18628272640

Names of 18628272640

• Cardinal: 18628272640 can be written as Eighteen billion, six hundred twenty-eight million, two hundred seventy-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.862827264 × 10¹⁰

Factors of 18628272640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1695

Divisors of 18628272640

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 67 80 128 134 160 256 268 320 335 512 536 640 670 1072 1280 1340 1621 2144 2560 2680 3242 4288 4489 5360 6484 8105 8576 8978 10720 12968 16210 17152 17956 21440 22445 25936 32420 34304 35912 42880 44890 51872 64840 71824 85760 89780 103744 108607 129680 143648 171520 179560 207488 217214 259360 287296 359120 414976 434428 518720 543035 574592 718240 829952 868856 1037440 1086070 1149184 1436480 1737712 2074880 2172140 2298368 2872960 3475424 4149760 4344280 5745920 6950848 7276669 8688560 11491840 13901696 14553338 17377120 27803392 29106676 34754240 36383345 55606784 58213352 69508480 72766690 116426704 139016960 145533380 232853408 278033920 291066760 465706816 582133520 931413632 1164267040 1862827264 2328534080 3725654528 4657068160 9314136320 18628272640
• Sum of all divisors σ(n): 45368744652
• Sum of proper divisors (its aliquot sum) s(n): 26740472012
• 18628272640 is an abundant number, because the sum of its proper divisors (26740472012) is greater than itself. Its abundance is 8112199372

Bases of 18628272640

• Binary: 10001010110010101001110001000000000₂
• Hexadecimal: 0x45654E200
• Base-36: 8K2SJ5S

Squares and roots of 18628272640

• 18628272640 squared (18628272640²) is 347012541550172569600
• 18628272640 cubed (18628272640³) is 6464244233495942865558175744000
• The square root of 18628272640 is 136485.4301381653
• The cube root of 18628272640 is 2650.8848422873

Scales and comparisons

• 18,628,272,640 seconds is equal to 592 years, 16 weeks, 5 days, 10 minutes, 40 seconds.
• To count from 1 to 18,628,272,640 would take you about one thousand, one hundred eighty-four 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 18628272640 cubic inches would be around 220.9 feet tall.

Recreational maths with 18628272640

• 18628272640 backwards is 04627282681
• The number of decimal digits it has is: 11
• The sum of 18628272640's digits is 46
• More coming soon!