42640128
42,640,128 is an even composite number composed of four prime numbers multiplied together.
42640128 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 42640128:
28 × 33 × 31 × 199
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 31 × 199)See below for interesting mathematical facts about the number 42640128 from the Numbermatics database.
Names of 42640128
- Cardinal: 42640128 can be written as Forty-two million, six hundred forty thousand, one hundred twenty-eight.
Scientific notation
- Scientific notation: 4.2640128 × 107
Factors of 42640128
Divisors of 42640128
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 48 54 62 64 72 93 96 108 124 128 144 186 192 199 216 248 256 279 288 372 384 398 432 496 558 576 597 744 768 796 837 864 992 1116 1152 1194 1488 1592 1674 1728 1791 1984 2232 2304 2388 2976 3184 3348 3456 3582 3968 4464 4776 5373 5952 6169 6368 6696 6912 7164 7936 8928 9552 10746 11904 12338 12736 13392 14328 17856 18507 19104 21492 23808 24676 25472 26784 28656 35712 37014 38208 42984 49352 50944 53568 55521 57312 71424 74028 76416 85968 98704 107136 111042 114624 148056 152832 166563 171936 197408 214272 222084 229248 296112 333126 343872 394816 444168 458496 592224 666252 687744 789632 888336 1184448 1332504 1375488 1579264 1776672 2368896 2665008 3553344 4737792 5330016 7106688 10660032 14213376 21320064 42640128
- Sum of all divisors σ(n): 130816000
- Sum of proper divisors (its aliquot sum) s(n): 88175872
- 42640128 is an abundant number, because the sum of its proper divisors (88175872) is greater than itself. Its abundance is 45535744
Bases of 42640128
- Binary: 101000101010100011000000002
- Hexadecimal: 0x28AA300
- Base-36: PDXC0
Squares and roots of 42640128
- 42640128 squared (426401282) is 1818180515856384
- 42640128 cubed (426401283) is 77527449923222243377152
-
The
square root of 42640128 is 6529.9408879407 -
The
cube root of 42640128 is 349.3597219283
Scales and comparisons
How big is 42640128?- 42,640,128 seconds is equal to 1 year, 18 weeks, 3 days, 12 hours, 28 minutes, 48 seconds.
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To count from 1 to 42,640,128 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 42640128 cubic inches would be around 29.1 feet tall.
Recreational maths with 42640128
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