Base | Representation |
---|---|
bin | 1110101011011… |
… | …01000111010100 |
3 | 22120200200001101 |
4 | 13111231013110 |
5 | 223010132244 |
6 | 20115035444 |
7 | 3023406352 |
oct | 725550724 |
9 | 276620041 |
10 | 123130324 |
11 | 6355a6a9 |
12 | 3529bb84 |
13 | 1c6819a5 |
14 | 124d27d2 |
15 | ac230d4 |
hex | 756d1d4 |
123130324 has 12 divisors (see below), whose sum is σ = 217455700. Its totient is φ = 61000128.
The previous prime is 123130243. The next prime is 123130327. The reversal of 123130324 is 423031321.
It can be written as a sum of positive squares in 2 ways, for example, as 44488900 + 78641424 = 6670^2 + 8868^2 .
It is a super-2 number, since 2×1231303242 = 30322153376689952, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123130327) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140769 + ... + 141640.
Almost surely, 2123130324 is an apocalyptic number.
It is an amenable number.
123130324 is a deficient number, since it is larger than the sum of its proper divisors (94325376).
123130324 is a wasteful number, since it uses less digits than its factorization.
123130324 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 282522 (or 282520 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 123130324 is about 11096.4104105787. The cubic root of 123130324 is about 497.4945652294.
Adding to 123130324 its reverse (423031321), we get a palindrome (546161645).
The spelling of 123130324 in words is "one hundred twenty-three million, one hundred thirty thousand, three hundred twenty-four".
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