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12585133 = 111144103
BaseRepresentation
bin110000000000…
…100010101101
3212200101120001
4300000202231
511210211013
61125424301
7211654231
oct60004255
925611501
1012585133
117116440
12426b091
1327b8432
1419585c1
151188ddd
hexc008ad

12585133 has 4 divisors (see below), whose sum is σ = 13729248. Its totient is φ = 11441020.

The previous prime is 12585121. The next prime is 12585137. The reversal of 12585133 is 33158521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12585133 - 217 = 12454061 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12585137) 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, 572041 + ... + 572062.

It is an arithmetic number, because the mean of its divisors is an integer number (3432312).

Almost surely, 212585133 is an apocalyptic number.

It is an amenable number.

12585133 is a deficient number, since it is larger than the sum of its proper divisors (1144115).

12585133 is a wasteful number, since it uses less digits than its factorization.

12585133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144114.

The product of its digits is 3600, while the sum is 28.

The square root of 12585133 is about 3547.5531003778. The cubic root of 12585133 is about 232.6051199218.

It can be divided in two parts, 125 and 85133, that added together give a palindrome (85258).

The spelling of 12585133 in words is "twelve million, five hundred eighty-five thousand, one hundred thirty-three".

Divisors: 1 11 1144103 12585133