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123104423 = 1324773823
BaseRepresentation
bin1110101011001…
…10110010100111
322120122100112002
413111212302213
5223003320143
620114315515
73023241011
oct725466247
9276570462
10123104423
11635421a2
1235288b9b
131c672c70
14124c71b1
15ac1a5b8
hex7566ca7

123104423 has 8 divisors (see below), whose sum is σ = 132662208. Its totient is φ = 113559264.

The previous prime is 123104413. The next prime is 123104431. The reversal of 123104423 is 324401321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123104423 - 24 = 123104407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123104395 and 123104404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123104413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30290 + ... + 34112.

It is an arithmetic number, because the mean of its divisors is an integer number (16582776).

Almost surely, 2123104423 is an apocalyptic number.

123104423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123104423 is a deficient number, since it is larger than the sum of its proper divisors (9557785).

123104423 is a wasteful number, since it uses less digits than its factorization.

123104423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6313.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 123104423 is about 11095.2432600642. The cubic root of 123104423 is about 497.4596794002.

Adding to 123104423 its reverse (324401321), we get a palindrome (447505744).

The spelling of 123104423 in words is "one hundred twenty-three million, one hundred four thousand, four hundred twenty-three".

Divisors: 1 13 2477 3823 32201 49699 9469571 123104423