18138376575

Names of 18138376575

• Cardinal: 18138376575 can be written as Eighteen billion, one hundred thirty-eight million, three hundred seventy-six thousand, five hundred seventy-five.

Scientific notation

• Scientific notation: 1.8138376575 × 10¹⁰

Factors of 18138376575

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1136

Divisors of 18138376575

• Number of divisors d(n): 132
• Complete list of divisors:
  1 3 5 9 11 15 25 27 33 45 55 75 81 99 135 165 225 243 275 297 405 495 675 729 825 891 1117 1215 1485 2025 2187 2475 2673 3351 3645 4455 5585 6075 6561 7425 8019 10053 10935 12287 13365 16755 18225 19683 22275 24057 27925 30159 32805 36861 40095 50265 54675 59049 61435 66825 72171 83775 90477 98415 110583 120285 150795 164025 184305 200475 216513 251325 271431 295245 307175 331749 360855 452385 492075 552915 601425 649539 753975 814293 921525 995247 1082565 1357155 1476225 1658745 1804275 2261925 2442879 2764575 2985741 3247695 4071465 4976235 5412825 6785775 7328637 8293725 8957223 12214395 14928705 16238475 20357325 21985911 24881175 26871669 36643185 44786115 61071975 65957733 74643525 80615007 109929555 134358345 183215925 223930575 241845021 329788665 403075035 549647775 671791725 725535063 1209225105 1648943325 2015375175 3627675315 6046125525 18138376575
• Sum of all divisors σ(n): 36837156408
• Sum of proper divisors (its aliquot sum) s(n): 18698779833
• 18138376575 is an abundant number, because the sum of its proper divisors (18698779833) is greater than itself. Its abundance is 560403258

Bases of 18138376575

• Binary: 10000111001001000011010100101111111₂
• Hexadecimal: 0x43921A97F
• Base-36: 8BZ4CXR

Squares and roots of 18138376575

• 18138376575 squared (18138376575²) is 329000704776508730625
• 18138376575 cubed (18138376575³) is 5967538676676716569851485109375
• The square root of 18138376575 is 134678.7903680457
• The cube root of 18138376575 is 2627.4399843497

Scales and comparisons

• 18,138,376,575 seconds is equal to 576 years, 38 weeks, 4 days, 21 hours, 56 minutes, 15 seconds.
• To count from 1 to 18,138,376,575 would take you about one thousand, one hundred fifty-three 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 18138376575 cubic inches would be around 219 feet tall.

Recreational maths with 18138376575

• 18138376575 backwards is 57567383181
• The number of decimal digits it has is: 11
• The sum of 18138376575's digits is 54
• More coming soon!