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13247132 = 228339901
BaseRepresentation
bin110010100010…
…001010011100
3220221000122112
4302202022130
511342402012
61151533152
7220412243
oct62421234
926830575
1013247132
117528848
12452a1b8
13298a852
141a8b95a
15126a122
hexca229c

13247132 has 12 divisors (see below), whose sum is σ = 23462376. Its totient is φ = 6543600.

The previous prime is 13247119. The next prime is 13247159. The reversal of 13247132 is 23174231.

It is a junction number, because it is equal to n+sod(n) for n = 13247098 and 13247107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19619 + ... + 20282.

It is an arithmetic number, because the mean of its divisors is an integer number (1955198).

Almost surely, 213247132 is an apocalyptic number.

It is an amenable number.

13247132 is a deficient number, since it is larger than the sum of its proper divisors (10215244).

13247132 is a wasteful number, since it uses less digits than its factorization.

13247132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39988 (or 39986 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 13247132 is about 3639.6609732226. The cubic root of 13247132 is about 236.6141001637.

The spelling of 13247132 in words is "thirteen million, two hundred forty-seven thousand, one hundred thirty-two".

Divisors: 1 2 4 83 166 332 39901 79802 159604 3311783 6623566 13247132