138009420
138,009,420 is an even composite number composed of five prime numbers multiplied together.
138009420 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 138009420:
22 × 35 × 5 × 73 × 389
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 73 × 389)See below for interesting mathematical facts about the number 138009420 from the Numbermatics database.
Names of 138009420
- Cardinal: 138009420 can be written as One hundred thirty-eight million, nine thousand, four hundred twenty.
Scientific notation
- Scientific notation: 1.3800942 × 108
Factors of 138009420
Divisors of 138009420
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 73 81 90 108 135 146 162 180 219 243 270 292 324 365 389 405 438 486 540 657 730 778 810 876 972 1095 1167 1215 1314 1460 1556 1620 1945 1971 2190 2334 2430 2628 3285 3501 3890 3942 4380 4668 4860 5835 5913 6570 7002 7780 7884 9855 10503 11670 11826 13140 14004 17505 17739 19710 21006 23340 23652 28397 29565 31509 35010 35478 39420 42012 52515 56794 59130 63018 70020 70956 85191 88695 94527 105030 113588 118260 126036 141985 157545 170382 177390 189054 210060 255573 283970 315090 340764 354780 378108 425955 472635 511146 567940 630180 766719 851910 945270 1022292 1277865 1533438 1703820 1890540 2300157 2555730 3066876 3833595 4600314 5111460 6900471 7667190 9200628 11500785 13800942 15334380 23001570 27601884 34502355 46003140 69004710 138009420
- Sum of all divisors σ(n): 441211680
- Sum of proper divisors (its aliquot sum) s(n): 303202260
- 138009420 is an abundant number, because the sum of its proper divisors (303202260) is greater than itself. Its abundance is 165192840
Bases of 138009420
- Binary: 10000011100111011011010011002
- Hexadecimal: 0x839DB4C
- Base-36: 2A60R0
Squares and roots of 138009420
- 138009420 squared (1380094202) is 19046600008736400
- 138009420 cubed (1380094203) is 2628610220177705496888000
-
The
square root of 138009420 is 11747.7410594547 -
The
cube root of 138009420 is 516.7766832433
Scales and comparisons
How big is 138009420?- 138,009,420 seconds is equal to 4 years, 20 weeks, 1 day, 7 hours, 57 minutes.
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To count from 1 to 138,009,420 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 138009420 cubic inches would be around 43.1 feet tall.
Recreational maths with 138009420
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