Base | Representation |
---|---|
bin | 110010100011… |
… | …101101010010 |
3 | 220221100022211 |
4 | 302203231102 |
5 | 11343102313 |
6 | 1152022334 |
7 | 220436551 |
oct | 62435522 |
9 | 26840284 |
10 | 13253458 |
11 | 7532579 |
12 | 45319aa |
13 | 29906aa |
14 | 1a8dd98 |
15 | 126be3d |
hex | ca3b52 |
13253458 has 4 divisors (see below), whose sum is σ = 19880190. Its totient is φ = 6626728.
The previous prime is 13253447. The next prime is 13253459. The reversal of 13253458 is 85435231.
13253458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85435231 = 7 ⋅12205033.
It can be written as a sum of positive squares in only one way, i.e., 7038409 + 6215049 = 2653^2 + 2493^2 .
It is not an unprimeable number, because it can be changed into a prime (13253459) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3313363 + ... + 3313366.
Almost surely, 213253458 is an apocalyptic number.
13253458 is a deficient number, since it is larger than the sum of its proper divisors (6626732).
13253458 is an equidigital number, since it uses as much as digits as its factorization.
13253458 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6626731.
The product of its digits is 14400, while the sum is 31.
The square root of 13253458 is about 3640.5299064834. The cubic root of 13253458 is about 236.6517581916.
Adding to 13253458 its reverse (85435231), we get a palindrome (98688689).
The spelling of 13253458 in words is "thirteen million, two hundred fifty-three thousand, four hundred fifty-eight".
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