21948080

Names of 21948080

• Cardinal: 21948080 can be written as Twenty-one million, nine hundred forty-eight thousand and eighty.

Scientific notation

• Scientific notation: 2.194808 × 10⁷

Factors of 21948080

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 534

Divisors of 21948080

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 35 40 44 49 55 56 70 77 80 88 98 110 112 140 154 176 196 220 245 280 308 385 392 440 490 509 539 560 616 770 784 880 980 1018 1078 1232 1540 1960 2036 2156 2545 2695 3080 3563 3920 4072 4312 5090 5390 5599 6160 7126 8144 8624 10180 10780 11198 14252 17815 20360 21560 22396 24941 27995 28504 35630 39193 40720 43120 44792 49882 55990 57008 71260 78386 89584 99764 111980 124705 142520 156772 195965 199528 223960 249410 274351 285040 313544 391930 399056 447920 498820 548702 627088 783860 997640 1097404 1371755 1567720 1995280 2194808 2743510 3135440 4389616 5487020 10974040 21948080
• Sum of all divisors σ(n): 64884240
• Sum of proper divisors (its aliquot sum) s(n): 42936160
• 21948080 is an abundant number, because the sum of its proper divisors (42936160) is greater than itself. Its abundance is 20988080

Bases of 21948080

• Binary: 1010011101110011010110000₂
• Hexadecimal: 0x14EE6B0
• Base-36: D2F8W

Squares and roots of 21948080

• 21948080 squared (21948080²) is 481718215686400
• 21948080 cubed (21948080³) is 10572789935342362112000
• The square root of 21948080 is 4684.8777999005
• The cube root of 21948080 is 279.9833323411

Scales and comparisons

• 21,948,080 seconds is equal to 36 weeks, 2 days, 41 minutes, 20 seconds.
• To count from 1 to 21,948,080 would take you about two weeks!

  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 21948080 cubic inches would be around 23.3 feet tall.

Recreational maths with 21948080

• 21948080 backwards is 08084912
• The number of decimal digits it has is: 8
• The sum of 21948080's digits is 32
• More coming soon!