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29136089 = 67434867
BaseRepresentation
bin110111100100…
…1010011011001
32000211021012102
41233021103121
524424323324
62520253145
7502436603
oct157112331
960737172
1029136089
11154a0414
1299111b5
1360619b8
143c26173
152857dae
hex1bc94d9

29136089 has 4 divisors (see below), whose sum is σ = 29571024. Its totient is φ = 28701156.

The previous prime is 29136083. The next prime is 29136091. The reversal of 29136089 is 98063192.

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 a cyclic number.

It is not a de Polignac number, because 29136089 - 24 = 29136073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29136083) 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, 217367 + ... + 217500.

It is an arithmetic number, because the mean of its divisors is an integer number (7392756).

Almost surely, 229136089 is an apocalyptic number.

It is an amenable number.

29136089 is a deficient number, since it is larger than the sum of its proper divisors (434935).

29136089 is an equidigital number, since it uses as much as digits as its factorization.

29136089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434934.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 29136089 is about 5397.7855644699. The cubic root of 29136089 is about 307.7115172831.

The spelling of 29136089 in words is "twenty-nine million, one hundred thirty-six thousand, eighty-nine".

Divisors: 1 67 434867 29136089