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104112689 = 645116139
BaseRepresentation
bin1100011010010…
…10001000110001
321020220110202112
412031022020301
5203123101224
614155255105
72402641352
oct615121061
9236813675
10104112689
115385044a
122aa4a495
1318753755
14db81d29
15921830e
hex634a231

104112689 has 4 divisors (see below), whose sum is σ = 104135280. Its totient is φ = 104090100.

The previous prime is 104112683. The next prime is 104112691. The reversal of 104112689 is 986211401.

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 104112689 - 212 = 104108593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104112683) 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, 1619 + ... + 14520.

It is an arithmetic number, because the mean of its divisors is an integer number (26033820).

Almost surely, 2104112689 is an apocalyptic number.

It is an amenable number.

104112689 is a deficient number, since it is larger than the sum of its proper divisors (22591).

104112689 is an equidigital number, since it uses as much as digits as its factorization.

104112689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22590.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 104112689 is about 10203.5625641244. The cubic root of 104112689 is about 470.4367285120.

The spelling of 104112689 in words is "one hundred four million, one hundred twelve thousand, six hundred eighty-nine".

Divisors: 1 6451 16139 104112689