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104324809 = 393126539
BaseRepresentation
bin1100011011111…
…01111011001001
321021022020201211
412031331323021
5203201343214
614204013121
72404513651
oct615757311
9237266654
10104324809
1153985856
122ab311a1
13187c9174
14dbd9361
15925b0c4
hex637dec9

104324809 has 4 divisors (see below), whose sum is σ = 104355280. Its totient is φ = 104294340.

The previous prime is 104324783. The next prime is 104324813. The reversal of 104324809 is 908423401.

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, and also an emirpimes, since its reverse is a distinct semiprime: 908423401 = 1934706857.

It is a cyclic number.

It is not a de Polignac number, because 104324809 - 25 = 104324777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104324879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9339 + ... + 17200.

It is an arithmetic number, because the mean of its divisors is an integer number (26088820).

Almost surely, 2104324809 is an apocalyptic number.

It is an amenable number.

104324809 is a deficient number, since it is larger than the sum of its proper divisors (30471).

104324809 is an equidigital number, since it uses as much as digits as its factorization.

104324809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30470.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 104324809 is about 10213.9516838489. The cubic root of 104324809 is about 470.7560022595.

It can be divided in two parts, 1043 and 24809, that added together give a palindrome (25852).

The spelling of 104324809 in words is "one hundred four million, three hundred twenty-four thousand, eight hundred nine".

Divisors: 1 3931 26539 104324809