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136893612 = 22311407801
BaseRepresentation
bin10000010100011…
…01010010101100
3100112120220201210
420022031102230
5240021043422
621330034420
73251401512
oct1012152254
9315526653
10136893612
1170300219
1239a18a10
132249044b
14142764b2
15c04110c
hex828d4ac

136893612 has 12 divisors (see below), whose sum is σ = 319418456. Its totient is φ = 45631200.

The previous prime is 136893607. The next prime is 136893619. The reversal of 136893612 is 216398631.

136893612 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1368936122 = 37479722012813088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136893619) 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 3 ways as a sum of consecutive naturals, for example, 5703889 + ... + 5703912.

Almost surely, 2136893612 is an apocalyptic number.

136893612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136893612 is an abundant number, since it is smaller than the sum of its proper divisors (182524844).

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

136893612 is a wasteful number, since it uses less digits than its factorization.

136893612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11407808 (or 11407806 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 136893612 is about 11700.1543579561. The cubic root of 136893612 is about 515.3801974614.

The spelling of 136893612 in words is "one hundred thirty-six million, eight hundred ninety-three thousand, six hundred twelve".

Divisors: 1 2 3 4 6 12 11407801 22815602 34223403 45631204 68446806 136893612