28987008
28,987,008 is an even composite number composed of five prime numbers multiplied together.
28987008 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 28987008:
27 × 3 × 19 × 29 × 137
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 19 × 29 × 137)See below for interesting mathematical facts about the number 28987008 from the Numbermatics database.
Names of 28987008
- Cardinal: 28987008 can be written as Twenty-eight million, nine hundred eighty-seven thousand and eight.
Scientific notation
- Scientific notation: 2.8987008 × 107
Factors of 28987008
Divisors of 28987008
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 6 8 12 16 19 24 29 32 38 48 57 58 64 76 87 96 114 116 128 137 152 174 192 228 232 274 304 348 384 411 456 464 548 551 608 696 822 912 928 1096 1102 1216 1392 1644 1653 1824 1856 2192 2204 2432 2603 2784 3288 3306 3648 3712 3973 4384 4408 5206 5568 6576 6612 7296 7809 7946 8768 8816 10412 11136 11919 13152 13224 15618 15892 17536 17632 20824 23838 26304 26448 31236 31784 35264 41648 47676 52608 52896 62472 63568 70528 75487 83296 95352 105792 124944 127136 150974 166592 190704 211584 226461 249888 254272 301948 333184 381408 452922 499776 508544 603896 762816 905844 999552 1207792 1525632 1811688 2415584 3623376 4831168 7246752 9662336 14493504 28987008
- Sum of all divisors σ(n): 84456000
- Sum of proper divisors (its aliquot sum) s(n): 55468992
- 28987008 is an abundant number, because the sum of its proper divisors (55468992) is greater than itself. Its abundance is 26481984
Bases of 28987008
- Binary: 11011101001001110100000002
- Hexadecimal: 0x1BA4E80
- Base-36: H9AIO
Squares and roots of 28987008
- 28987008 squared (289870082) is 840246632792064
- 28987008 cubed (289870083) is 24356235866716621504512
-
The
square root of 28987008 is 5383.9583950845 -
The
cube root of 28987008 is 307.1857957841
Scales and comparisons
How big is 28987008?- 28,987,008 seconds is equal to 47 weeks, 6 days, 11 hours, 56 minutes, 48 seconds.
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To count from 1 to 28,987,008 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 28987008 cubic inches would be around 25.6 feet tall.
Recreational maths with 28987008
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