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13438134 = 232746563
BaseRepresentation
bin110011010000…
…110010110110
3221021201122200
4303100302312
511420010014
61200005330
7222136143
oct63206266
927251580
1013438134
1176492a6
124600846
132a26778
141adb3ca
1512a6a09
hexcd0cb6

13438134 has 12 divisors (see below), whose sum is σ = 29115996. Its totient is φ = 4479372.

The previous prime is 13438129. The next prime is 13438147. The reversal of 13438134 is 43183431.

13438134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13438098 and 13438107.

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, 373264 + ... + 373299.

It is an arithmetic number, because the mean of its divisors is an integer number (2426333).

Almost surely, 213438134 is an apocalyptic number.

13438134 is an abundant number, since it is smaller than the sum of its proper divisors (15677862).

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

13438134 is a wasteful number, since it uses less digits than its factorization.

13438134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746571 (or 746568 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 13438134 is about 3665.8060505160. The cubic root of 13438134 is about 237.7458742695.

The spelling of 13438134 in words is "thirteen million, four hundred thirty-eight thousand, one hundred thirty-four".

Divisors: 1 2 3 6 9 18 746563 1493126 2239689 4479378 6719067 13438134