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136942105 = 51031391913
BaseRepresentation
bin10000010100110…
…01001000011001
3100112200101020211
420022121020121
5240024121410
621331051121
73251663056
oct1012311031
9315611224
10136942105
11703336a3
1239a40aa1
13224a9541
141428a02d
15c05068a
hex8299219

136942105 has 16 divisors (see below), whose sum is σ = 167207040. Its totient is φ = 107653248.

The previous prime is 136942081. The next prime is 136942111. The reversal of 136942105 is 501249631.

It is a cyclic number.

It is not a de Polignac number, because 136942105 - 211 = 136940057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70629 + ... + 72541.

It is an arithmetic number, because the mean of its divisors is an integer number (10450440).

Almost surely, 2136942105 is an apocalyptic number.

It is an amenable number.

136942105 is a deficient number, since it is larger than the sum of its proper divisors (30264935).

136942105 is a wasteful number, since it uses less digits than its factorization.

136942105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 136942105 is about 11702.2264975517. The cubic root of 136942105 is about 515.4410461284.

The spelling of 136942105 in words is "one hundred thirty-six million, nine hundred forty-two thousand, one hundred five".

Divisors: 1 5 103 139 515 695 1913 9565 14317 71585 197039 265907 985195 1329535 27388421 136942105