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13808226 = 234156131
BaseRepresentation
bin110100101011…
…001001100010
3221222112022210
4310223021202
512013330401
61211542550
7225240135
oct64531142
927875283
1013808226
117881363
12475aa56
132b26063
141b9621c
15132b4d6
hexd2b262

13808226 has 16 divisors (see below), whose sum is σ = 28290528. Its totient is φ = 4490400.

The previous prime is 13808209. The next prime is 13808251. The reversal of 13808226 is 62280831.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13808193 and 13808202.

It is an unprimeable number.

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, 27820 + ... + 28311.

It is an arithmetic number, because the mean of its divisors is an integer number (1768158).

Almost surely, 213808226 is an apocalyptic number.

13808226 is an abundant number, since it is smaller than the sum of its proper divisors (14482302).

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

13808226 is a wasteful number, since it uses less digits than its factorization.

13808226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56177.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 13808226 is about 3715.9421416378. The cubic root of 13808226 is about 239.9086805353.

The spelling of 13808226 in words is "thirteen million, eight hundred eight thousand, two hundred twenty-six".

Divisors: 1 2 3 6 41 82 123 246 56131 112262 168393 336786 2301371 4602742 6904113 13808226