128997225
128,997,225 is an odd composite number composed of five prime numbers multiplied together.
128997225 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 128997225:
33 × 52 × 7 × 23 × 1187
(3 × 3 × 3 × 5 × 5 × 7 × 23 × 1187)See below for interesting mathematical facts about the number 128997225 from the Numbermatics database.
Names of 128997225
- Cardinal: 128997225 can be written as One hundred twenty-eight million, nine hundred ninety-seven thousand, two hundred twenty-five.
Scientific notation
- Scientific notation: 1.28997225 × 108
Factors of 128997225
Divisors of 128997225
- Number of divisors d(n): 96
-
Complete list of divisors:
1 3 5 7 9 15 21 23 25 27 35 45 63 69 75 105 115 135 161 175 189 207 225 315 345 483 525 575 621 675 805 945 1035 1187 1449 1575 1725 2415 3105 3561 4025 4347 4725 5175 5935 7245 8309 10683 12075 15525 17805 21735 24927 27301 29675 32049 36225 41545 53415 74781 81903 89025 108675 124635 136505 160245 191107 207725 224343 245709 267075 373905 409515 573321 623175 682525 737127 801225 955535 1121715 1228545 1719963 1869525 2047575 2866605 3685635 4777675 5159889 5608575 6142725 8599815 14333025 18428175 25799445 42999075 128997225
- Sum of all divisors σ(n): 282839040
- Sum of proper divisors (its aliquot sum) s(n): 153841815
- 128997225 is an abundant number, because the sum of its proper divisors (153841815) is greater than itself. Its abundance is 24844590
Bases of 128997225
- Binary: 1111011000001010111011010012
- Hexadecimal: 0x7B05769
- Base-36: 24SUW9
Squares and roots of 128997225
- 128997225 squared (1289972252) is 16640284057700625
- 128997225 cubed (1289972253) is 2146550466655120505765625
-
The
square root of 128997225 is 11357.6945283803 -
The
cube root of 128997225 is 505.2738115815
Scales and comparisons
How big is 128997225?- 128,997,225 seconds is equal to 4 years, 5 weeks, 2 days, 33 minutes, 45 seconds.
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To count from 1 to 128,997,225 would take you about six 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 128997225 cubic inches would be around 42.1 feet tall.
Recreational maths with 128997225
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