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13055228 = 223788211
BaseRepresentation
bin110001110011…
…010011111100
3220120021101222
4301303103330
511320231403
61143452512
7215652614
oct61632374
926507358
1013055228
11740764a
124457138
1329213b4
141a3ba44
15122d338
hexc734fc

13055228 has 12 divisors (see below), whose sum is σ = 23464392. Its totient is φ = 6351120.

The previous prime is 13055227. The next prime is 13055233. The reversal of 13055228 is 82255031.

It is a junction number, because it is equal to n+sod(n) for n = 13055197 and 13055206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13055227) 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, 43958 + ... + 44253.

It is an arithmetic number, because the mean of its divisors is an integer number (1955366).

Almost surely, 213055228 is an apocalyptic number.

It is an amenable number.

13055228 is a deficient number, since it is larger than the sum of its proper divisors (10409164).

13055228 is a wasteful number, since it uses less digits than its factorization.

13055228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88252 (or 88250 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 13055228 is about 3613.2019041288. The cubic root of 13055228 is about 235.4659714658.

The spelling of 13055228 in words is "thirteen million, fifty-five thousand, two hundred twenty-eight".

Divisors: 1 2 4 37 74 148 88211 176422 352844 3263807 6527614 13055228