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204310 = 2520431
BaseRepresentation
bin110001111000010110
3101101021001
4301320112
523014220
64213514
71510441
oct617026
9341231
10204310
1112a557
129a29a
1371cc2
1454658
154080a
hex31e16

204310 has 8 divisors (see below), whose sum is σ = 367776. Its totient is φ = 81720.

The previous prime is 204301. The next prime is 204311. The reversal of 204310 is 13402.

204310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×2043102 = 83485152200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 20431 = 204310 / (2 + 0 + 4 + 3 + 1 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204311) 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, 10206 + ... + 10225.

It is an arithmetic number, because the mean of its divisors is an integer number (45972).

2204310 is an apocalyptic number.

204310 is a deficient number, since it is larger than the sum of its proper divisors (163466).

204310 is a wasteful number, since it uses less digits than its factorization.

204310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20438.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 204310 is about 452.0066371194. The cubic root of 204310 is about 58.8974566599.

Adding to 204310 its reverse (13402), we get a palindrome (217712).

The spelling of 204310 in words is "two hundred four thousand, three hundred ten", and thus it is an iban number.

Divisors: 1 2 5 10 20431 40862 102155 204310