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13245806 = 274322003
BaseRepresentation
bin110010100001…
…110101101110
3220220221211102
4302201311232
511342331211
61151523102
7220405340
oct62416556
926827742
1013245806
117527852
124529492
13298a072
141a8b290
151269a3b
hexca1d6e

13245806 has 16 divisors (see below), whose sum is σ = 23236224. Its totient is φ = 5544504.

The previous prime is 13245731. The next prime is 13245809. The reversal of 13245806 is 60854231.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13245809) 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 7 ways as a sum of consecutive naturals, for example, 10400 + ... + 11603.

It is an arithmetic number, because the mean of its divisors is an integer number (1452264).

Almost surely, 213245806 is an apocalyptic number.

13245806 is a deficient number, since it is larger than the sum of its proper divisors (9990418).

13245806 is a wasteful number, since it uses less digits than its factorization.

13245806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22055.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 13245806 is about 3639.4788088406. The cubic root of 13245806 is about 236.6062051022.

The spelling of 13245806 in words is "thirteen million, two hundred forty-five thousand, eight hundred six".

Divisors: 1 2 7 14 43 86 301 602 22003 44006 154021 308042 946129 1892258 6622903 13245806