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202228 = 22133889
BaseRepresentation
bin110001010111110100
3101021101221
4301113310
522432403
64200124
71501405
oct612764
9337357
10202228
11128a34
1299044
1371080
14539ac
153edbd
hex315f4

202228 has 12 divisors (see below), whose sum is σ = 381220. Its totient is φ = 93312.

The previous prime is 202219. The next prime is 202231. The reversal of 202228 is 822202.

It can be written as a sum of positive squares in 2 ways, for example, as 85264 + 116964 = 292^2 + 342^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1893 + ... + 1996.

2202228 is an apocalyptic number.

It is an amenable number.

202228 is a deficient number, since it is larger than the sum of its proper divisors (178992).

202228 is a wasteful number, since it uses less digits than its factorization.

202228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906 (or 3904 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 202228 is about 449.6976762226. The cubic root of 202228 is about 58.6967103922.

It can be divided in two parts, 2022 and 28, that multiplied together give a triangular number (56616 = T336).

The spelling of 202228 in words is "two hundred two thousand, two hundred twenty-eight".

Divisors: 1 2 4 13 26 52 3889 7778 15556 50557 101114 202228