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200228 = 2277151
BaseRepresentation
bin110000111000100100
3101011122212
4300320210
522401403
64142552
71462520
oct607044
9334585
10200228
11127486
1297a58
13701a2
1452d80
153e4d8
hex30e24

200228 has 12 divisors (see below), whose sum is σ = 400512. Its totient is φ = 85800.

The previous prime is 200227. The next prime is 200231. The reversal of 200228 is 822002.

200228 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (200227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3548 + ... + 3603.

It is an arithmetic number, because the mean of its divisors is an integer number (33376).

2200228 is an apocalyptic number.

200228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

200228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

200228 is a wasteful number, since it uses less digits than its factorization.

200228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7162 (or 7160 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 200228 is about 447.4684346409. The cubic root of 200228 is about 58.5025688598.

The spelling of 200228 in words is "two hundred thousand, two hundred twenty-eight".

Divisors: 1 2 4 7 14 28 7151 14302 28604 50057 100114 200228