Base | Representation |
---|---|
bin | 111011001110… |
… | …1000101011101 |
3 | 2011102121111201 |
4 | 1312131011131 |
5 | 30422132000 |
6 | 3025315501 |
7 | 524636656 |
oct | 166350535 |
9 | 64377451 |
10 | 31052125 |
11 | 16589a15 |
12 | a495b91 |
13 | 6582b50 |
14 | 41a452d |
15 | 2ad596a |
hex | 1d9d15d |
31052125 has 32 divisors (see below), whose sum is σ = 42378336. Its totient is φ = 22579200.
The previous prime is 31052123. The next prime is 31052167. The reversal of 31052125 is 52125013.
It can be written as a sum of positive squares in 16 ways, for example, as 18983449 + 12068676 = 4357^2 + 3474^2 .
It is not a de Polignac number, because 31052125 - 21 = 31052123 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31052123) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157527 + ... + 157723.
It is an arithmetic number, because the mean of its divisors is an integer number (1324323).
Almost surely, 231052125 is an apocalyptic number.
It is an amenable number.
31052125 is a deficient number, since it is larger than the sum of its proper divisors (11326211).
31052125 is a wasteful number, since it uses less digits than its factorization.
31052125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 322 (or 312 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 19.
The square root of 31052125 is about 5572.4433599634. The cubic root of 31052125 is about 314.3140359660.
Adding to 31052125 its reverse (52125013), we get a palindrome (83177138).
The spelling of 31052125 in words is "thirty-one million, fifty-two thousand, one hundred twenty-five".
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