42729768
42,729,768 is an even composite number composed of five prime numbers multiplied together.
42729768 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 42729768:
23 × 34 × 23 × 47 × 61
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 23 × 47 × 61)See below for interesting mathematical facts about the number 42729768 from the Numbermatics database.
Names of 42729768
- Cardinal: 42729768 can be written as Forty-two million, seven hundred twenty-nine thousand, seven hundred sixty-eight.
Scientific notation
- Scientific notation: 4.2729768 × 107
Factors of 42729768
Divisors of 42729768
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 4 6 8 9 12 18 23 24 27 36 46 47 54 61 69 72 81 92 94 108 122 138 141 162 183 184 188 207 216 244 276 282 324 366 376 414 423 488 549 552 564 621 648 732 828 846 1081 1098 1128 1242 1269 1403 1464 1647 1656 1692 1863 2162 2196 2484 2538 2806 2867 3243 3294 3384 3726 3807 4209 4324 4392 4941 4968 5076 5612 5734 6486 6588 7452 7614 8418 8601 8648 9729 9882 10152 11224 11468 12627 12972 13176 14904 15228 16836 17202 19458 19764 22936 25254 25803 25944 29187 30456 33672 34404 37881 38916 39528 50508 51606 58374 65941 68808 75762 77409 77832 87561 101016 103212 113643 116748 131882 151524 154818 175122 197823 206424 227286 232227 233496 263764 303048 309636 350244 395646 454572 464454 527528 593469 619272 700488 791292 909144 928908 1186938 1582584 1780407 1857816 2373876 3560814 4747752 5341221 7121628 10682442 14243256 21364884 42729768
- Sum of all divisors σ(n): 129634560
- Sum of proper divisors (its aliquot sum) s(n): 86904792
- 42729768 is an abundant number, because the sum of its proper divisors (86904792) is greater than itself. Its abundance is 44175024
Bases of 42729768
- Binary: 101000110000000001001010002
- Hexadecimal: 0x28C0128
- Base-36: PFUI0
Squares and roots of 42729768
- 42729768 squared (427297682) is 1825833073333824
- 42729768 cubed (427297683) is 78017423630281286072832
-
The
square root of 42729768 is 6536.8010525027 -
The
cube root of 42729768 is 349.6043638301
Scales and comparisons
How big is 42729768?- 42,729,768 seconds is equal to 1 year, 18 weeks, 4 days, 13 hours, 22 minutes, 48 seconds.
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To count from 1 to 42,729,768 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 42729768 cubic inches would be around 29.1 feet tall.
Recreational maths with 42729768
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