28391040
28,391,040 is an even composite number composed of five prime numbers multiplied together.
28391040 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 28391040:
27 × 33 × 5 × 31 × 53
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 31 × 53)See below for interesting mathematical facts about the number 28391040 from the Numbermatics database.
Names of 28391040
- Cardinal: 28391040 can be written as Twenty-eight million, three hundred ninety-one thousand and forty.
Scientific notation
- Scientific notation: 2.839104 × 107
Factors of 28391040
Divisors of 28391040
- Number of divisors d(n): 256
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 31 32 36 40 45 48 53 54 60 62 64 72 80 90 93 96 106 108 120 124 128 135 144 155 159 160 180 186 192 212 216 240 248 265 270 279 288 310 318 320 360 372 384 424 432 465 477 480 496 530 540 558 576 620 636 640 720 744 795 837 848 864 930 954 960 992 1060 1080 1116 1152 1240 1272 1395 1431 1440 1488 1590 1643 1674 1696 1728 1860 1908 1920 1984 2120 2160 2232 2385 2480 2544 2790 2862 2880 2976 3180 3286 3348 3392 3456 3720 3816 3968 4185 4240 4320 4464 4770 4929 4960 5088 5580 5724 5760 5952 6360 6572 6696 6784 7155 7440 7632 8215 8370 8480 8640 8928 9540 9858 9920 10176 11160 11448 11904 12720 13144 13392 14310 14787 14880 15264 16430 16740 16960 17280 17856 19080 19716 19840 20352 22320 22896 24645 25440 26288 26784 28620 29574 29760 30528 32860 33480 33920 35712 38160 39432 44361 44640 45792 49290 50880 52576 53568 57240 59148 59520 61056 65720 66960 73935 76320 78864 88722 89280 91584 98580 101760 105152 107136 114480 118296 131440 133920 147870 152640 157728 177444 178560 183168 197160 210304 221805 228960 236592 262880 267840 295740 305280 315456 354888 394320 443610 457920 473184 525760 535680 591480 630912 709776 788640 887220 915840 946368 1051520 1182960 1419552 1577280 1774440 1892736 2365920 2839104 3154560 3548880 4731840 5678208 7097760 9463680 14195520 28391040
- Sum of all divisors σ(n): 105753600
- Sum of proper divisors (its aliquot sum) s(n): 77362560
- 28391040 is an abundant number, because the sum of its proper divisors (77362560) is greater than itself. Its abundance is 48971520
Bases of 28391040
- Binary: 11011000100110110100000002
- Hexadecimal: 0x1B13680
- Base-36: GWIO0
Squares and roots of 28391040
- 28391040 squared (283910402) is 806051152281600
- 28391040 cubed (283910403) is 22884630506472996864000
-
The
square root of 28391040 is 5328.3243144539 -
The
cube root of 28391040 is 305.0659715753
Scales and comparisons
How big is 28391040?- 28,391,040 seconds is equal to 46 weeks, 6 days, 14 hours, 24 minutes.
-
To count from 1 to 28,391,040 would take you about eighteen weeks!
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 28391040 cubic inches would be around 25.4 feet tall.
Recreational maths with 28391040
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The information we have on file for 28391040 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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