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134636680 = 2353365917
BaseRepresentation
bin10000000011001…
…10010010001000
3100101100020210201
420001212102020
5233431333210
621205421544
73223251523
oct1001462210
9311306721
10134636680
1169aa9592
123910a8b4
1321b80099
1413c49bba
15bc4753a
hex8066488

134636680 has 16 divisors (see below), whose sum is σ = 302932620. Its totient is φ = 53854656.

The previous prime is 134636659. The next prime is 134636683. The reversal of 134636680 is 86636431.

It can be written as a sum of positive squares in 2 ways, for example, as 134606404 + 30276 = 11602^2 + 174^2 .

It is not an unprimeable number, because it can be changed into a prime (134636683) 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, 1682919 + ... + 1682998.

Almost surely, 2134636680 is an apocalyptic number.

134636680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134636680 is an abundant number, since it is smaller than the sum of its proper divisors (168295940).

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

134636680 is a wasteful number, since it uses less digits than its factorization.

134636680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365928 (or 3365924 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 134636680 is about 11603.3047016787. The cubic root of 134636680 is about 512.5321716865.

The spelling of 134636680 in words is "one hundred thirty-four million, six hundred thirty-six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 3365917 6731834 13463668 16829585 26927336 33659170 67318340 134636680