21379587008

Names of 21379587008

• Cardinal: 21379587008 can be written as Twenty-one billion, three hundred seventy-nine million, five hundred eighty-seven thousand and eight.

Scientific notation

• Scientific notation: 2.1379587008 × 10¹⁰

Factors of 21379587008

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 795

Divisors of 21379587008

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 64 104 169 208 338 383 397 416 676 766 794 832 1352 1532 1588 2197 2704 3064 3176 4394 4979 5161 5408 6128 6352 8788 9958 10322 10816 12256 12704 17576 19916 20644 24512 25408 35152 39832 41288 64727 67093 70304 79664 82576 129454 134186 140608 152051 159328 165152 258908 268372 304102 318656 330304 517816 536744 608204 841451 872209 1035632 1073488 1216408 1682902 1744418 1976663 2071264 2146976 2432816 3365804 3488836 3953326 4142528 4293952 4865632 6731608 6977672 7906652 9731264 13463216 13955344 15813304 25696619 26926432 27910688 31626608 51393238 53852864 55821376 63253216 102786476 126506432 205572952 334056047 411145904 668112094 822291808 1336224188 1644583616 2672448376 5344896752 10689793504 21379587008
• Sum of all divisors σ(n): 46195000320
• Sum of proper divisors (its aliquot sum) s(n): 24815413312
• 21379587008 is an abundant number, because the sum of its proper divisors (24815413312) is greater than itself. Its abundance is 3435826304

Bases of 21379587008

• Binary: 10011111010010100101001101111000000₂
• Hexadecimal: 0x4FA529BC0
• Base-36: 9TKUQWW

Squares and roots of 21379587008

• 21379587008 squared (21379587008²) is 457086740632642392064
• 21379587008 cubed (21379587008³) is 9772325741558706986081536704512
• The square root of 21379587008 is 146217.6015669797
• The cube root of 21379587008 is 2775.4480572085

Scales and comparisons

• 21,379,587,008 seconds is equal to 679 years, 41 weeks, 5 days, 22 hours, 10 minutes, 8 seconds.
• To count from 1 to 21,379,587,008 would take you about one thousand, three hundred fifty-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 21379587008 cubic inches would be around 231.3 feet tall.

Recreational maths with 21379587008

• 21379587008 backwards is 80078597312
• The number of decimal digits it has is: 11
• The sum of 21379587008's digits is 50
• More coming soon!