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38228 = 2219503
BaseRepresentation
bin1001010101010100
31221102212
421111110
52210403
6452552
7216311
oct112524
957385
1038228
11267a3
121a158
1314528
14dd08
15b4d8
hex9554

38228 has 12 divisors (see below), whose sum is σ = 70560. Its totient is φ = 18072.

The previous prime is 38219. The next prime is 38231. The reversal of 38228 is 82283.

It is a super-2 number, since 2×382282 = 2922759968, which contains 22 as substring.

It is a nialpdrome in base 4 and base 16.

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 38228.

It is an unprimeable number.

38228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 176 + ... + 327.

It is an arithmetic number, because the mean of its divisors is an integer number (5880).

238228 is an apocalyptic number.

38228 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

38228 is a deficient number, since it is larger than the sum of its proper divisors (32332).

38228 is a wasteful number, since it uses less digits than its factorization.

38228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 524 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 38228 is about 195.5198199672. The cubic root of 38228 is about 33.6868595436.

The spelling of 38228 in words is "thirty-eight thousand, two hundred twenty-eight".

Divisors: 1 2 4 19 38 76 503 1006 2012 9557 19114 38228