121981320

Names of 121981320

• Cardinal: 121981320 can be written as One hundred twenty-one million, nine hundred eighty-one thousand, three hundred twenty.

Scientific notation

• Scientific notation: 1.2198132 × 10⁸

Factors of 121981320

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5812

Divisors of 121981320

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 59 60 72 90 118 120 177 180 236 295 354 360 472 531 590 708 885 1062 1180 1416 1770 2124 2360 2655 3540 4248 5310 5743 7080 10620 11486 17229 21240 22972 28715 34458 45944 51687 57430 68916 86145 103374 114860 137832 172290 206748 229720 258435 338837 344580 413496 516870 677674 689160 1016511 1033740 1355348 1694185 2033022 2067480 2710696 3049533 3388370 4066044 5082555 6099066 6776740 8132088 10165110 12198132 13553480 15247665 20330220 24396264 30495330 40660440 60990660 121981320
• Sum of all divisors σ(n): 403228800
• Sum of proper divisors (its aliquot sum) s(n): 281247480
• 121981320 is an abundant number, because the sum of its proper divisors (281247480) is greater than itself. Its abundance is 159266160

Bases of 121981320

• Binary: 111010001010100100110001000₂
• Hexadecimal: 0x7454988
• Base-36: 20MHE0

Squares and roots of 121981320

• 121981320 squared (121981320²) is 14879442428942400
• 121981320 cubed (121981320³) is 1815014028346400155968000
• The square root of 121981320 is 11044.5153809481
• The cube root of 121981320 is 495.9422517749

Scales and comparisons

• 121,981,320 seconds is equal to 3 years, 45 weeks, 4 days, 19 hours, 42 minutes.
• To count from 1 to 121,981,320 would take you about five 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 121981320 cubic inches would be around 41.3 feet tall.

Recreational maths with 121981320

• 121981320 backwards is 023189121
• The number of decimal digits it has is: 9
• The sum of 121981320's digits is 27
• More coming soon!