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12501275 = 521014951
BaseRepresentation
bin101111101100…
…000100011011
3212112010112012
4233230010123
511200020100
61123540135
7211154603
oct57540433
925463465
1012501275
117069436
12422a64b
132789207
141935c03
15116e135
hexbec11b

12501275 has 12 divisors (see below), whose sum is σ = 15658224. Its totient is φ = 9900000.

The previous prime is 12501257. The next prime is 12501283. The reversal of 12501275 is 57210521.

It is a happy number.

It is not a de Polignac number, because 12501275 - 28 = 12501019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12501275.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50 + ... + 5000.

It is an arithmetic number, because the mean of its divisors is an integer number (1304852).

Almost surely, 212501275 is an apocalyptic number.

12501275 is a deficient number, since it is larger than the sum of its proper divisors (3156949).

12501275 is a wasteful number, since it uses less digits than its factorization.

12501275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5062 (or 5057 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 12501275 is about 3535.7142135642. The cubic root of 12501275 is about 232.0873321134.

Adding to 12501275 its reverse (57210521), we get a palindrome (69711796).

The spelling of 12501275 in words is "twelve million, five hundred one thousand, two hundred seventy-five".

Divisors: 1 5 25 101 505 2525 4951 24755 123775 500051 2500255 12501275