91389025
91,389,025 is an odd composite number composed of five prime numbers multiplied together.
91389025 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 91389025:
52 × 7 × 13 × 172 × 139
(5 × 5 × 7 × 13 × 17 × 17 × 139)See below for interesting mathematical facts about the number 91389025 from the Numbermatics database.
Names of 91389025
- Cardinal: 91389025 can be written as Ninety-one million, three hundred eighty-nine thousand and twenty-five.
Scientific notation
- Scientific notation: 9.1389025 × 107
Factors of 91389025
Divisors of 91389025
- Number of divisors d(n): 72
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Complete list of divisors:
1 5 7 13 17 25 35 65 85 91 119 139 175 221 289 325 425 455 595 695 973 1105 1445 1547 1807 2023 2275 2363 2975 3475 3757 4865 5525 7225 7735 9035 10115 11815 12649 16541 18785 24325 26299 30719 38675 40171 45175 50575 59075 63245 82705 93925 131495 153595 200855 215033 281197 316225 413525 522223 657475 767975 1004275 1075165 1405985 2611115 3655561 5375825 7029925 13055575 18277805 91389025
- Sum of all divisors σ(n): 149226560
- Sum of proper divisors (its aliquot sum) s(n): 57837535
- 91389025 is a deficient number, because the sum of its proper divisors (57837535) is less than itself. Its deficiency is 33551490
Bases of 91389025
- Binary: 1010111001001111100011000012
- Hexadecimal: 0x5727C61
- Base-36: 1IES81
Squares and roots of 91389025
- 91389025 squared (913890252) is 8351953890450625
- 91389025 cubed (913890253) is 763276922893239429390625
-
The
square root of 91389025 is 9559.7607187631 -
The
cube root of 91389025 is 450.4341899833
Scales and comparisons
How big is 91389025?- 91,389,025 seconds is equal to 2 years, 47 weeks, 17 hours, 50 minutes, 25 seconds.
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To count from 1 to 91,389,025 would take you about four 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 91389025 cubic inches would be around 37.5 feet tall.
Recreational maths with 91389025
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