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12404135 = 517145931
BaseRepresentation
bin101111010100…
…010110100111
3212100012021102
4233110112213
511133413020
61121510315
7210301442
oct57242647
925305242
1012404135
117002457
1241a239b
132753c33
14190c659
151150475
hexbd45a7

12404135 has 8 divisors (see below), whose sum is σ = 15760656. Its totient is φ = 9339520.

The previous prime is 12404089. The next prime is 12404143. The reversal of 12404135 is 53140421.

12404135 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12404135 - 28 = 12403879 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, 72881 + ... + 73050.

It is an arithmetic number, because the mean of its divisors is an integer number (1970082).

Almost surely, 212404135 is an apocalyptic number.

12404135 is a deficient number, since it is larger than the sum of its proper divisors (3356521).

12404135 is a wasteful number, since it uses less digits than its factorization.

12404135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145953.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 12404135 is about 3521.9504539388. The cubic root of 12404135 is about 231.4846306195.

Adding to 12404135 its reverse (53140421), we get a palindrome (65544556).

The spelling of 12404135 in words is "twelve million, four hundred four thousand, one hundred thirty-five".

Divisors: 1 5 17 85 145931 729655 2480827 12404135