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13204000123 = 16779065869
BaseRepresentation
bin11000100110000010…
…10000110101111011
31021002012122201000121
430103001100311323
5204020211000443
610022115314111
7645131102116
oct142301206573
937065581017
1013204000123
11566634a7a6
122685bab937
131325729932
148d38ad57d
155242eb4ed
hex313050d7b

13204000123 has 4 divisors (see below), whose sum is σ = 13283066160. Its totient is φ = 13124934088.

The previous prime is 13204000099. The next prime is 13204000127. The reversal of 13204000123 is 32100040231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13204000123 - 25 = 13204000091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13204000097 and 13204000106.

It is not an unprimeable number, because it can be changed into a prime (13204000127) 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, 39532768 + ... + 39533101.

It is an arithmetic number, because the mean of its divisors is an integer number (3320766540).

Almost surely, 213204000123 is an apocalyptic number.

13204000123 is a deficient number, since it is larger than the sum of its proper divisors (79066037).

13204000123 is an equidigital number, since it uses as much as digits as its factorization.

13204000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79066036.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13204000123 its reverse (32100040231), we get a palindrome (45304040354).

The spelling of 13204000123 in words is "thirteen billion, two hundred four million, one hundred twenty-three", and thus it is an aban number.

Divisors: 1 167 79065869 13204000123