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198229 = 1671187
BaseRepresentation
bin110000011001010101
3101001220211
4300121111
522320404
64125421
71453633
oct603125
9331824
10198229
11125a29
1296871
136c2c5
1452353
153db04
hex30655

198229 has 4 divisors (see below), whose sum is σ = 199584. Its totient is φ = 196876.

The previous prime is 198223. The next prime is 198241. The reversal of 198229 is 922891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 922891 = 3724943.

It is a cyclic number.

It is not a de Polignac number, because 198229 - 23 = 198221 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 198229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427 + ... + 760.

It is an arithmetic number, because the mean of its divisors is an integer number (49896).

2198229 is an apocalyptic number.

It is an amenable number.

198229 is a deficient number, since it is larger than the sum of its proper divisors (1355).

198229 is a wasteful number, since it uses less digits than its factorization.

198229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354.

The product of its digits is 2592, while the sum is 31.

The square root of 198229 is about 445.2291544812. The cubic root of 198229 is about 58.3072282286.

The spelling of 198229 in words is "one hundred ninety-eight thousand, two hundred twenty-nine".

Divisors: 1 167 1187 198229