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204244430 = 25133159859
BaseRepresentation
bin11000010110010…
…00010111001110
3112020022200200112
430023020113032
5404241310210
632133400022
75030022545
oct1413102716
9466280615
10204244430
11a5321955
1258499012
13334121c0
141d1a915c
1512de6d05
hexc2c85ce

204244430 has 64 divisors (see below), whose sum is σ = 416102400. Its totient is φ = 71660160.

The previous prime is 204244429. The next prime is 204244451. The reversal of 204244430 is 34442402.

It is a junction number, because it is equal to n+sod(n) for n = 204244396 and 204244405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237341 + ... + 238199.

It is an arithmetic number, because the mean of its divisors is an integer number (6501600).

Almost surely, 2204244430 is an apocalyptic number.

204244430 is an abundant number, since it is smaller than the sum of its proper divisors (211857970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204244430 is a wasteful number, since it uses less digits than its factorization.

204244430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 204244430 is about 14291.4110569950. The cubic root of 204244430 is about 588.9115525605.

Adding to 204244430 its reverse (34442402), we get a palindrome (238686832).

The spelling of 204244430 in words is "two hundred four million, two hundred forty-four thousand, four hundred thirty".

Divisors: 1 2 5 10 13 26 31 59 62 65 118 130 155 295 310 403 590 767 806 859 1534 1718 1829 2015 3658 3835 4030 4295 7670 8590 9145 11167 18290 22334 23777 26629 47554 50681 53258 55835 101362 111670 118885 133145 237770 253405 266290 346177 506810 658853 692354 1317706 1571111 1730885 3142222 3294265 3461770 6588530 7855555 15711110 20424443 40848886 102122215 204244430