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12825806 = 27916129
BaseRepresentation
bin110000111011…
…010011001110
3220010121200212
4300323103032
511240411211
61134522422
7214006010
oct60732316
926117625
1012825806
117270244
124366412
132870b46
1419bc1b0
1511d538b
hexc3b4ce

12825806 has 8 divisors (see below), whose sum is σ = 21987120. Its totient is φ = 5496768.

The previous prime is 12825773. The next prime is 12825809. The reversal of 12825806 is 60852821.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12825809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458051 + ... + 458078.

It is an arithmetic number, because the mean of its divisors is an integer number (2748390).

Almost surely, 212825806 is an apocalyptic number.

12825806 is a deficient number, since it is larger than the sum of its proper divisors (9161314).

12825806 is an equidigital number, since it uses as much as digits as its factorization.

12825806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916138.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 12825806 is about 3581.3134462094. The cubic root of 12825806 is about 234.0785160339.

It can be divided in two parts, 12825 and 806, that added together give a palindrome (13631).

The spelling of 12825806 in words is "twelve million, eight hundred twenty-five thousand, eight hundred six".

Divisors: 1 2 7 14 916129 1832258 6412903 12825806