18940421632

Names of 18940421632

• Cardinal: 18940421632 can be written as Eighteen billion, nine hundred forty million, four hundred twenty-one thousand, six hundred thirty-two.

Scientific notation

• Scientific notation: 1.8940421632 × 10¹⁰

Factors of 18940421632

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3911

Divisors of 18940421632

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 64 88 128 176 256 352 512 704 1289 1408 2578 2609 2816 5156 5218 5632 10312 10436 14179 20624 20872 28358 28699 41248 41744 56716 57398 82496 83488 113432 114796 164992 166976 226864 229592 329984 333952 453728 459184 659968 667904 907456 918368 1335808 1814912 1836736 3363001 3629824 3673472 6726002 7259648 7346944 13452004 14693888 26904008 36993011 53808016 73986022 107616032 147972044 215232064 295944088 430464128 591888176 860928256 1183776352 1721856512 2367552704 4735105408 9470210816 18940421632
• Sum of all divisors σ(n): 41332064400
• Sum of proper divisors (its aliquot sum) s(n): 22391642768
• 18940421632 is an abundant number, because the sum of its proper divisors (22391642768) is greater than itself. Its abundance is 3451221136

Bases of 18940421632

• Binary: 10001101000111011111110011000000000₂
• Hexadecimal: 0x468EFE600
• Base-36: 8P8MYV4

Squares and roots of 18940421632

• 18940421632 squared (18940421632²) is 358739571597933543424
• 18940421632 cubed (18940421632³) is 6794678742147913292366340947968
• The square root of 18940421632 is 137624.2043828047
• The cube root of 18940421632 is 2665.6096228301

Scales and comparisons

• 18,940,421,632 seconds is equal to 602 years, 12 weeks, 5 days, 20 hours, 13 minutes, 52 seconds.
• To count from 1 to 18,940,421,632 would take you about one thousand, two hundred 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 18940421632 cubic inches would be around 222.1 feet tall.

Recreational maths with 18940421632

• 18940421632 backwards is 23612404981
• The number of decimal digits it has is: 11
• The sum of 18940421632's digits is 40
• More coming soon!