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204324231 = 368399719
BaseRepresentation
bin11000010110110…
…11110110000111
3112020110202011010
430023123312013
5404301333411
632135213303
75030504316
oct1413336607
9466422133
10204324231
11a5376901
1258517233
133343c617
141d1ca27d
1512e107a6
hexc2dbd87

204324231 has 8 divisors (see below), whose sum is σ = 272833920. Its totient is φ = 136015352.

The previous prime is 204324229. The next prime is 204324251. The reversal of 204324231 is 132423402.

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

It is not a de Polignac number, because 204324231 - 21 = 204324229 is a prime.

It is a super-2 number, since 2×2043242312 = 83496782747482722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204324198 and 204324207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204324221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47811 + ... + 51908.

It is an arithmetic number, because the mean of its divisors is an integer number (34104240).

Almost surely, 2204324231 is an apocalyptic number.

204324231 is a deficient number, since it is larger than the sum of its proper divisors (68509689).

204324231 is an equidigital number, since it uses as much as digits as its factorization.

204324231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100405.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 204324231 is about 14294.2027059924. The cubic root of 204324231 is about 588.9882410844.

Adding to 204324231 its reverse (132423402), we get a palindrome (336747633).

The spelling of 204324231 in words is "two hundred four million, three hundred twenty-four thousand, two hundred thirty-one".

Divisors: 1 3 683 2049 99719 299157 68108077 204324231