21331354720
21,331,354,720 is an even composite number composed of five prime numbers multiplied together.
21331354720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21331354720:
25 × 5 × 13 × 19 × 539761
(2 × 2 × 2 × 2 × 2 × 5 × 13 × 19 × 539761)See below for interesting mathematical facts about the number 21331354720 from the Numbermatics database.
Names of 21331354720
- Cardinal: 21331354720 can be written as Twenty-one billion, three hundred thirty-one million, three hundred fifty-four thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.133135472 × 1010
Factors of 21331354720
Divisors of 21331354720
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 4 5 8 10 13 16 19 20 26 32 38 40 52 65 76 80 95 104 130 152 160 190 208 247 260 304 380 416 494 520 608 760 988 1040 1235 1520 1976 2080 2470 3040 3952 4940 7904 9880 19760 39520 539761 1079522 2159044 2698805 4318088 5397610 7016893 8636176 10255459 10795220 14033786 17272352 20510918 21590440 28067572 35084465 41021836 43180880 51277295 56135144 70168930 82043672 86361760 102554590 112270288 133320967 140337860 164087344 205109180 224540576 266641934 280675720 328174688 410218360 533283868 561351440 666604835 820436720 1066567736 1122702880 1333209670 1640873440 2133135472 2666419340 4266270944 5332838680 10665677360 21331354720
- Sum of all divisors σ(n): 57128410080
- Sum of proper divisors (its aliquot sum) s(n): 35797055360
- 21331354720 is an abundant number, because the sum of its proper divisors (35797055360) is greater than itself. Its abundance is 14465700640
Bases of 21331354720
- Binary: 100111101110111001010100100011000002
- Hexadecimal: 0x4F772A460
- Base-36: 9SS4YN4
Squares and roots of 21331354720
- 21331354720 squared (213313547202) is 455026694190466278400
- 21331354720 cubed (213313547203) is 9706335820845799426748674048000
-
The
square root of 21331354720 is 146052.5751912647 -
The
cube root of 21331354720 is 2773.3593513853
Scales and comparisons
How big is 21331354720?- 21,331,354,720 seconds is equal to 678 years, 14 weeks, 16 hours, 18 minutes, 40 seconds.
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To count from 1 to 21,331,354,720 would take you about one thousand, three hundred fifty-six 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 21331354720 cubic inches would be around 231.1 feet tall.
Recreational maths with 21331354720
- 21331354720 backwards is 02745313312
- The number of decimal digits it has is: 11
- The sum of 21331354720's digits is 31
- More coming soon!
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