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13238806 = 27945629
BaseRepresentation
bin110010100000…
…001000010110
3220220121020011
4302200020112
511342120211
61151430434
7220346050
oct62401026
926817204
1013238806
117522569
12452541a
132986b19
141a888d0
151267921
hexca0216

13238806 has 8 divisors (see below), whose sum is σ = 22695120. Its totient is φ = 5673768.

The previous prime is 13238779. The next prime is 13238807. The reversal of 13238806 is 60883231.

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 (13238807) 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, 472801 + ... + 472828.

It is an arithmetic number, because the mean of its divisors is an integer number (2836890).

Almost surely, 213238806 is an apocalyptic number.

13238806 is a deficient number, since it is larger than the sum of its proper divisors (9456314).

13238806 is an equidigital number, since it uses as much as digits as its factorization.

13238806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945638.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 13238806 is about 3638.5170055944. The cubic root of 13238806 is about 236.5645180636.

The spelling of 13238806 in words is "thirteen million, two hundred thirty-eight thousand, eight hundred six".

Divisors: 1 2 7 14 945629 1891258 6619403 13238806