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206082688 = 277230003
BaseRepresentation
bin11000100100010…
…01001010000000
3112100210002022011
430102021022000
5410224121223
632241022304
75051450110
oct1422111200
9470702264
10206082688
11a6367a79
1259024994
1333906b26
141d527040
151315b80d
hexc489280

206082688 has 32 divisors (see below), whose sum is σ = 469208160. Its totient is φ = 88320768.

The previous prime is 206082673. The next prime is 206082727. The reversal of 206082688 is 886280602.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 206082688.

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, 114106 + ... + 115897.

It is an arithmetic number, because the mean of its divisors is an integer number (14662755).

Almost surely, 2206082688 is an apocalyptic number.

206082688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

206082688 is an abundant number, since it is smaller than the sum of its proper divisors (263125472).

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

206082688 is an equidigital number, since it uses as much as digits as its factorization.

206082688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230024 (or 230012 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 206082688 is about 14355.5803783755. The cubic root of 206082688 is about 590.6730688946.

It can be divided in two parts, 2060 and 82688, that added together give a palindrome (84748).

The spelling of 206082688 in words is "two hundred six million, eighty-two thousand, six hundred eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 448 896 230003 460006 920012 1610021 1840024 3220042 3680048 6440084 7360096 12880168 14720192 25760336 29440384 51520672 103041344 206082688