Base | Representation |
---|---|
bin | 110001101100… |
… | …101110011011 |
3 | 220111220101211 |
4 | 301230232123 |
5 | 11313401001 |
6 | 1143123551 |
7 | 215511145 |
oct | 61545633 |
9 | 26456354 |
10 | 13028251 |
11 | 7399355 |
12 | 44435b7 |
13 | 2912032 |
14 | 1a31c95 |
15 | 1225351 |
hex | c6cb9b |
13028251 has 2 divisors, whose sum is σ = 13028252. Its totient is φ = 13028250.
The previous prime is 13028233. The next prime is 13028263. The reversal of 13028251 is 15282031.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 13028251 - 27 = 13028123 is a prime.
It is not a weakly prime, because it can be changed into another prime (13028291) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6514125 + 6514126.
It is an arithmetic number, because the mean of its divisors is an integer number (6514126).
Almost surely, 213028251 is an apocalyptic number.
13028251 is a deficient number, since it is larger than the sum of its proper divisors (1).
13028251 is an equidigital number, since it uses as much as digits as its factorization.
13028251 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 480, while the sum is 22.
The square root of 13028251 is about 3609.4668581385. The cubic root of 13028251 is about 235.3036726059.
The spelling of 13028251 in words is "thirteen million, twenty-eight thousand, two hundred fifty-one".
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