138665982
138,665,982 is an even composite number composed of six prime numbers multiplied together.
138665982 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 138665982:
2 × 3 × 73 × 13 × 71 × 73
(2 × 3 × 7 × 7 × 7 × 13 × 71 × 73)See below for interesting mathematical facts about the number 138665982 from the Numbermatics database.
Names of 138665982
- Cardinal: 138665982 can be written as One hundred thirty-eight million, six hundred sixty-five thousand, nine hundred eighty-two.
Scientific notation
- Scientific notation: 1.38665982 × 108
Factors of 138665982
Divisors of 138665982
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 6 7 13 14 21 26 39 42 49 71 73 78 91 98 142 146 147 182 213 219 273 294 343 426 438 497 511 546 637 686 923 949 994 1022 1029 1274 1491 1533 1846 1898 1911 2058 2769 2847 2982 3066 3479 3577 3822 4459 5183 5538 5694 6461 6643 6958 7154 8918 10366 10437 10731 12922 13286 13377 15549 19383 19929 20874 21462 24353 25039 26754 31098 36281 38766 39858 45227 46501 48706 50078 67379 72562 73059 75117 90454 93002 108843 134758 135681 139503 146118 150234 202137 217686 253967 271362 279006 316589 325507 404274 471653 507934 633178 651014 761901 943306 949767 976521 1414959 1523802 1777769 1899534 1953042 2829918 3301571 3555538 5333307 6603142 9904713 10666614 19809426 23110997 46221994 69332991 138665982
- Sum of all divisors σ(n): 358041600
- Sum of proper divisors (its aliquot sum) s(n): 219375618
- 138665982 is an abundant number, because the sum of its proper divisors (219375618) is greater than itself. Its abundance is 80709636
Bases of 138665982
- Binary: 10000100001111011111111111102
- Hexadecimal: 0x843DFFE
- Base-36: 2AK3CU
Squares and roots of 138665982
- 138665982 squared (1386659822) is 19228254564024324
- 138665982 cubed (1386659823) is 2666304801266414759346168
-
The
square root of 138665982 is 11775.6520838551 -
The
cube root of 138665982 is 517.5948865661
Scales and comparisons
How big is 138665982?- 138,665,982 seconds is equal to 4 years, 21 weeks, 1 day, 22 hours, 19 minutes, 42 seconds.
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To count from 1 to 138,665,982 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 138665982 cubic inches would be around 43.1 feet tall.
Recreational maths with 138665982
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