21809849088

Names of 21809849088

• Cardinal: 21809849088 can be written as Twenty-one billion, eight hundred nine million, eight hundred forty-nine thousand and eighty-eight.

Scientific notation

• Scientific notation: 2.1809849088 × 10¹⁰

Factors of 21809849088

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 78

Divisors of 21809849088

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 73 96 128 146 192 219 256 292 384 438 584 768 876 1168 1752 2336 3504 4672 5329 7008 9344 10658 14016 15987 18688 21316 28032 31974 42632 56064 63948 85264 127896 170528 255792 341056 389017 511584 682112 778034 1023168 1167051 1364224 1556068 2046336 2334102 3112136 4092672 4668204 6224272 9336408 12448544 18672816 24897088 28398241 37345632 49794176 56796482 74691264 85194723 99588352 113592964 149382528 170389446 227185928 298765056 340778892 454371856 681557784 908743712 1363115568 1817487424 2726231136 3634974848 5452462272 7269949696 10904924544 21809849088
• Sum of all divisors σ(n): 58852199084
• Sum of proper divisors (its aliquot sum) s(n): 37042349996
• 21809849088 is an abundant number, because the sum of its proper divisors (37042349996) is greater than itself. Its abundance is 15232500908

Bases of 21809849088

• Binary: 10100010011111101111110001100000000₂
• Hexadecimal: 0x513F7E300
• Base-36: A0P0R9C

Squares and roots of 21809849088

• 21809849088 squared (21809849088²) is 475669517241334431744
• 21809849088 cubed (21809849088³) is 10374280386795318032074876649472
• The square root of 21809849088 is 147681.5800565527
• The cube root of 21809849088 is 2793.9430758945

Scales and comparisons

• 21,809,849,088 seconds is equal to 693 years, 25 weeks, 1 day, 19 hours, 24 minutes, 48 seconds.
• To count from 1 to 21,809,849,088 would take you about one thousand, three hundred eighty-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 21809849088 cubic inches would be around 232.8 feet tall.

Recreational maths with 21809849088

• 21809849088 backwards is 88094890812
• The number of decimal digits it has is: 11
• The sum of 21809849088's digits is 57
• More coming soon!