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13102149 = 34367383
BaseRepresentation
bin110001111110…
…110001000101
3220122122202210
4301332301011
511323232044
61144454033
7216236454
oct61766105
926578683
1013102149
117439925
12447a319
132939868
141a50b9b
15123c1b9
hexc7ec45

13102149 has 4 divisors (see below), whose sum is σ = 17469536. Its totient is φ = 8734764.

The previous prime is 13102139. The next prime is 13102151. The reversal of 13102149 is 94120131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13102149 - 27 = 13102021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13102139) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2183689 + ... + 2183694.

It is an arithmetic number, because the mean of its divisors is an integer number (4367384).

Almost surely, 213102149 is an apocalyptic number.

It is an amenable number.

13102149 is a deficient number, since it is larger than the sum of its proper divisors (4367387).

13102149 is an equidigital number, since it uses as much as digits as its factorization.

13102149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367386.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 13102149 is about 3619.6890750450. The cubic root of 13102149 is about 235.7477254933.

The spelling of 13102149 in words is "thirteen million, one hundred two thousand, one hundred forty-nine".

Divisors: 1 3 4367383 13102149