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136038873 = 345346291
BaseRepresentation
bin10000001101111…
…00100111011001
3100110222111020210
420012330213121
5234311220443
621255441333
73241211535
oct1006744731
9313874223
10136038873
116a877023
1239686249
1322251399
14140d2bc5
15be22c33
hex81bc9d9

136038873 has 4 divisors (see below), whose sum is σ = 181385168. Its totient is φ = 90692580.

The previous prime is 136038871. The next prime is 136038887. The reversal of 136038873 is 378830631.

136038873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 136038873 - 21 = 136038871 is a prime.

It is a super-2 number, since 2×1360388732 = 37013149934220258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136038871) 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, 22673143 + ... + 22673148.

It is an arithmetic number, because the mean of its divisors is an integer number (45346292).

Almost surely, 2136038873 is an apocalyptic number.

It is an amenable number.

136038873 is a deficient number, since it is larger than the sum of its proper divisors (45346295).

136038873 is an equidigital number, since it uses as much as digits as its factorization.

136038873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45346294.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 136038873 is about 11663.5703367365. The cubic root of 136038873 is about 514.3053102432.

The spelling of 136038873 in words is "one hundred thirty-six million, thirty-eight thousand, eight hundred seventy-three".

Divisors: 1 3 45346291 136038873