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123000204 = 22310250017
BaseRepresentation
bin1110101010011…
…01010110001100
322120110001120010
413111031112030
5222442001304
620112153220
73022325115
oct725152614
9276401503
10123000204
1163480968
1235238810
131c6376b2
141249b20c
15abe9789
hex754d58c

123000204 has 12 divisors (see below), whose sum is σ = 287000504. Its totient is φ = 41000064.

The previous prime is 123000203. The next prime is 123000211. The reversal of 123000204 is 402000321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 10250017 = 123000204 / (1 + 2 + 3 + 0 + 0 + 0 + 2 + 0 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 123000204.

It is not an unprimeable number, because it can be changed into a prime (123000203) 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, 5124997 + ... + 5125020.

Almost surely, 2123000204 is an apocalyptic number.

It is an amenable number.

123000204 is an abundant number, since it is smaller than the sum of its proper divisors (164000300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123000204 is a wasteful number, since it uses less digits than its factorization.

123000204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10250024 (or 10250022 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 123000204 is about 11090.5457034359. The cubic root of 123000204 is about 497.3192582673.

Adding to 123000204 its reverse (402000321), we get a palindrome (525000525).

The spelling of 123000204 in words is "one hundred twenty-three million, two hundred four", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 10250017 20500034 30750051 41000068 61500102 123000204