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13183228 = 2217193871
BaseRepresentation
bin110010010010…
…100011111100
3220210202222201
4302102203330
511333330403
61150321244
7220025032
oct62224374
926722881
1013183228
117494833
1244b9224
132967736
141a72552
15125621d
hexc928fc

13183228 has 12 divisors (see below), whose sum is σ = 24427872. Its totient is φ = 6203840.

The previous prime is 13183213. The next prime is 13183229. The reversal of 13183228 is 82238131.

13183228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13183196 and 13183205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13183229) 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, 96868 + ... + 97003.

It is an arithmetic number, because the mean of its divisors is an integer number (2035656).

Almost surely, 213183228 is an apocalyptic number.

It is an amenable number.

13183228 is a deficient number, since it is larger than the sum of its proper divisors (11244644).

13183228 is a wasteful number, since it uses less digits than its factorization.

13183228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193892 (or 193890 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 13183228 is about 3630.8715207234. The cubic root of 13183228 is about 236.2330122253.

The spelling of 13183228 in words is "thirteen million, one hundred eighty-three thousand, two hundred twenty-eight".

Divisors: 1 2 4 17 34 68 193871 387742 775484 3295807 6591614 13183228