381489900
381,489,900 is an even composite number composed of five prime numbers multiplied together.
381489900 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 381489900:
22 × 3 × 52 × 11 × 115603
(2 × 2 × 3 × 5 × 5 × 11 × 115603)See below for interesting mathematical facts about the number 381489900 from the Numbermatics database.
Names of 381489900
- Cardinal: 381489900 can be written as Three hundred eighty-one million, four hundred eighty-nine thousand, nine hundred.
Scientific notation
- Scientific notation: 3.814899 × 108
Factors of 381489900
Divisors of 381489900
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 10 11 12 15 20 22 25 30 33 44 50 55 60 66 75 100 110 132 150 165 220 275 300 330 550 660 825 1100 1650 3300 115603 231206 346809 462412 578015 693618 1156030 1271633 1387236 1734045 2312060 2543266 2890075 3468090 3814899 5086532 5780150 6358165 6936180 7629798 8670225 11560300 12716330 15259596 17340450 19074495 25432660 31790825 34680900 38148990 63581650 76297980 95372475 127163300 190744950 381489900
- Sum of all divisors σ(n): 1204131264
- Sum of proper divisors (its aliquot sum) s(n): 822641364
- 381489900 is an abundant number, because the sum of its proper divisors (822641364) is greater than itself. Its abundance is 441151464
Bases of 381489900
- Binary: 101101011110100010010111011002
- Hexadecimal: 0x16BD12EC
- Base-36: 6B4NHO
Squares and roots of 381489900
- 381489900 squared (3814899002) is 145534543802010000
- 381489900 cubed (3814899003) is 55519958561574414699000000
-
The
square root of 381489900 is 19531.7664331723 -
The
cube root of 381489900 is 725.2610395713
Scales and comparisons
How big is 381489900?- 381,489,900 seconds is equal to 12 years, 6 weeks, 5 days, 9 hours, 25 minutes.
-
To count from 1 to 381,489,900 would take you about eighteen 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 381489900 cubic inches would be around 60.4 feet tall.
Recreational maths with 381489900
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