Search a number
12332131 = 71761733
BaseRepresentation
bin101111000010…
…110001100011
3212012112111121
4233002301203
511124112011
61120153111
7206551510
oct57026143
925175447
1012332131
116a63349
124168797
13272a226
1418d0307
151138e71
hexbc2c63

12332131 has 4 divisors (see below), whose sum is σ = 14093872. Its totient is φ = 10570392.

The previous prime is 12332129. The next prime is 12332143. The reversal of 12332131 is 13123321.

12332131 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13123321 = 41320081.

It is not a de Polignac number, because 12332131 - 21 = 12332129 is a prime.

It is a super-2 number, since 2×123321312 = 304162910002322, which contains 22 as substring.

It is a Duffinian number.

12332131 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (12332231) 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, 880860 + ... + 880873.

It is an arithmetic number, because the mean of its divisors is an integer number (3523468).

Almost surely, 212332131 is an apocalyptic number.

12332131 is a deficient number, since it is larger than the sum of its proper divisors (1761741).

12332131 is an equidigital number, since it uses as much as digits as its factorization.

12332131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761740.

The product of its digits is 108, while the sum is 16.

The square root of 12332131 is about 3511.7133994676. The cubic root of 12332131 is about 231.0358508352.

Adding to 12332131 its reverse (13123321), we get a palindrome (25455452).

It can be divided in two parts, 1233 and 2131, that added together give a square (3364 = 582).

The spelling of 12332131 in words is "twelve million, three hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 7 1761733 12332131