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204234220 = 22510211711
BaseRepresentation
bin11000010110001…
…01110111101100
3112020022011200101
430023011313230
5404240443340
632133240444
75026651021
oct1413056754
9466264611
10204234220
11a5315213
1258493124
133340a668
141d1a5548
1512de3c9a
hexc2c5dec

204234220 has 12 divisors (see below), whose sum is σ = 428891904. Its totient is φ = 81693680.

The previous prime is 204234193. The next prime is 204234299. The reversal of 204234220 is 22432402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105836 + ... + 5105875.

It is an arithmetic number, because the mean of its divisors is an integer number (35740992).

Almost surely, 2204234220 is an apocalyptic number.

204234220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204234220 is an abundant number, since it is smaller than the sum of its proper divisors (224657684).

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

204234220 is a wasteful number, since it uses less digits than its factorization.

204234220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10211720 (or 10211718 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 204234220 is about 14291.0538449759. The cubic root of 204234220 is about 588.9017393396.

Adding to 204234220 its reverse (22432402), we get a palindrome (226666622).

The spelling of 204234220 in words is "two hundred four million, two hundred thirty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 10211711 20423422 40846844 51058555 102117110 204234220