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12997134 = 232722063
BaseRepresentation
bin110001100101…
…001000001110
3220110022201100
4301211020032
511311402014
61142323530
7215321343
oct61451016
926408640
1012997134
117377a37
1244295a6
132900b17
141a247ca
15121b009
hexc6520e

12997134 has 12 divisors (see below), whose sum is σ = 28160496. Its totient is φ = 4332372.

The previous prime is 12997111. The next prime is 12997151. The reversal of 12997134 is 43179921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 361014 + ... + 361049.

It is an arithmetic number, because the mean of its divisors is an integer number (2346708).

Almost surely, 212997134 is an apocalyptic number.

12997134 is an abundant number, since it is smaller than the sum of its proper divisors (15163362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12997134 is a wasteful number, since it uses less digits than its factorization.

12997134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722071 (or 722068 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 12997134 is about 3605.1538108658. The cubic root of 12997134 is about 235.1161882067.

It can be divided in two parts, 12997 and 134, that added together give a palindrome (13131).

The spelling of 12997134 in words is "twelve million, nine hundred ninety-seven thousand, one hundred thirty-four".

Divisors: 1 2 3 6 9 18 722063 1444126 2166189 4332378 6498567 12997134