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204871315 = 5113724933
BaseRepresentation
bin11000011011000…
…01011010010011
3112021111112121111
430031201122103
5404421340230
632155034151
75035243315
oct1415413223
9467445544
10204871315
11a570a940
125873b957
13335a163c
141d2cd7b5
1512ebc92a
hexc361693

204871315 has 8 divisors (see below), whose sum is σ = 268195248. Its totient is φ = 148997280.

The previous prime is 204871313. The next prime is 204871339. The reversal of 204871315 is 513178402.

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

It is not a de Polignac number, because 204871315 - 21 = 204871313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204871313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1862412 + ... + 1862521.

It is an arithmetic number, because the mean of its divisors is an integer number (33524406).

Almost surely, 2204871315 is an apocalyptic number.

204871315 is a deficient number, since it is larger than the sum of its proper divisors (63323933).

204871315 is a wasteful number, since it uses less digits than its factorization.

204871315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724949.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 204871315 is about 14313.3264826874. The cubic root of 204871315 is about 589.5134502556.

The spelling of 204871315 in words is "two hundred four million, eight hundred seventy-one thousand, three hundred fifteen".

Divisors: 1 5 11 55 3724933 18624665 40974263 204871315