138393450
138,393,450 is an even composite number composed of six prime numbers multiplied together.
138393450 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 138393450:
2 × 32 × 52 × 13 × 41 × 577
(2 × 3 × 3 × 5 × 5 × 13 × 41 × 577)See below for interesting mathematical facts about the number 138393450 from the Numbermatics database.
Names of 138393450
- Cardinal: 138393450 can be written as One hundred thirty-eight million, three hundred ninety-three thousand, four hundred fifty.
Scientific notation
- Scientific notation: 1.3839345 × 108
Factors of 138393450
Divisors of 138393450
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 5 6 9 10 13 15 18 25 26 30 39 41 45 50 65 75 78 82 90 117 123 130 150 195 205 225 234 246 325 369 390 410 450 533 577 585 615 650 738 975 1025 1066 1154 1170 1230 1599 1731 1845 1950 2050 2665 2885 2925 3075 3198 3462 3690 4797 5193 5330 5770 5850 6150 7501 7995 8655 9225 9594 10386 13325 14425 15002 15990 17310 18450 22503 23657 23985 25965 26650 28850 37505 39975 43275 45006 47314 47970 51930 67509 70971 75010 79950 86550 112515 118285 119925 129825 135018 141942 187525 212913 225030 236570 239850 259650 307541 337545 354855 375050 425826 562575 591425 615082 675090 709710 922623 1064565 1125150 1182850 1537705 1687725 1774275 1845246 2129130 2767869 3075410 3375450 3548550 4613115 5322825 5535738 7688525 9226230 10645650 13839345 15377050 23065575 27678690 46131150 69196725 138393450
- Sum of all divisors σ(n): 410895576
- Sum of proper divisors (its aliquot sum) s(n): 272502126
- 138393450 is an abundant number, because the sum of its proper divisors (272502126) is greater than itself. Its abundance is 134108676
Bases of 138393450
- Binary: 10000011111110110111011010102
- Hexadecimal: 0x83FB76A
- Base-36: 2AE92I
Squares and roots of 138393450
- 138393450 squared (1383934502) is 19152747002902500
- 138393450 cubed (1383934503) is 2650614734708836988625000
-
The
square root of 138393450 is 11764.0745492367 -
The
cube root of 138393450 is 517.2555731507
Scales and comparisons
How big is 138393450?- 138,393,450 seconds is equal to 4 years, 20 weeks, 5 days, 18 hours, 37 minutes, 30 seconds.
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To count from 1 to 138,393,450 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 138393450 cubic inches would be around 43.1 feet tall.
Recreational maths with 138393450
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