28995840
28,995,840 is an even composite number composed of four prime numbers multiplied together.
28995840 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 28995840:
28 × 33 × 5 × 839
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 839)See below for interesting mathematical facts about the number 28995840 from the Numbermatics database.
Names of 28995840
- Cardinal: 28995840 can be written as Twenty-eight million, nine hundred ninety-five thousand, eight hundred forty.
Scientific notation
- Scientific notation: 2.899584 × 107
Factors of 28995840
Divisors of 28995840
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 128 135 144 160 180 192 216 240 256 270 288 320 360 384 432 480 540 576 640 720 768 839 864 960 1080 1152 1280 1440 1678 1728 1920 2160 2304 2517 2880 3356 3456 3840 4195 4320 5034 5760 6712 6912 7551 8390 8640 10068 11520 12585 13424 15102 16780 17280 20136 22653 25170 26848 30204 33560 34560 37755 40272 45306 50340 53696 60408 67120 75510 80544 90612 100680 107392 113265 120816 134240 151020 161088 181224 201360 214784 226530 241632 268480 302040 322176 362448 402720 453060 483264 536960 604080 644352 724896 805440 906120 966528 1073920 1208160 1449792 1610880 1812240 1933056 2416320 2899584 3221760 3624480 4832640 5799168 7248960 9665280 14497920 28995840
- Sum of all divisors σ(n): 103017600
- Sum of proper divisors (its aliquot sum) s(n): 74021760
- 28995840 is an abundant number, because the sum of its proper divisors (74021760) is greater than itself. Its abundance is 45025920
Bases of 28995840
- Binary: 11011101001110001000000002
- Hexadecimal: 0x1BA7100
- Base-36: H9HC0
Squares and roots of 28995840
- 28995840 squared (289958402) is 840758737305600
- 28995840 cubed (289958403) is 24378505825515208704000
-
The
square root of 28995840 is 5384.7785469785 -
The
cube root of 28995840 is 307.2169912475
Scales and comparisons
How big is 28995840?- 28,995,840 seconds is equal to 47 weeks, 6 days, 14 hours, 24 minutes.
-
To count from 1 to 28,995,840 would take you about nineteen 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 28995840 cubic inches would be around 25.6 feet tall.
Recreational maths with 28995840
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