Base | Representation |
---|---|
bin | 110001101100… |
… | …001010100101 |
3 | 220111210020212 |
4 | 301230022211 |
5 | 11313312312 |
6 | 1143105205 |
7 | 215501360 |
oct | 61541245 |
9 | 26453225 |
10 | 13025957 |
11 | 739765a |
12 | 4442205 |
13 | 2910c89 |
14 | 1a310d7 |
15 | 1224822 |
hex | c6c2a5 |
13025957 has 4 divisors (see below), whose sum is σ = 14886816. Its totient is φ = 11165100.
The previous prime is 13025953. The next prime is 13025977. The reversal of 13025957 is 75952031.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 13025957 - 22 = 13025953 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13025953) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930419 + ... + 930432.
It is an arithmetic number, because the mean of its divisors is an integer number (3721704).
Almost surely, 213025957 is an apocalyptic number.
It is an amenable number.
13025957 is a deficient number, since it is larger than the sum of its proper divisors (1860859).
13025957 is an equidigital number, since it uses as much as digits as its factorization.
13025957 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1860858.
The product of its (nonzero) digits is 9450, while the sum is 32.
The square root of 13025957 is about 3609.1490686864. The cubic root of 13025957 is about 235.2898611252.
Adding to 13025957 its reverse (75952031), we get a palindrome (88977988).
The spelling of 13025957 in words is "thirteen million, twenty-five thousand, nine hundred fifty-seven".
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