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326228 = 22761191
BaseRepresentation
bin1001111101001010100
3121120111112
41033221110
540414403
610554152
72526050
oct1175124
9546445
10326228
11203111
12138958
13b5646
1486c60
15669d8
hex4fa54

326228 has 24 divisors (see below), whose sum is σ = 666624. Its totient is φ = 136800.

The previous prime is 326219. The next prime is 326251. The reversal of 326228 is 822623.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 326228.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1613 + ... + 1803.

It is an arithmetic number, because the mean of its divisors is an integer number (27776).

2326228 is an apocalyptic number.

It is an amenable number.

326228 is an abundant number, since it is smaller than the sum of its proper divisors (340396).

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

326228 is a wasteful number, since it uses less digits than its factorization.

326228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 261 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 326228 is about 571.1637243383. The cubic root of 326228 is about 68.8399285984.

The spelling of 326228 in words is "three hundred twenty-six thousand, two hundred twenty-eight".

Divisors: 1 2 4 7 14 28 61 122 191 244 382 427 764 854 1337 1708 2674 5348 11651 23302 46604 81557 163114 326228