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205068 = 22323743
BaseRepresentation
bin110010000100001100
3101102022010
4302010030
523030233
64221220
71512603
oct620414
9342263
10205068
11130086
129a810
1372456
1454a3a
1540b63
hex3210c

205068 has 24 divisors (see below), whose sum is σ = 499968. Its totient is φ = 65296.

The previous prime is 205063. The next prime is 205069. The reversal of 205068 is 860502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205063) by changing a digit.

205068 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96 + ... + 647.

It is an arithmetic number, because the mean of its divisors is an integer number (20832).

2205068 is an apocalyptic number.

It is an amenable number.

205068 is an abundant number, since it is smaller than the sum of its proper divisors (294900).

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

205068 is a wasteful number, since it uses less digits than its factorization.

205068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 205068 is about 452.8443441184. The cubic root of 205068 is about 58.9702042409.

The spelling of 205068 in words is "two hundred five thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 743 1486 2229 2972 4458 8916 17089 34178 51267 68356 102534 205068