138388250
138,388,250 is an even composite number composed of six prime numbers multiplied together.
138388250 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 138388250:
2 × 53 × 72 × 11 × 13 × 79
(2 × 5 × 5 × 5 × 7 × 7 × 11 × 13 × 79)See below for interesting mathematical facts about the number 138388250 from the Numbermatics database.
Names of 138388250
- Cardinal: 138388250 can be written as One hundred thirty-eight million, three hundred eighty-eight thousand, two hundred fifty.
Scientific notation
- Scientific notation: 1.3838825 × 108
Factors of 138388250
Divisors of 138388250
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 5 7 10 11 13 14 22 25 26 35 49 50 55 65 70 77 79 91 98 110 125 130 143 154 158 175 182 245 250 275 286 325 350 385 395 455 490 539 550 553 637 650 715 770 790 869 875 910 1001 1027 1078 1106 1225 1274 1375 1430 1625 1738 1750 1925 1975 2002 2054 2275 2450 2695 2750 2765 3185 3250 3575 3850 3871 3950 4345 4550 5005 5135 5390 5530 6083 6125 6370 7007 7150 7189 7742 8690 9625 9875 10010 10270 11297 11375 12166 12250 13475 13825 14014 14378 15925 17875 19250 19355 19750 21725 22594 22750 25025 25675 26950 27650 30415 31850 35035 35750 35945 38710 42581 43450 50050 50323 51350 56485 60830 67375 69125 70070 71890 79079 79625 85162 96775 100646 108625 112970 125125 128375 134750 138250 152075 158158 159250 175175 179725 193550 212905 217250 250250 251615 256750 282425 304150 350350 359450 395395 425810 483875 503230 553553 564850 760375 790790 875875 898625 967750 1064525 1107106 1258075 1412125 1520750 1751750 1797250 1976975 2129050 2516150 2767765 2824250 3953950 5322625 5535530 6290375 9884875 10645250 12580750 13838825 19769750 27677650 69194125 138388250
- Sum of all divisors σ(n): 358525440
- Sum of proper divisors (its aliquot sum) s(n): 220137190
- 138388250 is an abundant number, because the sum of its proper divisors (220137190) is greater than itself. Its abundance is 81748940
Bases of 138388250
- Binary: 10000011111110100011000110102
- Hexadecimal: 0x83FA31A
- Base-36: 2AE522
Squares and roots of 138388250
- 138388250 squared (1383882502) is 19151307738062500
- 138388250 cubed (1383882503) is 2650315963081927765625000
-
The
square root of 138388250 is 11763.8535353003 -
The
cube root of 138388250 is 517.2490946103
Scales and comparisons
How big is 138388250?- 138,388,250 seconds is equal to 4 years, 20 weeks, 5 days, 17 hours, 10 minutes, 50 seconds.
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To count from 1 to 138,388,250 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 138388250 cubic inches would be around 43.1 feet tall.
Recreational maths with 138388250
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