18027120972

Names of 18027120972

• Cardinal: 18027120972 can be written as Eighteen billion, twenty-seven million, one hundred twenty thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 1.8027120972 × 10¹⁰

Factors of 18027120972

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 125

Divisors of 18027120972

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 3 4 6 7 12 14 21 28 42 49 84 98 113 147 196 226 294 339 343 452 588 678 686 791 1029 1356 1372 1582 2058 2373 2401 3164 4116 4746 4802 5537 7203 9492 9604 11074 12769 14406 16611 16807 22148 25538 28812 33222 33614 38307 38759 50421 51076 66444 67228 76614 77518 89383 100842 116277 117649 153228 155036 178766 201684 232554 235298 268149 271313 352947 357532 465108 470596 536298 542626 625681 705894 813939 1072596 1085252 1251362 1411788 1627878 1877043 1899191 2502724 3255756 3754086 3798382 4379767 5697573 7508172 7596764 8759534 11395146 13139301 13294337 17519068 22790292 26278602 26588674 30658369 39883011 52557204 53177348 61316738 79766022 91975107 122633476 159532044 183950214 214608583 367900428 429217166 643825749 858434332 1287651498 1502260081 2575302996 3004520162 4506780243 6009040324 9013560486 18027120972
• Sum of all divisors σ(n): 49511894068
• Sum of proper divisors (its aliquot sum) s(n): 31484773096
• 18027120972 is an abundant number, because the sum of its proper divisors (31484773096) is greater than itself. Its abundance is 13457652124

Bases of 18027120972

• Binary: 10000110010100000000000100101001100₂
• Hexadecimal: 0x43280094C
• Base-36: 8A4VRKC

Squares and roots of 18027120972

• 18027120972 squared (18027120972²) is 324977090539122224784
• 18027120972 cubed (18027120972³) is 5858401324277353044874944570048
• The square root of 18027120972 is 134265.1145011243
• The cube root of 18027120972 is 2622.0569754323

Scales and comparisons

• 18,027,120,972 seconds is equal to 573 years, 10 weeks, 5 days, 5 hours, 36 minutes, 12 seconds.
• To count from 1 to 18,027,120,972 would take you about one thousand, one hundred forty-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 18027120972 cubic inches would be around 218.5 feet tall.

Recreational maths with 18027120972

• 18027120972 backwards is 27902172081
• The number of decimal digits it has is: 11
• The sum of 18027120972's digits is 39
• More coming soon!