123428864
123,428,864 is an even composite number composed of four prime numbers multiplied together.
123428864 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.
Prime factorization of 123428864:
213 × 13 × 19 × 61
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 19 × 61)See below for interesting mathematical facts about the number 123428864 from the Numbermatics database.
Names of 123428864
- Cardinal: 123428864 can be written as One hundred twenty-three million, four hundred twenty-eight thousand, eight hundred sixty-four.
Scientific notation
- Scientific notation: 1.23428864 × 108
Factors of 123428864
Divisors of 123428864
- Number of divisors d(n): 112
-
Complete list of divisors:
1 2 4 8 13 16 19 26 32 38 52 61 64 76 104 122 128 152 208 244 247 256 304 416 488 494 512 608 793 832 976 988 1024 1159 1216 1586 1664 1952 1976 2048 2318 2432 3172 3328 3904 3952 4096 4636 4864 6344 6656 7808 7904 8192 9272 9728 12688 13312 15067 15616 15808 18544 19456 25376 26624 30134 31232 31616 37088 38912 50752 53248 60268 62464 63232 74176 77824 101504 106496 120536 124928 126464 148352 155648 203008 241072 249856 252928 296704 406016 482144 499712 505856 593408 812032 964288 1011712 1186816 1624064 1928576 2023424 2373632 3248128 3857152 4747264 6496256 7714304 9494528 15428608 30857216 61714432 123428864
- Sum of all divisors σ(n): 284408880
- Sum of proper divisors (its aliquot sum) s(n): 160980016
- 123428864 is an abundant number, because the sum of its proper divisors (160980016) is greater than itself. Its abundance is 37551152
Bases of 123428864
- Binary: 1110101101101100000000000002
- Hexadecimal: 0x75B6000
- Base-36: 21HIBK
Squares and roots of 123428864
- 123428864 squared (1234288642) is 15234684468330496
- 123428864 cubed (1234288643) is 1880399797324477097836544
-
The
square root of 123428864 is 11109.8543644821 -
The
cube root of 123428864 is 497.8963134187
Scales and comparisons
How big is 123428864?- 123,428,864 seconds is equal to 3 years, 48 weeks, 13 hours, 47 minutes, 44 seconds.
-
To count from 1 to 123,428,864 would take you about five 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 123428864 cubic inches would be around 41.5 feet tall.
Recreational maths with 123428864
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