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136127811 = 31092831471
BaseRepresentation
bin10000001110100…
…10010101000011
3100111011000020210
420013102111003
5234322042221
621301405203
73242032041
oct1007222503
9314130223
10136127811
116a927926
1239709803
1322282a01
1414117391
15be3e276
hex81d2543

136127811 has 16 divisors (see below), whose sum is σ = 183941120. Its totient is φ = 89540640.

The previous prime is 136127779. The next prime is 136127813. The reversal of 136127811 is 118721631.

It is not a de Polignac number, because 136127811 - 25 = 136127779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136127813) 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, 91806 + ... + 93276.

It is an arithmetic number, because the mean of its divisors is an integer number (11496320).

Almost surely, 2136127811 is an apocalyptic number.

136127811 is a deficient number, since it is larger than the sum of its proper divisors (47813309).

136127811 is a wasteful number, since it uses less digits than its factorization.

136127811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866.

The product of its digits is 2016, while the sum is 30.

The square root of 136127811 is about 11667.3823542387. The cubic root of 136127811 is about 514.4173647862.

The spelling of 136127811 in words is "one hundred thirty-six million, one hundred twenty-seven thousand, eight hundred eleven".

Divisors: 1 3 109 283 327 849 1471 4413 30847 92541 160339 416293 481017 1248879 45375937 136127811