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204507980644 = 221116328514777
BaseRepresentation
bin1011111001110110100…
…0000010001101100100
3201112212111211211101111
42332131220002031210
511322313020340034
6233541043434404
720526620103502
oct2763550021544
9645774754344
10204507980644
1179805472840
1233775385a04
131639225b346
149c80aa7672
1554be0dc364
hex2f9da02364

204507980644 has 24 divisors (see below), whose sum is σ = 392819581728. Its totient is φ = 92387874240.

The previous prime is 204507980629. The next prime is 204507980683. The reversal of 204507980644 is 446089705402.

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, 14250217 + ... + 14264560.

It is an arithmetic number, because the mean of its divisors is an integer number (16367482572).

Almost surely, 2204507980644 is an apocalyptic number.

It is an amenable number.

204507980644 is a deficient number, since it is larger than the sum of its proper divisors (188311601084).

204507980644 is a wasteful number, since it uses less digits than its factorization.

204507980644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28514955 (or 28514953 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 204507980644 in words is "two hundred four billion, five hundred seven million, nine hundred eighty thousand, six hundred forty-four".

Divisors: 1 2 4 11 22 44 163 326 652 1793 3586 7172 28514777 57029554 114059108 313662547 627325094 1254650188 4647908651 9295817302 18591634604 51126995161 102253990322 204507980644