138642075
138,642,075 is an odd composite number composed of six prime numbers multiplied together.
138642075 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 138642075:
32 × 52 × 11 × 13 × 31 × 139
(3 × 3 × 5 × 5 × 11 × 13 × 31 × 139)See below for interesting mathematical facts about the number 138642075 from the Numbermatics database.
Names of 138642075
- Cardinal: 138642075 can be written as One hundred thirty-eight million, six hundred forty-two thousand and seventy-five.
Scientific notation
- Scientific notation: 1.38642075 × 108
Factors of 138642075
Divisors of 138642075
- Number of divisors d(n): 144
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Complete list of divisors:
1 3 5 9 11 13 15 25 31 33 39 45 55 65 75 93 99 117 139 143 155 165 195 225 275 279 325 341 403 417 429 465 495 585 695 715 775 825 975 1023 1209 1251 1287 1395 1529 1705 1807 2015 2085 2145 2325 2475 2925 3069 3475 3575 3627 4309 4433 4587 5115 5421 6045 6255 6435 6975 7645 8525 9035 10075 10425 10725 12927 13299 13761 15345 16263 18135 19877 21545 22165 22935 25575 27105 30225 31275 32175 38225 38781 39897 45175 47399 56017 59631 64635 66495 68805 76725 81315 90675 99385 107725 110825 114675 135525 142197 168051 178893 193905 199485 236995 280085 298155 323175 332475 344025 406575 426591 496925 504153 616187 710985 840255 894465 969525 997425 1184975 1400425 1490775 1848561 2132955 2520765 3080935 3554925 4201275 4472325 5545683 9242805 10664775 12603825 15404675 27728415 46214025 138642075
- Sum of all divisors σ(n): 303313920
- Sum of proper divisors (its aliquot sum) s(n): 164671845
- 138642075 is an abundant number, because the sum of its proper divisors (164671845) is greater than itself. Its abundance is 26029770
Bases of 138642075
- Binary: 10000100001110000010100110112
- Hexadecimal: 0x843829B
- Base-36: 2AJKWR
Squares and roots of 138642075
- 138642075 squared (1386420752) is 19221624960305625
- 138642075 cubed (1386420753) is 2664925969368564484171875
-
The
square root of 138642075 is 11774.6369370779 -
The
cube root of 138642075 is 517.5651391785
Scales and comparisons
How big is 138642075?- 138,642,075 seconds is equal to 4 years, 21 weeks, 1 day, 15 hours, 41 minutes, 15 seconds.
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To count from 1 to 138,642,075 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 138642075 cubic inches would be around 43.1 feet tall.
Recreational maths with 138642075
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