21396123305280

Names of 21396123305280

• Cardinal: 21396123305280 can be written as Twenty-one trillion, three hundred ninety-six billion, one hundred twenty-three million, three hundred five thousand, two hundred eighty.

Scientific notation

• Scientific notation: 2.139612330528 × 10¹³

Factors of 21396123305280

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 11274128

Divisors of 21396123305280

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 288 320 360 480 576 659 720 960 1318 1440 1977 2636 2880 3295 3954 5272 5931 6590 7908 9885 10544 11862 13180 15816 19770 21088 23724 26360 29655 31632 39540 42176 47448 52720 59310 63264 79080 94896 105440 118620 126528 158160 189792 210880 237240 316320 379584 474480 632640 948960 1897920 11273459 22546918 33820377 45093836 56367295 67640754 90187672 101461131 112734590 135281508 169101885 180375344 202922262 225469180 270563016 338203770 360750688 405844524 450938360 507305655 541126032 676407540 721501376 811689048 901876720 1014611310 1082252064 1352815080 1623378096 1803753440 2029222620 2164504128 2705630160 3246756192 3607506880 4058445240 5411260320 6493512384 7429209481 8116890480 10822520640 14858418962 16233780960 22287628443 29716837924 32467561920 37146047405 44575256886 59433675848 66862885329 74292094810 89150513772 111438142215 118867351696 133725770658 148584189620 178301027544 222876284430 237734703392 267451541316 297168379240 334314426645 356602055088 445752568860 475469406784 534903082632 594336758480 668628853290 713204110176 891505137720 1069806165264 1188673516960 1337257706580 1426408220352 1783010275440 2139612330528 2377347033920 2674515413160 3566020550880 4279224661056 5349030826320 7132041101760 10698061652640 21396123305280
• Sum of all divisors σ(n): 73705430541600
• Sum of proper divisors (its aliquot sum) s(n): 52309307236320
• 21396123305280 is an abundant number, because the sum of its proper divisors (52309307236320) is greater than itself. Its abundance is 30913183931040

Bases of 21396123305280

• Binary: 100110111010110101100010101000100010101000000₂
• Hexadecimal: 0x1375AC544540
• Base-36: 7L18RDU80

Squares and roots of 21396123305280

• 21396123305280 squared (21396123305280²) is 457794092494745952075878400
• 21396123305280 cubed (21396123305280³) is 9795018851446341801163643829167357952000
• The square root of 21396123305280 is 4625594.3731892445
• The cube root of 21396123305280 is 27761.6344063131

Scales and comparisons

• 21,396,123,305,280 seconds is equal to 680,330 years, 28 weeks, 48 minutes.
• To count from 1 to 21,396,123,305,280 would take you about one million, seven hundred thousand, eight hundred twenty-six 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 21396123305280 cubic inches would be around 2313.5 feet tall.

Recreational maths with 21396123305280

• 21396123305280 backwards is 08250332169312
• 21396123305280 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21396123305280's digits is 45
• More coming soon!