72990456
72,990,456 is an even composite number composed of six prime numbers multiplied together.
72990456 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 72990456:
23 × 3 × 7 × 11 × 127 × 311
(2 × 2 × 2 × 3 × 7 × 11 × 127 × 311)See below for interesting mathematical facts about the number 72990456 from the Numbermatics database.
Names of 72990456
- Cardinal: 72990456 can be written as Seventy-two million, nine hundred ninety thousand, four hundred fifty-six.
Scientific notation
- Scientific notation: 7.2990456 × 107
Factors of 72990456
Divisors of 72990456
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 6 7 8 11 12 14 21 22 24 28 33 42 44 56 66 77 84 88 127 132 154 168 231 254 264 308 311 381 462 508 616 622 762 889 924 933 1016 1244 1397 1524 1778 1848 1866 2177 2488 2667 2794 3048 3421 3556 3732 4191 4354 5334 5588 6531 6842 7112 7464 8382 8708 9779 10263 10668 11176 13062 13684 16764 17416 19558 20526 21336 23947 26124 27368 29337 33528 39116 39497 41052 47894 52248 58674 71841 78232 78994 82104 95788 117348 118491 143682 157988 191576 234696 236982 276479 287364 315976 434467 473964 552958 574728 829437 868934 947928 1105916 1303401 1658874 1737868 2211832 2606802 3041269 3317748 3475736 5213604 6082538 6635496 9123807 10427208 12165076 18247614 24330152 36495228 72990456
- Sum of all divisors σ(n): 230031360
- Sum of proper divisors (its aliquot sum) s(n): 157040904
- 72990456 is an abundant number, because the sum of its proper divisors (157040904) is greater than itself. Its abundance is 84050448
Bases of 72990456
- Binary: 1000101100110111110111110002
- Hexadecimal: 0x459BEF8
- Base-36: 17GFSO
Squares and roots of 72990456
- 72990456 squared (729904562) is 5327606667087936
- 72990456 cubed (729904563) is 388864440019388640738816
-
The
square root of 72990456 is 8543.4452067067 -
The
cube root of 72990456 is 417.9157053223
Scales and comparisons
How big is 72990456?- 72,990,456 seconds is equal to 2 years, 16 weeks, 4 days, 19 hours, 7 minutes, 36 seconds.
-
To count from 1 to 72,990,456 would take you about three 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 72990456 cubic inches would be around 34.8 feet tall.
Recreational maths with 72990456
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