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13115226 = 232185871
BaseRepresentation
bin110010000001…
…111101011010
3220200022201010
4302001331122
511324141401
61145034350
7216322545
oct62017532
926608633
1013115226
117448733
1244859b6
1329427b7
141a5585c
151240ed6
hexc81f5a

13115226 has 8 divisors (see below), whose sum is σ = 26230464. Its totient is φ = 4371740.

The previous prime is 13115197. The next prime is 13115227. The reversal of 13115226 is 62251131.

13115226 is digitally balanced in base 2 and base 4, because in such bases 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.

13115226 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13115227) 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, 1092930 + ... + 1092941.

It is an arithmetic number, because the mean of its divisors is an integer number (3278808).

Almost surely, 213115226 is an apocalyptic number.

13115226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13115226 is a wasteful number, since it uses less digits than its factorization.

13115226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185876.

The product of its digits is 360, while the sum is 21.

The square root of 13115226 is about 3621.4949951643. The cubic root of 13115226 is about 235.8261311533.

Adding to 13115226 its reverse (62251131), we get a palindrome (75366357).

The spelling of 13115226 in words is "thirteen million, one hundred fifteen thousand, two hundred twenty-six".

Divisors: 1 2 3 6 2185871 4371742 6557613 13115226