20091968

Names of 20091968

• Cardinal: 20091968 can be written as Twenty million, ninety-one thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 2.0091968 × 10⁷

Factors of 20091968

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 106

Divisors of 20091968

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 8 13 16 19 26 31 32 38 41 52 62 64 76 82 104 124 152 164 208 247 248 304 328 403 416 494 496 533 589 608 656 779 806 832 988 992 1066 1178 1216 1271 1312 1558 1612 1976 1984 2132 2356 2542 2624 3116 3224 3952 4264 4712 5084 6232 6448 7657 7904 8528 9424 10127 10168 12464 12896 15314 15808 16523 17056 18848 20254 20336 24149 24928 25792 30628 33046 34112 37696 40508 40672 48298 49856 61256 66092 81016 81344 96596 122512 132184 162032 193192 245024 264368 313937 324064 386384 490048 528736 627874 648128 772768 1057472 1255748 1545536 2511496 5022992 10045984 20091968
• Sum of all divisors σ(n): 47792640
• Sum of proper divisors (its aliquot sum) s(n): 27700672
• 20091968 is an abundant number, because the sum of its proper divisors (27700672) is greater than itself. Its abundance is 7608704

Bases of 20091968

• Binary: 1001100101001010001000000₂
• Hexadecimal: 0x1329440
• Base-36: BYN28

Squares and roots of 20091968

• 20091968 squared (20091968²) is 403687178113024
• 20091968 cubed (20091968³) is 8110869864657178591232
• The square root of 20091968 is 4482.4064965151
• The cube root of 20091968 is 271.8571914701

Scales and comparisons

• 20,091,968 seconds is equal to 33 weeks, 1 day, 13 hours, 6 minutes, 8 seconds.
• To count from 1 to 20,091,968 would take you about forty-nine 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 20091968 cubic inches would be around 22.7 feet tall.

Recreational maths with 20091968

• 20091968 backwards is 86919002
• The number of decimal digits it has is: 8
• The sum of 20091968's digits is 35
• More coming soon!