138313280
138,313,280 is an even composite number composed of four prime numbers multiplied together.
138313280 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-four divisors.
Prime factorization of 138313280:
26 × 5 × 72 × 8821
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 × 8821)See below for interesting mathematical facts about the number 138313280 from the Numbermatics database.
Names of 138313280
- Cardinal: 138313280 can be written as One hundred thirty-eight million, three hundred thirteen thousand, two hundred eighty.
Scientific notation
- Scientific notation: 1.3831328 × 108
Factors of 138313280
Divisors of 138313280
- Number of divisors d(n): 84
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 140 160 196 224 245 280 320 392 448 490 560 784 980 1120 1568 1960 2240 3136 3920 7840 8821 15680 17642 35284 44105 61747 70568 88210 123494 141136 176420 246988 282272 308735 352840 432229 493976 564544 617470 705680 864458 987952 1234940 1411360 1728916 1975904 2161145 2469880 2822720 3457832 3951808 4322290 4939760 6915664 8644580 9879520 13831328 17289160 19759040 27662656 34578320 69156640 138313280
- Sum of all divisors σ(n): 383174748
- Sum of proper divisors (its aliquot sum) s(n): 244861468
- 138313280 is an abundant number, because the sum of its proper divisors (244861468) is greater than itself. Its abundance is 106548188
Bases of 138313280
- Binary: 10000011111001111110010000002
- Hexadecimal: 0x83E7E40
- Base-36: 2ACJ7K
Squares and roots of 138313280
- 138313280 squared (1383132802) is 19130563424358400
- 138313280 cubed (1383132803) is 2646010975471042199552000
-
The
square root of 138313280 is 11760.6666477713 -
The
cube root of 138313280 is 517.1556734583
Scales and comparisons
How big is 138313280?- 138,313,280 seconds is equal to 4 years, 20 weeks, 4 days, 20 hours, 21 minutes, 20 seconds.
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To count from 1 to 138,313,280 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 138313280 cubic inches would be around 43.1 feet tall.
Recreational maths with 138313280
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