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134679909 = 3713493333
BaseRepresentation
bin10000000011100…
…00110101100101
3100101102110002210
420001300311211
5233434224114
621210354033
73223521540
oct1001606545
9311373083
10134679909
116a029011
123912b919
1321b96970
1413c5b857
15bc55259
hex8070d65

134679909 has 16 divisors (see below), whose sum is σ = 221013632. Its totient is φ = 71039808.

The previous prime is 134679901. The next prime is 134679947. The reversal of 134679909 is 909976431.

It is not a de Polignac number, because 134679909 - 23 = 134679901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134679901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246394 + ... + 246939.

It is an arithmetic number, because the mean of its divisors is an integer number (13813352).

Almost surely, 2134679909 is an apocalyptic number.

It is an amenable number.

134679909 is a deficient number, since it is larger than the sum of its proper divisors (86333723).

134679909 is a wasteful number, since it uses less digits than its factorization.

134679909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493356.

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 134679909 is about 11605.1673404566. The cubic root of 134679909 is about 512.5870202423.

The spelling of 134679909 in words is "one hundred thirty-four million, six hundred seventy-nine thousand, nine hundred nine".

Divisors: 1 3 7 13 21 39 91 273 493333 1479999 3453331 6413329 10359993 19239987 44893303 134679909