138731340
138,731,340 is an even composite number composed of six prime numbers multiplied together.
138731340 is an even 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 138731340:
22 × 3 × 5 × 112 × 97 × 197
(2 × 2 × 3 × 5 × 11 × 11 × 97 × 197)See below for interesting mathematical facts about the number 138731340 from the Numbermatics database.
Names of 138731340
- Cardinal: 138731340 can be written as One hundred thirty-eight million, seven hundred thirty-one thousand, three hundred forty.
Scientific notation
- Scientific notation: 1.3873134 × 108
Factors of 138731340
Divisors of 138731340
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 97 110 121 132 165 194 197 220 242 291 330 363 388 394 484 485 582 591 605 660 726 788 970 985 1067 1164 1182 1210 1452 1455 1815 1940 1970 2134 2167 2364 2420 2910 2955 3201 3630 3940 4268 4334 5335 5820 5910 6402 6501 7260 8668 10670 10835 11737 11820 12804 13002 16005 19109 21340 21670 23474 23837 26004 32010 32505 35211 38218 43340 46948 47674 57327 58685 64020 65010 70422 71511 76436 95348 95545 114654 117370 119185 130020 140844 143022 176055 191090 210199 229308 234740 238370 286044 286635 352110 357555 382180 420398 476740 573270 630597 704220 715110 840796 1050995 1146540 1261194 1430220 2101990 2312189 2522388 3152985 4203980 4624378 6305970 6936567 9248756 11560945 12611940 13873134 23121890 27746268 34682835 46243780 69365670 138731340
- Sum of all divisors σ(n): 433562976
- Sum of proper divisors (its aliquot sum) s(n): 294831636
- 138731340 is an abundant number, because the sum of its proper divisors (294831636) is greater than itself. Its abundance is 156100296
Bases of 138731340
- Binary: 10000100010011011111010011002
- Hexadecimal: 0x844DF4C
- Base-36: 2ALHSC
Squares and roots of 138731340
- 138731340 squared (1387313402) is 19246384698195600
- 138731340 cubed (1387313403) is 2670076739336171170104000
-
The
square root of 138731340 is 11778.4268898695 -
The
cube root of 138731340 is 517.6761938257
Scales and comparisons
How big is 138731340?- 138,731,340 seconds is equal to 4 years, 21 weeks, 2 days, 16 hours, 29 minutes.
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To count from 1 to 138,731,340 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 138731340 cubic inches would be around 43.1 feet tall.
Recreational maths with 138731340
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