138388495
138,388,495 is an odd composite number composed of five prime numbers multiplied together.
138388495 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 138388495:
5 × 73 × 19 × 31 × 137
(5 × 7 × 7 × 7 × 19 × 31 × 137)See below for interesting mathematical facts about the number 138388495 from the Numbermatics database.
Names of 138388495
- Cardinal: 138388495 can be written as One hundred thirty-eight million, three hundred eighty-eight thousand, four hundred ninety-five.
Scientific notation
- Scientific notation: 1.38388495 × 108
Factors of 138388495
Divisors of 138388495
- Number of divisors d(n): 64
-
Complete list of divisors:
1 5 7 19 31 35 49 95 133 137 155 217 245 343 589 665 685 931 959 1085 1519 1715 2603 2945 4123 4247 4655 4795 6517 6713 7595 10633 13015 18221 20615 21235 28861 29729 32585 33565 46991 53165 80693 91105 127547 144305 148645 202027 208103 234955 403465 564851 637735 892829 1010135 1040515 1456721 2824255 3953957 4464145 7283605 19769785 27677699 138388495
- Sum of all divisors σ(n): 211968000
- Sum of proper divisors (its aliquot sum) s(n): 73579505
- 138388495 is a deficient number, because the sum of its proper divisors (73579505) is less than itself. Its deficiency is 64808990
Bases of 138388495
- Binary: 10000011111110100100000011112
- Hexadecimal: 0x83FA40F
- Base-36: 2AE58V
Squares and roots of 138388495
- 138388495 squared (1383884952) is 19151375548365025
- 138388495 cubed (1383884953) is 2650330039318035520387375
-
The
square root of 138388495 is 11763.8639485503 -
The
cube root of 138388495 is 517.2493998529
Scales and comparisons
How big is 138388495?- 138,388,495 seconds is equal to 4 years, 20 weeks, 5 days, 17 hours, 14 minutes, 55 seconds.
-
To count from 1 to 138,388,495 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 138388495 cubic inches would be around 43.1 feet tall.
Recreational maths with 138388495
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