Search a number
-
+
204430 = 2520443
BaseRepresentation
bin110001111010001110
3101101102111
4301322032
523020210
64214234
71511002
oct617216
9341374
10204430
1112a656
129a37a
1372085
1454702
154088a
hex31e8e

204430 has 8 divisors (see below), whose sum is σ = 367992. Its totient is φ = 81768.

The previous prime is 204427. The next prime is 204431. The reversal of 204430 is 34402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 204430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204431) 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, 10212 + ... + 10231.

It is an arithmetic number, because the mean of its divisors is an integer number (45999).

2204430 is an apocalyptic number.

204430 is a deficient number, since it is larger than the sum of its proper divisors (163562).

204430 is a wasteful number, since it uses less digits than its factorization.

204430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20450.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 204430 is about 452.1393590476. The cubic root of 204430 is about 58.9089854014.

Adding to 204430 its reverse (34402), we get a palindrome (238832).

The spelling of 204430 in words is "two hundred four thousand, four hundred thirty".

Divisors: 1 2 5 10 20443 40886 102215 204430