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104163823 = 254340961
BaseRepresentation
bin1100011010101…
…10100111101111
321021000001220101
412031112213233
5203131220243
614200331531
72403243421
oct615264757
9237001811
10104163823
1153885905
122aa73ba7
1318770aca
14db96811
15922854d
hex63569ef

104163823 has 4 divisors (see below), whose sum is σ = 104207328. Its totient is φ = 104120320.

The previous prime is 104163817. The next prime is 104163827. The reversal of 104163823 is 328361401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328361401 = 1917282179.

It is a cyclic number.

It is not a de Polignac number, because 104163823 - 213 = 104155631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104163791 and 104163800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104163827) 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, 17938 + ... + 23023.

It is an arithmetic number, because the mean of its divisors is an integer number (26051832).

Almost surely, 2104163823 is an apocalyptic number.

104163823 is a deficient number, since it is larger than the sum of its proper divisors (43505).

104163823 is an equidigital number, since it uses as much as digits as its factorization.

104163823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43504.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 104163823 is about 10206.0679499992. The cubic root of 104163823 is about 470.5137328131.

The spelling of 104163823 in words is "one hundred four million, one hundred sixty-three thousand, eight hundred twenty-three".

Divisors: 1 2543 40961 104163823