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204547972 = 2287758309
BaseRepresentation
bin11000011000100…
…10011110000100
3112020220010001211
430030102132010
5404331013342
632144101204
75032425526
oct1414223604
9466803054
10204547972
11a5509a12
1258604804
13334ba405
141d247a16
1512e56c17
hexc312784

204547972 has 12 divisors (see below), whose sum is σ = 358373260. Its totient is φ = 102155616.

The previous prime is 204547969. The next prime is 204547979. The reversal of 204547972 is 279745402.

It can be written as a sum of positive squares in 2 ways, for example, as 137733696 + 66814276 = 11736^2 + 8174^2 .

It is not an unprimeable number, because it can be changed into a prime (204547979) 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, 25647 + ... + 32662.

Almost surely, 2204547972 is an apocalyptic number.

It is an amenable number.

204547972 is a deficient number, since it is larger than the sum of its proper divisors (153825288).

204547972 is a wasteful number, since it uses less digits than its factorization.

204547972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59190 (or 59188 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 204547972 is about 14302.0268493665. The cubic root of 204547972 is about 589.2031491015.

The spelling of 204547972 in words is "two hundred four million, five hundred forty-seven thousand, nine hundred seventy-two".

Divisors: 1 2 4 877 1754 3508 58309 116618 233236 51136993 102273986 204547972