72139680
72,139,680 is an even composite number composed of four prime numbers multiplied together.
72139680 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 72139680:
25 × 33 × 5 × 16699
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 16699)See below for interesting mathematical facts about the number 72139680 from the Numbermatics database.
Names of 72139680
- Cardinal: 72139680 can be written as Seventy-two million, one hundred thirty-nine thousand, six hundred eighty.
Scientific notation
- Scientific notation: 7.213968 × 107
Factors of 72139680
Divisors of 72139680
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 90 96 108 120 135 144 160 180 216 240 270 288 360 432 480 540 720 864 1080 1440 2160 4320 16699 33398 50097 66796 83495 100194 133592 150291 166990 200388 250485 267184 300582 333980 400776 450873 500970 534368 601164 667960 751455 801552 901746 1001940 1202328 1335920 1502910 1603104 1803492 2003880 2254365 2404656 2671840 3005820 3606984 4007760 4508730 4809312 6011640 7213968 8015520 9017460 12023280 14427936 18034920 24046560 36069840 72139680
- Sum of all divisors σ(n): 252504000
- Sum of proper divisors (its aliquot sum) s(n): 180364320
- 72139680 is an abundant number, because the sum of its proper divisors (180364320) is greater than itself. Its abundance is 108224640
Bases of 72139680
- Binary: 1000100110011000011101000002
- Hexadecimal: 0x44CC3A0
- Base-36: 16Y7C0
Squares and roots of 72139680
- 72139680 squared (721396802) is 5204133430502400
- 72139680 cubed (721396803) is 375424520353745375232000
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The
square root of 72139680 is 8493.5081091385 -
The
cube root of 72139680 is 416.2856150031
Scales and comparisons
How big is 72139680?- 72,139,680 seconds is equal to 2 years, 15 weeks, 1 day, 22 hours, 48 minutes.
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To count from 1 to 72,139,680 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 72139680 cubic inches would be around 34.7 feet tall.
Recreational maths with 72139680
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