18491190637566741137

Names of 18491190637566741137

• Cardinal: 18491190637566741137 can be written as Eighteen quintillion, four hundred ninety-one quadrillion, one hundred ninety trillion, six hundred thirty-seven billion, five hundred sixty-six million, seven hundred forty-one thousand, one hundred thirty-seven.

Scientific notation

• Scientific notation: 1.8491190637566741137 × 10¹⁹

Factors of 18491190637566741137

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 4944101

Divisors of 18491190637566741137

• Number of divisors d(n): 32
• Complete list of divisors:
  1 17 197 3349 3449 58633 348637 679453 4591801 5926829 11550701 68681489 78060617 904584797 1167585313 1202449013 15377941549 15837121649 20441633221 236882455561 269231068033 1600871725237 3119912964853 4027001744537 27214819329029 53038520402501 315371729871689 5361319407818713 5521406580342413 93863911865821021 1087717096327455361 18491190637566741137
• Sum of all divisors σ(n): 19684059305818960800
• Sum of proper divisors (its aliquot sum) s(n): 1192868668252219663
• 18491190637566741137 is a deficient number, because the sum of its proper divisors (1192868668252219663) is less than itself. Its deficiency is 17298321969314521474

Bases of 18491190637566741137

• Binary: 10000000010011101111001111110101000010010001100011100101010010001₂
• Hexadecimal: 0x1009DE7EA1231CA91
• Base-36: 3WHJO0RQ538GH

Squares and roots of 18491190637566741137

• 18491190637566741137 squared (18491190637566741137²) is 341924131194835902581515464054368052769
• 18491190637566741137 cubed (18491190637566741137³) is 6322584293508091735447861346150309905595309903895779058353
• The square root of 18491190637566741137 is 4300138444.0000000011
• The cube root of 18491190637566741137 is 2644366.3700469169

Scales and comparisons

• 18,491,190,637,566,741,137 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,491,190,637,566,741,137 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 18491190637566741137 cubic inches would be around 220363.9 feet tall.

Recreational maths with 18491190637566741137

• 18491190637566741137 backwards is 73114766573609119481
• The number of decimal digits it has is: 20
• The sum of 18491190637566741137's digits is 89
• More coming soon!