64145664
64,145,664 is an even composite number composed of four prime numbers multiplied together.
64145664 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 64145664:
28 × 32 × 11 × 2531
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 11 × 2531)See below for interesting mathematical facts about the number 64145664 from the Numbermatics database.
Names of 64145664
- Cardinal: 64145664 can be written as Sixty-four million, one hundred forty-five thousand, six hundred sixty-four.
Scientific notation
- Scientific notation: 6.4145664 × 107
Factors of 64145664
Divisors of 64145664
- Number of divisors d(n): 108
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Complete list of divisors:
1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 64 66 72 88 96 99 128 132 144 176 192 198 256 264 288 352 384 396 528 576 704 768 792 1056 1152 1408 1584 2112 2304 2531 2816 3168 4224 5062 6336 7593 8448 10124 12672 15186 20248 22779 25344 27841 30372 40496 45558 55682 60744 80992 83523 91116 111364 121488 161984 167046 182232 222728 242976 250569 323968 334092 364464 445456 485952 501138 647936 668184 728928 890912 971904 1002276 1336368 1457856 1781824 1943808 2004552 2672736 2915712 3563648 4009104 5345472 5831424 7127296 8018208 10690944 16036416 21381888 32072832 64145664
- Sum of all divisors σ(n): 201840912
- Sum of proper divisors (its aliquot sum) s(n): 137695248
- 64145664 is an abundant number, because the sum of its proper divisors (137695248) is greater than itself. Its abundance is 73549584
Bases of 64145664
- Binary: 111101001011001001000000002
- Hexadecimal: 0x3D2C900
- Base-36: 126V40
Squares and roots of 64145664
- 64145664 squared (641456642) is 4114666210000896
- 64145664 cubed (641456643) is 263937996178870914514944
-
The
square root of 64145664 is 8009.0988257107 -
The
cube root of 64145664 is 400.3032367273
Scales and comparisons
How big is 64145664?- 64,145,664 seconds is equal to 2 years, 2 weeks, 10 hours, 14 minutes, 24 seconds.
-
To count from 1 to 64,145,664 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 64145664 cubic inches would be around 33.4 feet tall.
Recreational maths with 64145664
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