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12875145 = 357331171
BaseRepresentation
bin110001000111…
…010110001001
3220020010101020
4301013112021
511244001040
61135543053
7214302603
oct61072611
926203336
1012875145
1172a4318
12438aa89
13288a43a
1419d2173
1511e4cd0
hexc47589

12875145 has 16 divisors (see below), whose sum is σ = 20645952. Its totient is φ = 6851520.

The previous prime is 12875129. The next prime is 12875167. The reversal of 12875145 is 54157821.

It is not a de Polignac number, because 12875145 - 24 = 12875129 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10410 + ... + 11580.

It is an arithmetic number, because the mean of its divisors is an integer number (1290372).

Almost surely, 212875145 is an apocalyptic number.

12875145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12875145 is a deficient number, since it is larger than the sum of its proper divisors (7770807).

12875145 is a wasteful number, since it uses less digits than its factorization.

12875145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912.

The product of its digits is 11200, while the sum is 33.

The square root of 12875145 is about 3588.1952288024. The cubic root of 12875145 is about 234.3782872428.

The spelling of 12875145 in words is "twelve million, eight hundred seventy-five thousand, one hundred forty-five".

Divisors: 1 3 5 15 733 1171 2199 3513 3665 5855 10995 17565 858343 2575029 4291715 12875145