18195890568

Names of 18195890568

• Cardinal: 18195890568 can be written as Eighteen billion, one hundred ninety-five million, eight hundred ninety thousand, five hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8195890568 × 10¹⁰

Factors of 18195890568

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5795

Divisors of 18195890568

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 12 17 24 34 51 61 68 102 122 131 136 183 204 244 262 366 393 408 488 524 732 786 1037 1048 1464 1572 2074 2227 3111 3144 4148 4454 5581 6222 6681 7991 8296 8908 11162 12444 13362 15982 16743 17816 22324 23973 24888 26724 31964 33486 44648 47946 53448 63928 66972 94877 95892 133944 135847 189754 191784 271694 284631 340441 379508 407541 543388 569262 680882 731111 759016 815082 1021323 1086776 1138524 1361764 1462222 1630164 2042646 2193333 2277048 2723528 2924444 3260328 4085292 4386666 5787497 5848888 8170584 8773332 11574994 12428887 17362491 17546664 23149988 24857774 34724982 37286661 44597771 46299976 49715548 69449964 74573322 89195542 99431096 133793313 138899928 149146644 178391084 267586626 298293288 356782168 535173252 758162107 1070346504 1516324214 2274486321 3032648428 4548972642 6065296856 9097945284 18195890568
• Sum of all divisors σ(n): 49337735040
• Sum of proper divisors (its aliquot sum) s(n): 31141844472
• 18195890568 is an abundant number, because the sum of its proper divisors (31141844472) is greater than itself. Its abundance is 12945953904

Bases of 18195890568

• Binary: 10000111100100011110100000110001000₂
• Hexadecimal: 0x43C8F4188
• Base-36: 8CXD30O

Squares and roots of 18195890568

• 18195890568 squared (18195890568²) is 331090433562631362624
• 18195890568 cubed (18195890568³) is 6024485297217314648431029330432
• The square root of 18195890568 is 134892.1442041753
• The cube root of 18195890568 is 2630.2141231979

Scales and comparisons

• 18,195,890,568 seconds is equal to 578 years, 29 weeks, 5 days, 14 hours, 2 minutes, 48 seconds.
• To count from 1 to 18,195,890,568 would take you about one thousand, one hundred fifty-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 18195890568 cubic inches would be around 219.2 feet tall.

Recreational maths with 18195890568

• 18195890568 backwards is 86509859181
• The number of decimal digits it has is: 11
• The sum of 18195890568's digits is 60
• More coming soon!