Base | Representation |
---|---|
bin | 10010100110101… |
… | …100001000011101 |
3 | 210202022221210002 |
4 | 102212230020131 |
5 | 1114401212000 |
6 | 50550024045 |
7 | 10510036124 |
oct | 2246541035 |
9 | 722287702 |
10 | 312132125 |
11 | 150210538 |
12 | 88648025 |
13 | 4c887c86 |
14 | 2d650abb |
15 | 1c6088d5 |
hex | 129ac21d |
312132125 has 16 divisors (see below), whose sum is σ = 396152640. Its totient is φ = 245467600.
The previous prime is 312132101. The next prime is 312132143. The reversal of 312132125 is 521231213.
It is not a de Polignac number, because 312132125 - 26 = 312132061 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 312132097 and 312132106.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13787 + ... + 28536.
It is an arithmetic number, because the mean of its divisors is an integer number (24759540).
Almost surely, 2312132125 is an apocalyptic number.
It is an amenable number.
312132125 is a deficient number, since it is larger than the sum of its proper divisors (84020515).
312132125 is an equidigital number, since it uses as much as digits as its factorization.
312132125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42397 (or 42387 counting only the distinct ones).
The product of its digits is 360, while the sum is 20.
The square root of 312132125 is about 17667.2613893608. The cubic root of 312132125 is about 678.3380152222.
Adding to 312132125 its reverse (521231213), we get a palindrome (833363338).
The spelling of 312132125 in words is "three hundred twelve million, one hundred thirty-two thousand, one hundred twenty-five".
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