862) is less than itself. Its deficiency is 806480276

Bases of 18506416138

• Binary: 10001001111000100011000000000001010₂
• Hexadecimal: 0x44F11800A
• Base-36: 8I28Q2Y

Squares and roots of 18506416138

• 18506416138 squared (18506416138²) is 342487438272826835044
• 18506416138 cubed (18506416138³) is 6338215054714521386937745540072
• The square root of 18506416138 is 136038.2892350533
• The cube root of 18506416138 is 2645.0919544031

Scales and comparisons

• 18,506,416,138 seconds is equal to 588 years, 23 weeks, 1 day, 15 hours, 8 minutes, 58 seconds.
• To count from 1 to 18,506,416,138 would take you about one thousand, one hundred seventy-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 18506416138 cubic inches would be around 220.4 feet tall.

Recreational maths with 18506416138

• 18506416138 backwards is 83161460581
• The number of decimal digits it has is: 11
• The sum of 18506416138's digits is 43
• More coming soon!