21389592
21,389,592 is an even composite number composed of five prime numbers multiplied together.
21389592 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21389592:
23 × 3 × 7 × 19 × 6701
(2 × 2 × 2 × 3 × 7 × 19 × 6701)See below for interesting mathematical facts about the number 21389592 from the Numbermatics database.
Names of 21389592
- Cardinal: 21389592 can be written as Twenty-one million, three hundred eighty-nine thousand, five hundred ninety-two.
Scientific notation
- Scientific notation: 2.1389592 × 107
Factors of 21389592
Divisors of 21389592
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 19 21 24 28 38 42 56 57 76 84 114 133 152 168 228 266 399 456 532 798 1064 1596 3192 6701 13402 20103 26804 40206 46907 53608 80412 93814 127319 140721 160824 187628 254638 281442 375256 381957 509276 562884 763914 891233 1018552 1125768 1527828 1782466 2673699 3055656 3564932 5347398 7129864 10694796 21389592
- Sum of all divisors σ(n): 64339200
- Sum of proper divisors (its aliquot sum) s(n): 42949608
- 21389592 is an abundant number, because the sum of its proper divisors (42949608) is greater than itself. Its abundance is 21560016
Bases of 21389592
- Binary: 10100011001100001000110002
- Hexadecimal: 0x1466118
- Base-36: CQGBC
Squares and roots of 21389592
- 21389592 squared (213895922) is 457514645926464
- 21389592 cubed (213895923) is 9786051610391526962688
-
The
square root of 21389592 is 4624.8883229761 -
The
cube root of 21389592 is 277.5880931257
Scales and comparisons
How big is 21389592?- 21,389,592 seconds is equal to 35 weeks, 2 days, 13 hours, 33 minutes, 12 seconds.
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To count from 1 to 21,389,592 would take you about eight hours!
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 21389592 cubic inches would be around 23.1 feet tall.
Recreational maths with 21389592
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