64209942
64,209,942 is an even composite number composed of five prime numbers multiplied together.
64209942 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 64209942:
2 × 33 × 61 × 101 × 193
(2 × 3 × 3 × 3 × 61 × 101 × 193)See below for interesting mathematical facts about the number 64209942 from the Numbermatics database.
Names of 64209942
- Cardinal: 64209942 can be written as Sixty-four million, two hundred nine thousand, nine hundred forty-two.
Scientific notation
- Scientific notation: 6.4209942 × 107
Factors of 64209942
Divisors of 64209942
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 6 9 18 27 54 61 101 122 183 193 202 303 366 386 549 579 606 909 1098 1158 1647 1737 1818 2727 3294 3474 5211 5454 6161 10422 11773 12322 18483 19493 23546 35319 36966 38986 55449 58479 70638 105957 110898 116958 166347 175437 211914 317871 332694 350874 526311 635742 1052622 1189073 2378146 3567219 7134438 10701657 21403314 32104971 64209942
- Sum of all divisors σ(n): 147222720
- Sum of proper divisors (its aliquot sum) s(n): 83012778
- 64209942 is an abundant number, because the sum of its proper divisors (83012778) is greater than itself. Its abundance is 18802836
Bases of 64209942
- Binary: 111101001111000100000101102
- Hexadecimal: 0x3D3C416
- Base-36: 1288PI
Squares and roots of 64209942
- 64209942 squared (642099422) is 4122916651643364
- 64209942 cubed (642099423) is 264732239072854607124888
-
The
square root of 64209942 is 8013.1106319581 -
The
cube root of 64209942 is 400.4369017849
Scales and comparisons
How big is 64209942?- 64,209,942 seconds is equal to 2 years, 2 weeks, 1 day, 4 hours, 5 minutes, 42 seconds.
-
To count from 1 to 64,209,942 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 64209942 cubic inches would be around 33.4 feet tall.
Recreational maths with 64209942
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