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12427 = 17243
BaseRepresentation
bin11000010001011
3122001021
43002023
5344202
6133311
751142
oct30213
918037
1012427
119378
127237
13586c
144759
153a37
hex308b

12427 has 6 divisors (see below), whose sum is σ = 13508. Its totient is φ = 11424.

The previous prime is 12421. The next prime is 12433. The reversal of 12427 is 72421.

12427 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12421) and next prime (12433).

It is a de Polignac number, because none of the positive numbers 2k-12427 is a prime.

It is a Duffinian number.

12427 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 12427.

It is not an unprimeable number, because it can be changed into a prime (12421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 268 + ... + 310.

212427 is an apocalyptic number.

12427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12427 is a deficient number, since it is larger than the sum of its proper divisors (1081).

12427 is an equidigital number, since it uses as much as digits as its factorization.

12427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 60 counting only the distinct ones).

The product of its digits is 112, while the sum is 16.

The square root of 12427 is about 111.4764549131. The cubic root of 12427 is about 23.1626778035.

Adding to 12427 its reverse (72421), we get a palindrome (84848).

It can be divided in two parts, 124 and 27, that added together give a palindrome (151).

The spelling of 12427 in words is "twelve thousand, four hundred twenty-seven", and thus it is an iban number.

Divisors: 1 17 43 289 731 12427