138945807
138,945,807 is an odd composite number composed of six prime numbers multiplied together.
138945807 is an odd 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 138945807:
33 × 7 × 11 × 13 × 53 × 97
(3 × 3 × 3 × 7 × 11 × 13 × 53 × 97)See below for interesting mathematical facts about the number 138945807 from the Numbermatics database.
Names of 138945807
- Cardinal: 138945807 can be written as One hundred thirty-eight million, nine hundred forty-five thousand, eight hundred seven.
Scientific notation
- Scientific notation: 1.38945807 × 108
Factors of 138945807
Divisors of 138945807
- Number of divisors d(n): 128
-
Complete list of divisors:
1 3 7 9 11 13 21 27 33 39 53 63 77 91 97 99 117 143 159 189 231 273 291 297 351 371 429 477 583 679 689 693 819 873 1001 1067 1113 1261 1287 1431 1749 2037 2067 2079 2457 2619 3003 3201 3339 3783 3861 4081 4823 5141 5247 6111 6201 7469 7579 8827 9009 9603 10017 11349 12243 13871 14469 15423 15741 18333 18603 22407 22737 26481 27027 28809 34047 35987 36729 41613 43407 46269 53053 56551 66833 67221 68211 79443 97097 107961 110187 124839 130221 138807 159159 169653 200499 201663 204633 238329 291291 323883 374517 395857 467831 477477 508959 601497 735163 873873 971649 1187571 1403493 1432431 1526877 1804491 2205489 2621619 3562713 4210479 5146141 6616467 10688139 12631437 15438423 19849401 46315269 138945807
- Sum of all divisors σ(n): 284497920
- Sum of proper divisors (its aliquot sum) s(n): 145552113
- 138945807 is an abundant number, because the sum of its proper divisors (145552113) is greater than itself. Its abundance is 6606306
Bases of 138945807
- Binary: 10000100100000100101000011112
- Hexadecimal: 0x848250F
- Base-36: 2AQ39R
Squares and roots of 138945807
- 138945807 squared (1389458072) is 19305937282881249
- 138945807 cubed (1389458073) is 2682479035661322427472943
-
The
square root of 138945807 is 11787.5276033611 -
The
cube root of 138945807 is 517.9428177861
Scales and comparisons
How big is 138945807?- 138,945,807 seconds is equal to 4 years, 21 weeks, 5 days, 4 hours, 3 minutes, 27 seconds.
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To count from 1 to 138,945,807 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 138945807 cubic inches would be around 43.2 feet tall.
Recreational maths with 138945807
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The information we have on file for 138945807 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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