20481984

Names of 20481984

• Cardinal: 20481984 can be written as Twenty million, four hundred eighty-one thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.0481984 × 10⁷

Factors of 20481984

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 444

Divisors of 20481984

• Number of divisors d(n): 98
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 144 162 192 216 243 288 324 432 439 486 576 648 729 864 878 972 1296 1317 1458 1728 1756 1944 2592 2634 2916 3512 3888 3951 5184 5268 5832 7024 7776 7902 10536 11664 11853 14048 15552 15804 21072 23328 23706 28096 31608 35559 42144 46656 47412 63216 71118 84288 94824 106677 126432 142236 189648 213354 252864 284472 320031 379296 426708 568944 640062 758592 853416 1137888 1280124 1706832 2275776 2560248 3413664 5120496 6827328 10240992 20481984
• Sum of all divisors σ(n): 61076840
• Sum of proper divisors (its aliquot sum) s(n): 40594856
• 20481984 is an abundant number, because the sum of its proper divisors (40594856) is greater than itself. Its abundance is 20112872

Bases of 20481984

• Binary: 1001110001000011111000000₂
• Hexadecimal: 0x13887C0
• Base-36: C7000

Squares and roots of 20481984

• 20481984 squared (20481984²) is 419511668576256
• 20481984 cubed (20481984³) is 8592431283592178171904
• The square root of 20481984 is 4525.7025973875
• The cube root of 20481984 is 273.6049860587

Scales and comparisons

• 20,481,984 seconds is equal to 33 weeks, 6 days, 1 hour, 26 minutes, 24 seconds.
• To count from 1 to 20,481,984 would take you about fifty 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 20481984 cubic inches would be around 22.8 feet tall.

Recreational maths with 20481984

• 20481984 backwards is 48918402
• 20481984 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20481984's digits is 36
• More coming soon!