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13105144 = 2313126011
BaseRepresentation
bin110001111111…
…011111111000
3220122210212201
4301333133320
511323331034
61144515544
7216251263
oct61773770
926583781
1013105144
1174410a8
12447bbb4
13293b030
141a51cda
15123d014
hexc7f7f8

13105144 has 16 divisors (see below), whose sum is σ = 26462520. Its totient is φ = 6048480.

The previous prime is 13105123. The next prime is 13105159. The reversal of 13105144 is 44150131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62902 + ... + 63109.

Almost surely, 213105144 is an apocalyptic number.

It is an amenable number.

13105144 is an abundant number, since it is smaller than the sum of its proper divisors (13357376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13105144 is a wasteful number, since it uses less digits than its factorization.

13105144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126030 (or 126026 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 13105144 is about 3620.1027609724. The cubic root of 13105144 is about 235.7656871942.

Adding to 13105144 its reverse (44150131), we get a palindrome (57255275).

The spelling of 13105144 in words is "thirteen million, one hundred five thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 26 52 104 126011 252022 504044 1008088 1638143 3276286 6552572 13105144