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12745125 = 325311329
BaseRepresentation
bin110000100111…
…100110100101
3212222112000200
4300213212211
511230321000
61133101113
7213221541
oct60474645
925875020
1012745125
117215668
124327799
1328431c3
14199aa21
1511bb500
hexc279a5

12745125 has 24 divisors (see below), whose sum is σ = 22977240. Its totient is φ = 6796800.

The previous prime is 12745099. The next prime is 12745127. The reversal of 12745125 is 52154721.

12745125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1028196 + 11716929 = 1014^2 + 3423^2 .

It is not a de Polignac number, because 12745125 - 25 = 12745093 is a prime.

It is a super-2 number, since 2×127451252 = 324876422531250, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12745127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4540 + ... + 6789.

It is an arithmetic number, because the mean of its divisors is an integer number (957385).

Almost surely, 212745125 is an apocalyptic number.

12745125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12745125 is a deficient number, since it is larger than the sum of its proper divisors (10232115).

12745125 is a wasteful number, since it uses less digits than its factorization.

12745125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11350 (or 11337 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 12745125 is about 3570.0315124660. The cubic root of 12745125 is about 233.5866579783.

Adding to 12745125 its reverse (52154721), we get a palindrome (64899846).

The spelling of 12745125 in words is "twelve million, seven hundred forty-five thousand, one hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 125 225 375 1125 11329 33987 56645 101961 169935 283225 509805 849675 1416125 2549025 4248375 12745125