21428948847825320

Names of 21428948847825320

• Cardinal: 21428948847825320 can be written as Twenty-one quadrillion, four hundred twenty-eight trillion, nine hundred forty-eight billion, eight hundred forty-seven million, eight hundred twenty-five thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.142894884782532 × 10¹⁶

Factors of 21428948847825320

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6781312926613

Divisors of 21428948847825320

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 4 5 8 10 20 40 79 158 316 395 632 790 1580 3160 6781312926527 13562625853054 27125251706108 33906564632635 54250503412216 67813129265270 135626258530540 271252517061080 535723721195633 1071447442391266 2142894884782532 2678618605978165 4285789769565064 5357237211956330 10714474423912660 21428948847825320
• Sum of all divisors σ(n): 48825453071001600
• Sum of proper divisors (its aliquot sum) s(n): 27396504223176280
• 21428948847825320 is an abundant number, because the sum of its proper divisors (27396504223176280) is greater than itself. Its abundance is 5967555375350960

Bases of 21428948847825320

• Binary: 1001100001000011000001111110011111111000001000110101000₂
• Hexadecimal: 0x4C2183F3FC11A8
• Base-36: 5UZXF74XJMW

Squares and roots of 21428948847825320

• 21428948847825320 squared (21428948847825320²) is 459199848722714109534493233102400
• 21428948847825320 cubed (21428948847825320³) is 9840170069208165759367640883099984668076872768000
• The square root of 21428948847825320 is 146386300.0687746053
• The cube root of 21428948847825320 is 277758.2428340123

Scales and comparisons

• 21,428,948,847,825,320 seconds is equal to 681,374,289 years, 14 weeks, 6 hours, 35 minutes, 20 seconds.
• To count from 1 to 21,428,948,847,825,320 would take you about two billion, forty-four million, one hundred twenty-two thousand, eight hundred sixty-seven 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 21428948847825320 cubic inches would be around 23146.5 feet tall.

Recreational maths with 21428948847825320

• 21428948847825320 backwards is 02352874884982412
• The number of decimal digits it has is: 17
• The sum of 21428948847825320's digits is 77
• More coming soon!