Base | Representation |
---|---|
bin | 110001101011… |
… | …101011010101 |
3 | 220111200111210 |
4 | 301223223111 |
5 | 11313231312 |
6 | 1143052033 |
7 | 215462502 |
oct | 61535325 |
9 | 26450453 |
10 | 13023957 |
11 | 7396101 |
12 | 4441019 |
13 | 29100ab |
14 | 1a304a9 |
15 | 1223e3c |
hex | c6bad5 |
13023957 has 8 divisors (see below), whose sum is σ = 18120384. Its totient is φ = 8305088.
The previous prime is 13023947. The next prime is 13023961. The reversal of 13023957 is 75932031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13023957 - 26 = 13023893 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13023947) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94308 + ... + 94445.
It is an arithmetic number, because the mean of its divisors is an integer number (2265048).
Almost surely, 213023957 is an apocalyptic number.
It is an amenable number.
13023957 is a deficient number, since it is larger than the sum of its proper divisors (5096427).
13023957 is a wasteful number, since it uses less digits than its factorization.
13023957 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 188779.
The product of its (nonzero) digits is 5670, while the sum is 30.
The square root of 13023957 is about 3608.8719844295. The cubic root of 13023957 is about 235.2778184065.
Adding to 13023957 its reverse (75932031), we get a palindrome (88955988).
The spelling of 13023957 in words is "thirteen million, twenty-three thousand, nine hundred fifty-seven".
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