1807121394

Names of 1807121394

• Cardinal: 1807121394 can be written as One billion, eight hundred seven million, one hundred twenty-one thousand, three hundred ninety-four.

Scientific notation

• Scientific notation: 1.807121394 × 10⁹

Factors of 1807121394

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2878

Divisors of 1807121394

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 9 13 18 26 27 39 54 71 78 117 142 169 213 234 338 351 426 507 639 702 923 1014 1278 1521 1846 1917 2769 2789 3042 3834 4563 5538 5578 8307 8367 9126 11999 16614 16734 23998 24921 25101 35997 36257 49842 50202 71994 72514 75303 107991 108771 150606 198019 215982 217542 323973 326313 396038 471341 594057 647946 652626 942682 978939 1188114 1414023 1782171 1957878 2574247 2828046 3564342 4242069 5148494 5346513 7722741 8484138 10693026 12726207 15445482 23168223 25452414 33465211 46336446 66930422 69504669 100395633 139009338 200791266 301186899 602373798 903560697 1807121394
• Sum of all divisors σ(n): 4411324800
• Sum of proper divisors (its aliquot sum) s(n): 2604203406
• 1807121394 is an abundant number, because the sum of its proper divisors (2604203406) is greater than itself. Its abundance is 797082012

Bases of 1807121394

• Binary: 1101011101101100111101111110010₂
• Hexadecimal: 0x6BB67BF2
• Base-36: TVWVSI

Squares and roots of 1807121394

• 1807121394 squared (1807121394²) is 3265687732652503236
• 1807121394 cubed (1807121394³) is 5901494167799690965429830984
• The square root of 1807121394 is 42510.2504579777
• The cube root of 1807121394 is 1218.0425013683

Scales and comparisons

• 1,807,121,394 seconds is equal to 57 years, 23 weeks, 6 days, 18 hours, 9 minutes, 54 seconds.
• To count from 1 to 1,807,121,394 would take you about one hundred fourteen 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 1807121394 cubic inches would be around 101.5 feet tall.

Recreational maths with 1807121394

• 1807121394 backwards is 4931217081
• The number of decimal digits it has is: 10
• The sum of 1807121394's digits is 36
• More coming soon!