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205576112972 = 22109517469279
BaseRepresentation
bin1011111101110101001…
…0101000101101001100
3201122121221201120111002
42333131102220231030
511332004441103342
6234235041315432
720565240062066
oct2773522505514
9648557646432
10205576112972
117a2033a142a
1233a13035b78
1316502631bc9
149d428ac736
155532c7ad32
hex2fdd4a8b4c

205576112972 has 12 divisors (see below), whose sum is σ = 359762249280. Its totient is φ = 102786898896.

The previous prime is 205576112939. The next prime is 205576112983. The reversal of 205576112972 is 279211675502.

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, 203429 + ... + 672707.

It is an arithmetic number, because the mean of its divisors is an integer number (29980187440).

Almost surely, 2205576112972 is an apocalyptic number.

It is an amenable number.

205576112972 is a deficient number, since it is larger than the sum of its proper divisors (154186136308).

205576112972 is a wasteful number, since it uses less digits than its factorization.

205576112972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578800 (or 578798 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 205576112972 in words is "two hundred five billion, five hundred seventy-six million, one hundred twelve thousand, nine hundred seventy-two".

Divisors: 1 2 4 109517 219034 438068 469279 938558 1877116 51394028243 102788056486 205576112972