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12275 = 52491
BaseRepresentation
bin10111111110011
3121211122
42333303
5343100
6132455
750534
oct27763
917748
1012275
11924a
12712b
135783
14468b
153985
hex2ff3

12275 has 6 divisors (see below), whose sum is σ = 15252. Its totient is φ = 9800.

The previous prime is 12269. The next prime is 12277. The reversal of 12275 is 57221.

Adding to 12275 its reverse (57221), we get a palindrome (69496).

12275 = T18 + T19 + ... + T42.

It is not a de Polignac number, because 12275 - 26 = 12211 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (12277) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 221 + ... + 270.

It is an arithmetic number, because the mean of its divisors is an integer number (2542).

212275 is an apocalyptic number.

12275 is a deficient number, since it is larger than the sum of its proper divisors (2977).

12275 is an equidigital number, since it uses as much as digits as its factorization.

12275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 496 counting only the distinct ones).

The product of its digits is 140, while the sum is 17.

The square root of 12275 is about 110.7925990308. The cubic root of 12275 is about 23.0678525606.

The spelling of 12275 in words is "twelve thousand, two hundred seventy-five".

Divisors: 1 5 25 491 2455 12275