21100992

Names of 21100992

• Cardinal: 21100992 can be written as Twenty-one million, one hundred thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 2.1100992 × 10⁷

Factors of 21100992

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 216

Divisors of 21100992

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 97 103 132 176 192 194 206 264 291 309 352 388 412 528 582 618 704 776 824 1056 1067 1133 1164 1236 1552 1648 2112 2134 2266 2328 2472 3104 3201 3296 3399 4268 4532 4656 4944 6208 6402 6592 6798 8536 9064 9312 9888 9991 12804 13596 17072 18128 18624 19776 19982 25608 27192 29973 34144 36256 39964 51216 54384 59946 68288 72512 79928 102432 108768 109901 119892 159856 204864 217536 219802 239784 319712 329703 439604 479568 639424 659406 879208 959136 1318812 1758416 1918272 2637624 3516832 5275248 7033664 10550496 21100992
• Sum of all divisors σ(n): 62130432
• Sum of proper divisors (its aliquot sum) s(n): 41029440
• 21100992 is an abundant number, because the sum of its proper divisors (41029440) is greater than itself. Its abundance is 19928448

Bases of 21100992

• Binary: 1010000011111100111000000₂
• Hexadecimal: 0x141F9C0
• Base-36: CK9MO

Squares and roots of 21100992

• 21100992 squared (21100992²) is 445251863384064
• 21100992 cubed (21100992³) is 9395256007252227391488
• The square root of 21100992 is 4593.5816091585
• The cube root of 21100992 is 276.3339792319

Scales and comparisons

• 21,100,992 seconds is equal to 34 weeks, 6 days, 5 hours, 23 minutes, 12 seconds.
• To count from 1 to 21,100,992 would take you about two days!

  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 21100992 cubic inches would be around 23 feet tall.

Recreational maths with 21100992

• 21100992 backwards is 29900112
• 21100992 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21100992's digits is 24
• More coming soon!