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12265 = 511223
BaseRepresentation
bin10111111101001
3121211021
42333221
5343030
6132441
750521
oct27751
917737
1012265
119240
127121
135776
144681
15397a
hex2fe9

12265 has 8 divisors (see below), whose sum is σ = 16128. Its totient is φ = 8880.

The previous prime is 12263. The next prime is 12269. The reversal of 12265 is 56221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12265 - 21 = 12263 is a prime.

It is a Duffinian number.

12265 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (12263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57 + ... + 166.

It is an arithmetic number, because the mean of its divisors is an integer number (2016).

212265 is an apocalyptic number.

It is an amenable number.

12265 is a deficient number, since it is larger than the sum of its proper divisors (3863).

12265 is a wasteful number, since it uses less digits than its factorization.

12265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239.

The product of its digits is 120, while the sum is 16.

The square root of 12265 is about 110.7474604675. The cubic root of 12265 is about 23.0615866761.

Adding to 12265 its reverse (56221), we get a palindrome (68486).

Subtracting 12265 from its reverse (56221), we obtain a triangular number (43956 = T296).

The spelling of 12265 in words is "twelve thousand, two hundred sixty-five".

Divisors: 1 5 11 55 223 1115 2453 12265