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206028976 = 2431415381
BaseRepresentation
bin11000100011111…
…00000010110000
3112100200100121211
430101330002300
5410220411401
632235525504
75051134366
oct1421740260
9470610554
10206028976
11a633068a
1258bb9894
13338b854a
141d511636
151314a951
hexc47c0b0

206028976 has 20 divisors (see below), whose sum is σ = 412058944. Its totient is φ = 99691200.

The previous prime is 206028973. The next prime is 206029013. The reversal of 206028976 is 679820602.

206028976 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (206028971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207195 + ... + 208186.

Almost surely, 2206028976 is an apocalyptic number.

It is an amenable number.

206028976 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

206028976 is a wasteful number, since it uses less digits than its factorization.

206028976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415420 (or 415414 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 206028976 is about 14353.7094857044. The cubic root of 206028976 is about 590.6217480892.

The spelling of 206028976 in words is "two hundred six million, twenty-eight thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 16 31 62 124 248 496 415381 830762 1661524 3323048 6646096 12876811 25753622 51507244 103014488 206028976