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206289084 = 223171011221
BaseRepresentation
bin11000100101110…
…11100010111100
3112101011120102110
430102323202330
5410302222314
632245254020
75053266621
oct1422734274
9471146373
10206289084
11a6499051
1259104310
1333979a61
141d57c348
151319ca59
hexc4bb8bc

206289084 has 24 divisors (see below), whose sum is σ = 509655888. Its totient is φ = 64718080.

The previous prime is 206289079. The next prime is 206289107. The reversal of 206289084 is 480982602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505407 + ... + 505814.

It is an arithmetic number, because the mean of its divisors is an integer number (21235662).

Almost surely, 2206289084 is an apocalyptic number.

It is an amenable number.

206289084 is an abundant number, since it is smaller than the sum of its proper divisors (303366804).

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

206289084 is a wasteful number, since it uses less digits than its factorization.

206289084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011245 (or 1011243 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 206289084 is about 14362.7672821083. The cubic root of 206289084 is about 590.8701934618.

The spelling of 206289084 in words is "two hundred six million, two hundred eighty-nine thousand, eighty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 1011221 2022442 3033663 4044884 6067326 12134652 17190757 34381514 51572271 68763028 103144542 206289084