72140864
72,140,864 is an even composite number composed of four prime numbers multiplied together.
72140864 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of fifty-six divisors.
Prime factorization of 72140864:
26 × 29 × 47 × 827
(2 × 2 × 2 × 2 × 2 × 2 × 29 × 47 × 827)See below for interesting mathematical facts about the number 72140864 from the Numbermatics database.
Names of 72140864
- Cardinal: 72140864 can be written as Seventy-two million, one hundred forty thousand, eight hundred sixty-four.
Scientific notation
- Scientific notation: 7.2140864 × 107
Factors of 72140864
Divisors of 72140864
- Number of divisors d(n): 56
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Complete list of divisors:
1 2 4 8 16 29 32 47 58 64 94 116 188 232 376 464 752 827 928 1363 1504 1654 1856 2726 3008 3308 5452 6616 10904 13232 21808 23983 26464 38869 43616 47966 52928 77738 87232 95932 155476 191864 310952 383728 621904 767456 1127201 1243808 1534912 2254402 2487616 4508804 9017608 18035216 36070432 72140864
- Sum of all divisors σ(n): 151424640
- Sum of proper divisors (its aliquot sum) s(n): 79283776
- 72140864 is an abundant number, because the sum of its proper divisors (79283776) is greater than itself. Its abundance is 7142912
Bases of 72140864
- Binary: 1000100110011001000010000002
- Hexadecimal: 0x44CC840
- Base-36: 16Y88W
Squares and roots of 72140864
- 72140864 squared (721408642) is 5204304258666496
- 72140864 cubed (721408643) is 375443005739080509292544
-
The
square root of 72140864 is 8493.5778091449 -
The
cube root of 72140864 is 416.2878924343
Scales and comparisons
How big is 72140864?- 72,140,864 seconds is equal to 2 years, 15 weeks, 1 day, 23 hours, 7 minutes, 44 seconds.
-
To count from 1 to 72,140,864 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 72140864 cubic inches would be around 34.7 feet tall.
Recreational maths with 72140864
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