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12404125 = 5399233
BaseRepresentation
bin101111010100…
…010110011101
3212100012021001
4233110112131
511133413000
61121510301
7210301426
oct57242635
925305231
1012404125
117002448
1241a2391
132753c26
14190c64d
15115046a
hexbd459d

12404125 has 8 divisors (see below), whose sum is σ = 15480504. Its totient is φ = 9923200.

The previous prime is 12404089. The next prime is 12404143. The reversal of 12404125 is 52140421.

It can be written as a sum of positive squares in 4 ways, for example, as 3481956 + 8922169 = 1866^2 + 2987^2 .

It is a de Polignac number, because none of the positive numbers 2k-12404125 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49492 + ... + 49741.

It is an arithmetic number, because the mean of its divisors is an integer number (1935063).

Almost surely, 212404125 is an apocalyptic number.

It is an amenable number.

12404125 is a deficient number, since it is larger than the sum of its proper divisors (3076379).

12404125 is an frugal number, since it uses more digits than its factorization.

12404125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99248 (or 99238 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 12404125 is about 3521.9490342707. The cubic root of 12404125 is about 231.4845684132.

Adding to 12404125 its reverse (52140421), we get a palindrome (64544546).

The spelling of 12404125 in words is "twelve million, four hundred four thousand, one hundred twenty-five".

Divisors: 1 5 25 125 99233 496165 2480825 12404125