138915648
138,915,648 is an even composite number composed of four prime numbers multiplied together.
138915648 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred forty divisors.
Prime factorization of 138915648:
26 × 34 × 127 × 211
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 127 × 211)See below for interesting mathematical facts about the number 138915648 from the Numbermatics database.
Names of 138915648
- Cardinal: 138915648 can be written as One hundred thirty-eight million, nine hundred fifteen thousand, six hundred forty-eight.
Scientific notation
- Scientific notation: 1.38915648 × 108
Factors of 138915648
Divisors of 138915648
- Number of divisors d(n): 140
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 127 144 162 192 211 216 254 288 324 381 422 432 508 576 633 648 762 844 864 1016 1143 1266 1296 1524 1688 1728 1899 2032 2286 2532 2592 3048 3376 3429 3798 4064 4572 5064 5184 5697 6096 6752 6858 7596 8128 9144 10128 10287 11394 12192 13504 13716 15192 17091 18288 20256 20574 22788 24384 26797 27432 30384 34182 36576 40512 41148 45576 53594 54864 60768 68364 73152 80391 82296 91152 107188 109728 121536 136728 160782 164592 182304 214376 219456 241173 273456 321564 329184 364608 428752 482346 546912 643128 658368 723519 857504 964692 1093824 1286256 1447038 1715008 1929384 2170557 2572512 2894076 3858768 4341114 5145024 5788152 7717536 8682228 11576304 15435072 17364456 23152608 34728912 46305216 69457824 138915648
- Sum of all divisors σ(n): 416998912
- Sum of proper divisors (its aliquot sum) s(n): 278083264
- 138915648 is an abundant number, because the sum of its proper divisors (278083264) is greater than itself. Its abundance is 139167616
Bases of 138915648
- Binary: 10000100011110101111010000002
- Hexadecimal: 0x847AF40
- Base-36: 2APG00
Squares and roots of 138915648
- 138915648 squared (1389156482) is 19297557259259904
- 138915648 cubed (1389156483) is 2680732671487193564577792
-
The
square root of 138915648 is 11786.2482580335 -
The
cube root of 138915648 is 517.9053409019
Scales and comparisons
How big is 138915648?- 138,915,648 seconds is equal to 4 years, 21 weeks, 4 days, 19 hours, 40 minutes, 48 seconds.
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To count from 1 to 138,915,648 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 138915648 cubic inches would be around 43.2 feet tall.
Recreational maths with 138915648
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