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264228 = 22397227
BaseRepresentation
bin1000000100000100100
3111102110020
41000200210
531423403
65355140
72150226
oct1004044
9442406
10264228
11170578
12108ab0
1393363
146c416
1553453
hex40824

264228 has 24 divisors (see below), whose sum is σ = 625632. Its totient is φ = 86784.

The previous prime is 264221. The next prime is 264263. The reversal of 264228 is 822462.

It is a d-powerful number, because it can be written as 28 + 62 + 210 + 44 + 218 + 83 .

It is a junction number, because it is equal to n+sod(n) for n = 264198 and 264207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264221) by changing a digit.

264228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051 + ... + 1277.

It is an arithmetic number, because the mean of its divisors is an integer number (26068).

2264228 is an apocalyptic number.

It is an amenable number.

264228 is an abundant number, since it is smaller than the sum of its proper divisors (361404).

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

264228 is a wasteful number, since it uses less digits than its factorization.

264228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 329 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 264228 is about 514.0311274621. The cubic root of 264228 is about 64.1691489079.

The spelling of 264228 in words is "two hundred sixty-four thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 97 194 227 291 388 454 582 681 908 1164 1362 2724 22019 44038 66057 88076 132114 264228