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12675945 = 351979563
BaseRepresentation
bin110000010110…
…101101101001
3212212000010110
4300112231221
511221112240
61131404533
7212513052
oct60265551
925760113
1012675945
117178697
1242b3749
13281a879
14197d729
1511a5c80
hexc16b69

12675945 has 32 divisors (see below), whose sum is σ = 21657600. Its totient is φ = 6312384.

The previous prime is 12675917. The next prime is 12675959. The reversal of 12675945 is 54957621.

12675945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12675945 - 25 = 12675913 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22234 + ... + 22796.

It is an arithmetic number, because the mean of its divisors is an integer number (676800).

Almost surely, 212675945 is an apocalyptic number.

12675945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12675945 is a deficient number, since it is larger than the sum of its proper divisors (8981655).

12675945 is a wasteful number, since it uses less digits than its factorization.

12675945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669.

The product of its digits is 75600, while the sum is 39.

The square root of 12675945 is about 3560.3293386989. The cubic root of 12675945 is about 233.1632581496.

The spelling of 12675945 in words is "twelve million, six hundred seventy-five thousand, nine hundred forty-five".

Divisors: 1 3 5 15 19 57 79 95 237 285 395 563 1185 1501 1689 2815 4503 7505 8445 10697 22515 32091 44477 53485 133431 160455 222385 667155 845063 2535189 4225315 12675945