640164512
640,164,512 is an even composite number composed of five prime numbers multiplied together.
640164512 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 640164512:
25 × 13 × 17 × 131 × 691
(2 × 2 × 2 × 2 × 2 × 13 × 17 × 131 × 691)See below for interesting mathematical facts about the number 640164512 from the Numbermatics database.
Names of 640164512
- Cardinal: 640164512 can be written as Six hundred forty million, one hundred sixty-four thousand, five hundred twelve.
Scientific notation
- Scientific notation: 6.40164512 × 108
Factors of 640164512
Divisors of 640164512
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 4 8 13 16 17 26 32 34 52 68 104 131 136 208 221 262 272 416 442 524 544 691 884 1048 1382 1703 1768 2096 2227 2764 3406 3536 4192 4454 5528 6812 7072 8908 8983 11056 11747 13624 17816 17966 22112 23494 27248 28951 35632 35932 46988 54496 57902 71264 71864 90521 93976 115804 143728 152711 181042 187952 231608 287456 305422 362084 375904 463216 610844 724168 926432 1176773 1221688 1448336 1538857 2353546 2443376 2896672 3077714 4707092 4886752 6155428 9414184 12310856 18828368 20005141 24621712 37656736 40010282 49243424 80020564 160041128 320082256 640164512
- Sum of all divisors σ(n): 1450177344
- Sum of proper divisors (its aliquot sum) s(n): 810012832
- 640164512 is an abundant number, because the sum of its proper divisors (810012832) is greater than itself. Its abundance is 169848320
Bases of 640164512
- Binary: 1001100010100000100010101000002
- Hexadecimal: 0x262822A0
- Base-36: AL4Y3K
Squares and roots of 640164512
- 640164512 squared (6401645122) is 409810602424198144
- 640164512 cubed (6401645123) is 262346204313312821845065728
-
The
square root of 640164512 is 25301.4725263175 -
The
cube root of 640164512 is 861.8477093451
Scales and comparisons
How big is 640164512?- 640,164,512 seconds is equal to 20 years, 18 weeks, 3 days, 7 hours, 28 minutes, 32 seconds.
-
To count from 1 to 640,164,512 would take you about thirty 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 640164512 cubic inches would be around 71.8 feet tall.
Recreational maths with 640164512
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