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204068220 = 223519117807
BaseRepresentation
bin11000010100111…
…01010101111100
3112012222201222020
430022131111330
5404220140340
632125520140
75025360036
oct1412352574
9465881866
10204068220
11a5211524
1258413050
133337cc35
141d160c56
1512dae9d0
hexc29d57c

204068220 has 48 divisors (see below), whose sum is σ = 574414848. Its totient is φ = 54130240.

The previous prime is 204068201. The next prime is 204068231. The reversal of 204068220 is 22860402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2557 + ... + 20363.

It is an arithmetic number, because the mean of its divisors is an integer number (11966976).

Almost surely, 2204068220 is an apocalyptic number.

204068220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204068220 is an abundant number, since it is smaller than the sum of its proper divisors (370346628).

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

204068220 is a wasteful number, since it uses less digits than its factorization.

204068220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18010 (or 18008 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 204068220 is about 14285.2448351437. The cubic root of 204068220 is about 588.7421444942.

The spelling of 204068220 in words is "two hundred four million, sixty-eight thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 191 382 573 764 955 1146 1910 2292 2865 3820 5730 11460 17807 35614 53421 71228 89035 106842 178070 213684 267105 356140 534210 1068420 3401137 6802274 10203411 13604548 17005685 20406822 34011370 40813644 51017055 68022740 102034110 204068220