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205888885 = 5139296243
BaseRepresentation
bin11000100010110…
…01110101110101
3112100102020110021
430101121311311
5410201421020
632232525141
75050012066
oct1421316565
9470366407
10205888885
11a6245404
1258b507b1
1333869857
141d4b656d
151311e1aa
hexc459d75

205888885 has 8 divisors (see below), whose sum is σ = 248844960. Its totient is φ = 163525584.

The previous prime is 205888877. The next prime is 205888889. The reversal of 205888885 is 588888502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205888885 - 23 = 205888877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205888889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147427 + ... + 148816.

It is an arithmetic number, because the mean of its divisors is an integer number (31105620).

Almost surely, 2205888885 is an apocalyptic number.

It is an amenable number.

205888885 is a deficient number, since it is larger than the sum of its proper divisors (42956075).

205888885 is a wasteful number, since it uses less digits than its factorization.

205888885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296387.

The product of its (nonzero) digits is 1638400, while the sum is 52.

The square root of 205888885 is about 14348.8286978415. The cubic root of 205888885 is about 590.4878517907.

The spelling of 205888885 in words is "two hundred five million, eight hundred eighty-eight thousand, eight hundred eighty-five".

Divisors: 1 5 139 695 296243 1481215 41177777 205888885