149439920
149,439,920 is an even composite number composed of five prime numbers multiplied together.
149439920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 149439920:
24 × 5 × 7 × 59 × 4523
(2 × 2 × 2 × 2 × 5 × 7 × 59 × 4523)See below for interesting mathematical facts about the number 149439920 from the Numbermatics database.
Names of 149439920
- Cardinal: 149439920 can be written as One hundred forty-nine million, four hundred thirty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.4943992 × 108
Factors of 149439920
Divisors of 149439920
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 35 40 56 59 70 80 112 118 140 236 280 295 413 472 560 590 826 944 1180 1652 2065 2360 3304 4130 4523 4720 6608 8260 9046 16520 18092 22615 31661 33040 36184 45230 63322 72368 90460 126644 158305 180920 253288 266857 316610 361840 506576 533714 633220 1067428 1266440 1334285 1867999 2134856 2532880 2668570 3735998 4269712 5337140 7471996 9339995 10674280 14943992 18679990 21348560 29887984 37359980 74719960 149439920
- Sum of all divisors σ(n): 403902720
- Sum of proper divisors (its aliquot sum) s(n): 254462800
- 149439920 is an abundant number, because the sum of its proper divisors (254462800) is greater than itself. Its abundance is 105022880
Bases of 149439920
- Binary: 10001110100001000101101100002
- Hexadecimal: 0x8E845B0
- Base-36: 2GZ0KW
Squares and roots of 149439920
- 149439920 squared (1494399202) is 22332289689606400
- 149439920 cubed (1494399203) is 3337335584631605247488000
-
The
square root of 149439920 is 12224.5621598485 -
The
cube root of 149439920 is 530.6671555709
Scales and comparisons
How big is 149439920?- 149,439,920 seconds is equal to 4 years, 39 weeks, 15 hours, 5 minutes, 20 seconds.
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To count from 1 to 149,439,920 would take you about seven 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 149439920 cubic inches would be around 44.2 feet tall.
Recreational maths with 149439920
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