21109264
21,109,264 is an even composite number composed of five prime numbers multiplied together.
21109264 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 21109264:
24 × 11 × 31 × 53 × 73
(2 × 2 × 2 × 2 × 11 × 31 × 53 × 73)See below for interesting mathematical facts about the number 21109264 from the Numbermatics database.
Names of 21109264
- Cardinal: 21109264 can be written as Twenty-one million, one hundred nine thousand, two hundred sixty-four.
Scientific notation
- Scientific notation: 2.1109264 × 107
Factors of 21109264
Divisors of 21109264
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 8 11 16 22 31 44 53 62 73 88 106 124 146 176 212 248 292 341 424 496 583 584 682 803 848 1166 1168 1364 1606 1643 2263 2332 2728 3212 3286 3869 4526 4664 5456 6424 6572 7738 9052 9328 12848 13144 15476 18073 18104 24893 26288 30952 36146 36208 42559 49786 61904 72292 85118 99572 119939 144584 170236 199144 239878 289168 340472 398288 479756 680944 959512 1319329 1919024 2638658 5277316 10554632 21109264
- Sum of all divisors σ(n): 47568384
- Sum of proper divisors (its aliquot sum) s(n): 26459120
- 21109264 is an abundant number, because the sum of its proper divisors (26459120) is greater than itself. Its abundance is 5349856
Bases of 21109264
- Binary: 10100001000011010000100002
- Hexadecimal: 0x1421A10
- Base-36: CKG0G
Squares and roots of 21109264
- 21109264 squared (211092642) is 445601026621696
- 21109264 cubed (211092643) is 9406309709628408991744
-
The
square root of 21109264 is 4594.4819076801 -
The
cube root of 21109264 is 276.3700839489
Scales and comparisons
How big is 21109264?- 21,109,264 seconds is equal to 34 weeks, 6 days, 7 hours, 41 minutes, 4 seconds.
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To count from 1 to 21,109,264 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 21109264 cubic inches would be around 23 feet tall.
Recreational maths with 21109264
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