42939720
42,939,720 is an even composite number composed of five prime numbers multiplied together.
42939720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 42939720:
23 × 34 × 5 × 29 × 457
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 29 × 457)See below for interesting mathematical facts about the number 42939720 from the Numbermatics database.
Names of 42939720
- Cardinal: 42939720 can be written as Forty-two million, nine hundred thirty-nine thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 4.293972 × 107
Factors of 42939720
Divisors of 42939720
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 29 30 36 40 45 54 58 60 72 81 87 90 108 116 120 135 145 162 174 180 216 232 261 270 290 324 348 360 405 435 457 522 540 580 648 696 783 810 870 914 1044 1080 1160 1305 1371 1566 1620 1740 1828 2088 2285 2349 2610 2742 3132 3240 3480 3656 3915 4113 4570 4698 5220 5484 6264 6855 7830 8226 9140 9396 10440 10968 11745 12339 13253 13710 15660 16452 18280 18792 20565 23490 24678 26506 27420 31320 32904 37017 39759 41130 46980 49356 53012 54840 61695 66265 74034 79518 82260 93960 98712 106024 119277 123390 132530 148068 159036 164520 185085 198795 238554 246780 265060 296136 318072 357831 370170 397590 477108 493560 530120 596385 715662 740340 795180 954216 1073493 1192770 1431324 1480680 1590360 1789155 2146986 2385540 2862648 3578310 4293972 4771080 5367465 7156620 8587944 10734930 14313240 21469860 42939720
- Sum of all divisors σ(n): 149628600
- Sum of proper divisors (its aliquot sum) s(n): 106688880
- 42939720 is an abundant number, because the sum of its proper divisors (106688880) is greater than itself. Its abundance is 63749160
Bases of 42939720
- Binary: 101000111100110101010010002
- Hexadecimal: 0x28F3548
- Base-36: PKCI0
Squares and roots of 42939720
- 42939720 squared (429397202) is 1843819553678400
- 42939720 cubed (429397203) is 79173095365475466048000
-
The
square root of 42939720 is 6552.8406054169 -
The
cube root of 42939720 is 350.1760203055
Scales and comparisons
How big is 42939720?- 42,939,720 seconds is equal to 1 year, 18 weeks, 6 days, 23 hours, 42 minutes.
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To count from 1 to 42,939,720 would take you about two 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 42939720 cubic inches would be around 29.2 feet tall.
Recreational maths with 42939720
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