42139944
42,139,944 is an even composite number composed of five prime numbers multiplied together.
42139944 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 42139944:
23 × 32 × 7 × 112 × 691
(2 × 2 × 2 × 3 × 3 × 7 × 11 × 11 × 691)See below for interesting mathematical facts about the number 42139944 from the Numbermatics database.
Names of 42139944
- Cardinal: 42139944 can be written as Forty-two million, one hundred thirty-nine thousand, nine hundred forty-four.
Scientific notation
- Scientific notation: 4.2139944 × 107
Factors of 42139944
Divisors of 42139944
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 6 7 8 9 11 12 14 18 21 22 24 28 33 36 42 44 56 63 66 72 77 84 88 99 121 126 132 154 168 198 231 242 252 264 308 363 396 462 484 504 616 691 693 726 792 847 924 968 1089 1382 1386 1452 1694 1848 2073 2178 2541 2764 2772 2904 3388 4146 4356 4837 5082 5528 5544 6219 6776 7601 7623 8292 8712 9674 10164 12438 14511 15202 15246 16584 19348 20328 22803 24876 29022 30404 30492 38696 43533 45606 49752 53207 58044 60808 60984 68409 83611 87066 91212 106414 116088 136818 159621 167222 174132 182424 212828 250833 273636 319242 334444 348264 425656 478863 501666 547272 585277 638484 668888 752499 957726 1003332 1170554 1276968 1504998 1755831 1915452 2006664 2341108 3009996 3511662 3830904 4682216 5267493 6019992 7023324 10534986 14046648 21069972 42139944
- Sum of all divisors σ(n): 143576160
- Sum of proper divisors (its aliquot sum) s(n): 101436216
- 42139944 is an abundant number, because the sum of its proper divisors (101436216) is greater than itself. Its abundance is 59296272
Bases of 42139944
- Binary: 101000001100000001001010002
- Hexadecimal: 0x2830128
- Base-36: P37E0
Squares and roots of 42139944
- 42139944 squared (421399442) is 1775774880323136
- 42139944 cubed (421399443) is 74831054013423652944384
-
The
square root of 42139944 is 6491.5286335347 -
The
cube root of 42139944 is 347.9883071775
Scales and comparisons
How big is 42139944?- 42,139,944 seconds is equal to 1 year, 17 weeks, 4 days, 17 hours, 32 minutes, 24 seconds.
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To count from 1 to 42,139,944 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 42139944 cubic inches would be around 29 feet tall.
Recreational maths with 42139944
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