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204831230 = 2531216563
BaseRepresentation
bin11000011010101…
…11100111111110
3112021102111121212
430031113213332
5404414044410
632154124422
75035015412
oct1415274776
9467374555
10204831230
11a569280a
1258720712
1333589316
141d2bcd42
1512eb0b05
hexc3579fe

204831230 has 16 divisors (see below), whose sum is σ = 368870544. Its totient is φ = 81893760.

The previous prime is 204831227. The next prime is 204831233. The reversal of 204831230 is 32138402.

It is an interprime number because it is at equal distance from previous prime (204831227) and next prime (204831233).

It is a junction number, because it is equal to n+sod(n) for n = 204831196 and 204831205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204831233) 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, 27929 + ... + 34491.

It is an arithmetic number, because the mean of its divisors is an integer number (23054409).

Almost surely, 2204831230 is an apocalyptic number.

204831230 is a deficient number, since it is larger than the sum of its proper divisors (164039314).

204831230 is a wasteful number, since it uses less digits than its factorization.

204831230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9691.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 204831230 is about 14311.9261457010. The cubic root of 204831230 is about 589.4749997971.

Adding to 204831230 its reverse (32138402), we get a palindrome (236969632).

The spelling of 204831230 in words is "two hundred four million, eight hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 3121 6242 6563 13126 15605 31210 32815 65630 20483123 40966246 102415615 204831230