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13025090 = 2513100193
BaseRepresentation
bin110001101011…
…111101000010
3220111202001202
4301223331002
511313300330
61143101202
7215466011
oct61537502
926452052
1013025090
117396a41
124441802
132910770
141a30a78
151224445
hexc6bf42

13025090 has 16 divisors (see below), whose sum is σ = 25248888. Its totient is φ = 4809216.

The previous prime is 13025083. The next prime is 13025119. The reversal of 13025090 is 9052031.

It can be written as a sum of positive squares in 4 ways, for example, as 10042561 + 2982529 = 3169^2 + 1727^2 .

It is a Curzon number.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49967 + ... + 50226.

Almost surely, 213025090 is an apocalyptic number.

13025090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13025090 is a deficient number, since it is larger than the sum of its proper divisors (12223798).

13025090 is a wasteful number, since it uses less digits than its factorization.

13025090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100213.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 13025090 is about 3609.0289552731. The cubic root of 13025090 is about 235.2846407580.

The spelling of 13025090 in words is "thirteen million, twenty-five thousand, ninety".

Divisors: 1 2 5 10 13 26 65 130 100193 200386 500965 1001930 1302509 2605018 6512545 13025090