21939072
21,939,072 is an even composite number composed of five prime numbers multiplied together.
21939072 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21939072:
27 × 3 × 19 × 31 × 97
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 19 × 31 × 97)See below for interesting mathematical facts about the number 21939072 from the Numbermatics database.
Names of 21939072
- Cardinal: 21939072 can be written as Twenty-one million, nine hundred thirty-nine thousand and seventy-two.
Scientific notation
- Scientific notation: 2.1939072 × 107
Factors of 21939072
Divisors of 21939072
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 6 8 12 16 19 24 31 32 38 48 57 62 64 76 93 96 97 114 124 128 152 186 192 194 228 248 291 304 372 384 388 456 496 582 589 608 744 776 912 992 1164 1178 1216 1488 1552 1767 1824 1843 1984 2328 2356 2432 2976 3007 3104 3534 3648 3686 3968 4656 4712 5529 5952 6014 6208 7068 7296 7372 9021 9312 9424 11058 11904 12028 12416 14136 14744 18042 18624 18848 22116 24056 28272 29488 36084 37248 37696 44232 48112 56544 57133 58976 72168 75392 88464 96224 113088 114266 117952 144336 171399 176928 192448 226176 228532 235904 288672 342798 353856 384896 457064 577344 685596 707712 914128 1154688 1371192 1828256 2742384 3656512 5484768 7313024 10969536 21939072
- Sum of all divisors σ(n): 63974400
- Sum of proper divisors (its aliquot sum) s(n): 42035328
- 21939072 is an abundant number, because the sum of its proper divisors (42035328) is greater than itself. Its abundance is 20096256
Bases of 21939072
- Binary: 10100111011000011100000002
- Hexadecimal: 0x14EC380
- Base-36: D28AO
Squares and roots of 21939072
- 21939072 squared (219390722) is 481322880221184
- 21939072 cubed (219390723) is 10559777324419931701248
-
The
square root of 21939072 is 4683.9163100977 -
The
cube root of 21939072 is 279.9450232199
Scales and comparisons
How big is 21939072?- 21,939,072 seconds is equal to 36 weeks, 1 day, 22 hours, 11 minutes, 12 seconds.
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To count from 1 to 21,939,072 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 21939072 cubic inches would be around 23.3 feet tall.
Recreational maths with 21939072
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The information we have on file for 21939072 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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