Search a number
-
+
13086149 = 23568963
BaseRepresentation
bin110001111010…
…110111000101
3220121211211012
4301322313011
511322224044
61144252005
7216142016
oct61726705
926554735
1013086149
1174288aa
124471005
1329324ab
141a4900d
15123759e
hexc7adc5

13086149 has 4 divisors (see below), whose sum is σ = 13655136. Its totient is φ = 12517164.

The previous prime is 13086137. The next prime is 13086169. The reversal of 13086149 is 94168031.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94168031 = 671405493.

It is a cyclic number.

It is not a de Polignac number, because 13086149 - 24 = 13086133 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 (13086109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284459 + ... + 284504.

It is an arithmetic number, because the mean of its divisors is an integer number (3413784).

Almost surely, 213086149 is an apocalyptic number.

It is an amenable number.

13086149 is a deficient number, since it is larger than the sum of its proper divisors (568987).

13086149 is an equidigital number, since it uses as much as digits as its factorization.

13086149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568986.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 13086149 is about 3617.4782653113. The cubic root of 13086149 is about 235.6517234288.

The spelling of 13086149 in words is "thirteen million, eighty-six thousand, one hundred forty-nine".

Divisors: 1 23 568963 13086149