642745532
642,745,532 is an even composite number composed of five prime numbers multiplied together.
642745532 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 642745532:
22 × 11 × 133 × 61 × 109
(2 × 2 × 11 × 13 × 13 × 13 × 61 × 109)See below for interesting mathematical facts about the number 642745532 from the Numbermatics database.
Names of 642745532
- Cardinal: 642745532 can be written as Six hundred forty-two million, seven hundred forty-five thousand, five hundred thirty-two.
Scientific notation
- Scientific notation: 6.42745532 × 108
Factors of 642745532
Divisors of 642745532
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 4 11 13 22 26 44 52 61 109 122 143 169 218 244 286 338 436 572 671 676 793 1199 1342 1417 1586 1859 2197 2398 2684 2834 3172 3718 4394 4796 5668 6649 7436 8723 8788 10309 13298 15587 17446 18421 20618 24167 26596 31174 34892 36842 41236 48334 62348 73139 73684 86437 96668 113399 134017 146278 172874 202631 226798 239473 268034 292556 345748 405262 453596 478946 536068 810524 950807 957892 1123681 1474187 1901614 2247362 2634203 2948374 3803228 4494724 5268406 5896748 10536812 12360491 14607853 24720982 29215706 49441964 58431412 160686383 321372766 642745532
- Sum of all divisors σ(n): 1363454400
- Sum of proper divisors (its aliquot sum) s(n): 720708868
- 642745532 is an abundant number, because the sum of its proper divisors (720708868) is greater than itself. Its abundance is 77963336
Bases of 642745532
- Binary: 1001100100111110000100101111002
- Hexadecimal: 0x264F84BC
- Base-36: AMO9MK
Squares and roots of 642745532
- 642745532 squared (6427455322) is 413121818905963024
- 642745532 cubed (6427455323) is 265532203273520861833208768
-
The
square root of 642745532 is 25352.4265505297 -
The
cube root of 642745532 is 863.0044241679
Scales and comparisons
How big is 642745532?- 642,745,532 seconds is equal to 20 years, 22 weeks, 5 days, 4 hours, 25 minutes, 32 seconds.
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To count from 1 to 642,745,532 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 642745532 cubic inches would be around 71.9 feet tall.
Recreational maths with 642745532
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