21072038442
21,072,038,442 is an even composite number composed of five prime numbers multiplied together.
21072038442 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21072038442:
2 × 3 × 7 × 132 × 17232
(2 × 3 × 7 × 13 × 13 × 1723 × 1723)See below for interesting mathematical facts about the number 21072038442 from the Numbermatics database.
Names of 21072038442
- Cardinal: 21072038442 can be written as Twenty-one billion, seventy-two million, thirty-eight thousand, four hundred forty-two.
Scientific notation
- Scientific notation: 2.1072038442 × 1010
Factors of 21072038442
Divisors of 21072038442
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 6 7 13 14 21 26 39 42 78 91 169 182 273 338 507 546 1014 1183 1723 2366 3446 3549 5169 7098 10338 12061 22399 24122 36183 44798 67197 72366 134394 156793 291187 313586 470379 582374 873561 940758 1747122 2038309 2968729 4076618 5937458 6114927 8906187 12229854 17812374 20781103 38593477 41562206 62343309 77186954 115780431 124686618 231560862 270154339 501715201 540308678 810463017 1003430402 1505145603 1620926034 3010291206 3512006407 7024012814 10536019221 21072038442
- Sum of all divisors σ(n): 52184918304
- Sum of proper divisors (its aliquot sum) s(n): 31112879862
- 21072038442 is an abundant number, because the sum of its proper divisors (31112879862) is greater than itself. Its abundance is 10040841420
Bases of 21072038442
- Binary: 100111001111111110111001010001010102
- Hexadecimal: 0x4E7FDCA2A
- Base-36: 9OHQWX6
Squares and roots of 21072038442
- 21072038442 squared (210720384422) is 444030804101125787364
- 21072038442 cubed (210720384423) is 9356634173451093846811725846888
-
The
square root of 21072038442 is 145162.1109036375 -
The
cube root of 21072038442 is 2762.0753155693
Scales and comparisons
How big is 21072038442?- 21,072,038,442 seconds is equal to 670 years, 1 week, 2 days, 8 hours, 42 seconds.
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To count from 1 to 21,072,038,442 would take you about one thousand, three hundred forty years!
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 21072038442 cubic inches would be around 230.2 feet tall.
Recreational maths with 21072038442
- 21072038442 backwards is 24483027012
- The number of decimal digits it has is: 11
- The sum of 21072038442's digits is 33
- More coming soon!
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