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12638883 = 330713723
BaseRepresentation
bin110000001101…
…101010100011
3212210010021210
4300031222203
511213421013
61130521203
7212300025
oct60155243
925703253
1012638883
117152864
124296203
132806a3a
141970015
151199cc3
hexc0daa3

12638883 has 8 divisors (see below), whose sum is σ = 16907968. Its totient is φ = 8397864.

The previous prime is 12638849. The next prime is 12638893. The reversal of 12638883 is 38883621.

12638883 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 12638883 - 214 = 12622499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12638893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5941 + ... + 7782.

It is an arithmetic number, because the mean of its divisors is an integer number (2113496).

Almost surely, 212638883 is an apocalyptic number.

12638883 is a deficient number, since it is larger than the sum of its proper divisors (4269085).

12638883 is a wasteful number, since it uses less digits than its factorization.

12638883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14033.

The product of its digits is 55296, while the sum is 39.

The square root of 12638883 is about 3555.1206730574. The cubic root of 12638883 is about 232.9357949664.

The spelling of 12638883 in words is "twelve million, six hundred thirty-eight thousand, eight hundred eighty-three".

Divisors: 1 3 307 921 13723 41169 4212961 12638883