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12755 = 52551
BaseRepresentation
bin11000111010011
3122111102
43013103
5402010
6135015
752121
oct30723
918442
1012755
119646
12746b
135a62
144911
153ba5
hex31d3

12755 has 4 divisors (see below), whose sum is σ = 15312. Its totient is φ = 10200.

The previous prime is 12743. The next prime is 12757. The reversal of 12755 is 55721.

12755 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12755 - 24 = 12739 is a prime.

It is a super-3 number, since 3×127553 = 6225333806625, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271 + ... + 1280.

It is an arithmetic number, because the mean of its divisors is an integer number (3828).

212755 is an apocalyptic number.

12755 is a deficient number, since it is larger than the sum of its proper divisors (2557).

12755 is an equidigital number, since it uses as much as digits as its factorization.

12755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556.

The product of its digits is 350, while the sum is 20.

The square root of 12755 is about 112.9380361083. The cubic root of 12755 is about 23.3646970523.

It can be divided in two parts, 12 and 755, that added together give a palindrome (767).

The spelling of 12755 in words is "twelve thousand, seven hundred fifty-five".

Divisors: 1 5 2551 12755