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204671271 = 3743226657
BaseRepresentation
bin11000011001100…
…00100100100111
3112021010101012110
430030300210213
5404343440041
632150452103
75033451150
oct1414604447
9467111173
10204671271
11a5593612
1258664033
133353157c
141d27a927
1512e7d516
hexc330927

204671271 has 16 divisors (see below), whose sum is σ = 319134464. Its totient is φ = 114234624.

The previous prime is 204671239. The next prime is 204671281. The reversal of 204671271 is 172176402.

It is not a de Polignac number, because 204671271 - 25 = 204671239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204671231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112426 + ... + 114231.

It is an arithmetic number, because the mean of its divisors is an integer number (19945904).

Almost surely, 2204671271 is an apocalyptic number.

204671271 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

204671271 is a deficient number, since it is larger than the sum of its proper divisors (114463193).

204671271 is a wasteful number, since it uses less digits than its factorization.

204671271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226710.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 204671271 is about 14306.3367428563. The cubic root of 204671271 is about 589.3215134573.

The spelling of 204671271 in words is "two hundred four million, six hundred seventy-one thousand, two hundred seventy-one".

Divisors: 1 3 7 21 43 129 301 903 226657 679971 1586599 4759797 9746251 29238753 68223757 204671271