72139760
72,139,760 is an even composite number composed of five prime numbers multiplied together.
72139760 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 72139760:
24 × 5 × 73 × 11 × 239
(2 × 2 × 2 × 2 × 5 × 7 × 7 × 7 × 11 × 239)See below for interesting mathematical facts about the number 72139760 from the Numbermatics database.
Names of 72139760
- Cardinal: 72139760 can be written as Seventy-two million, one hundred thirty-nine thousand, seven hundred sixty.
Scientific notation
- Scientific notation: 7.213976 × 107
Factors of 72139760
Divisors of 72139760
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 4 5 7 8 10 11 14 16 20 22 28 35 40 44 49 55 56 70 77 80 88 98 110 112 140 154 176 196 220 239 245 280 308 343 385 392 440 478 490 539 560 616 686 770 784 880 956 980 1078 1195 1232 1372 1540 1673 1715 1912 1960 2156 2390 2629 2695 2744 3080 3346 3430 3773 3824 3920 4312 4780 5258 5390 5488 6160 6692 6860 7546 8365 8624 9560 10516 10780 11711 13145 13384 13720 15092 16730 18403 18865 19120 21032 21560 23422 26290 26768 27440 30184 33460 36806 37730 42064 43120 46844 52580 58555 60368 66920 73612 75460 81977 92015 93688 105160 117110 128821 133840 147224 150920 163954 184030 187376 210320 234220 257642 294448 301840 327908 368060 409885 468440 515284 644105 655816 736120 819770 901747 936880 1030568 1288210 1311632 1472240 1639540 1803494 2061136 2576420 3279080 3606988 4508735 5152840 6558160 7213976 9017470 10305680 14427952 18034940 36069880 72139760
- Sum of all divisors σ(n): 214272000
- Sum of proper divisors (its aliquot sum) s(n): 142132240
- 72139760 is an abundant number, because the sum of its proper divisors (142132240) is greater than itself. Its abundance is 69992480
Bases of 72139760
- Binary: 1000100110011000011111100002
- Hexadecimal: 0x44CC3F0
- Base-36: 16Y7E8
Squares and roots of 72139760
- 72139760 squared (721397602) is 5204144972857600
- 72139760 cubed (721397603) is 375425769347153778176000
-
The
square root of 72139760 is 8493.5128186165 -
The
cube root of 72139760 is 416.2857688843
Scales and comparisons
How big is 72139760?- 72,139,760 seconds is equal to 2 years, 15 weeks, 1 day, 22 hours, 49 minutes, 20 seconds.
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To count from 1 to 72,139,760 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 72139760 cubic inches would be around 34.7 feet tall.
Recreational maths with 72139760
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