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13028258 = 223614643
BaseRepresentation
bin110001101100…
…101110100010
3220111220102002
4301230232202
511313401013
61143124002
7215511155
oct61545642
926456362
1013028258
117399361
124443602
132912039
141a31c9c
151225358
hexc6cba2

13028258 has 16 divisors (see below), whose sum is σ = 20730816. Its totient is φ = 6127440.

The previous prime is 13028251. The next prime is 13028263. The reversal of 13028258 is 85282031.

13028258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13028258.

It is not an unprimeable number, because it can be changed into a prime (13028251) 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, 485 + ... + 5127.

It is an arithmetic number, because the mean of its divisors is an integer number (1295676).

Almost surely, 213028258 is an apocalyptic number.

13028258 is a deficient number, since it is larger than the sum of its proper divisors (7702558).

13028258 is a wasteful number, since it uses less digits than its factorization.

13028258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 13028258 is about 3609.4678278106. The cubic root of 13028258 is about 235.3037147483.

The spelling of 13028258 in words is "thirteen million, twenty-eight thousand, two hundred fifty-eight".

Divisors: 1 2 23 46 61 122 1403 2806 4643 9286 106789 213578 283223 566446 6514129 13028258