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13228294 = 219714903
BaseRepresentation
bin110010011101…
…100100000110
3220220001210211
4302131210012
511341301134
61151310034
7220303312
oct62354406
926801724
1013228294
117515682
12451b31a
1329820c1
141a84b42
151264764
hexc9d906

13228294 has 16 divisors (see below), whose sum is σ = 21185280. Its totient is φ = 6176520.

The previous prime is 13228283. The next prime is 13228297. The reversal of 13228294 is 49282231.

13228294 = T152 + T153 + ... + T435.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13228297) 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, 247 + ... + 5149.

It is an arithmetic number, because the mean of its divisors is an integer number (1324080).

Almost surely, 213228294 is an apocalyptic number.

13228294 is a deficient number, since it is larger than the sum of its proper divisors (7956986).

13228294 is a wasteful number, since it uses less digits than its factorization.

13228294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4995.

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

The square root of 13228294 is about 3637.0721741533. The cubic root of 13228294 is about 236.5018884303.

The spelling of 13228294 in words is "thirteen million, two hundred twenty-eight thousand, two hundred ninety-four".

Divisors: 1 2 19 38 71 142 1349 2698 4903 9806 93157 186314 348113 696226 6614147 13228294