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204280533 = 32195092347
BaseRepresentation
bin11000010110100…
…01001011010101
3112020101112012200
430023101023111
5404243434113
632134235113
75030233032
oct1413211325
9466345180
10204280533
11a5346a96
12584b5a99
1333425772
141d1b8389
1512e02873
hexc2d12d5

204280533 has 24 divisors (see below), whose sum is σ = 311344800. Its totient is φ = 128710944.

The previous prime is 204280511. The next prime is 204280541. The reversal of 204280533 is 335082402.

It is not a de Polignac number, because 204280533 - 224 = 187503317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204280497 and 204280506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204280133) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 85866 + ... + 88212.

It is an arithmetic number, because the mean of its divisors is an integer number (12972700).

Almost surely, 2204280533 is an apocalyptic number.

It is an amenable number.

204280533 is a deficient number, since it is larger than the sum of its proper divisors (107064267).

204280533 is a wasteful number, since it uses less digits than its factorization.

204280533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881 (or 2878 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 204280533 is about 14292.6741024904. The cubic root of 204280533 is about 588.9462499101.

The spelling of 204280533 in words is "two hundred four million, two hundred eighty thousand, five hundred thirty-three".

Divisors: 1 3 9 19 57 171 509 1527 2347 4581 7041 9671 21123 29013 44593 87039 133779 401337 1194623 3583869 10751607 22697837 68093511 204280533