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204088287 = 3132402541
BaseRepresentation
bin11000010101000…
…10001111011111
3112020000202111110
430022202033133
5404221311122
632130153103
75025502404
oct1412421737
9466022443
10204088287
11a5225607
1258422793
1333389100
141d1682ab
1512db590c
hexc2a23df

204088287 has 12 divisors (see below), whose sum is σ = 294660744. Its totient is φ = 125592480.

The previous prime is 204088267. The next prime is 204088289. The reversal of 204088287 is 782880402.

It is not a de Polignac number, because 204088287 - 215 = 204055519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204088289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200764 + ... + 201777.

It is an arithmetic number, because the mean of its divisors is an integer number (24555062).

Almost surely, 2204088287 is an apocalyptic number.

204088287 is a deficient number, since it is larger than the sum of its proper divisors (90572457).

204088287 is a wasteful number, since it uses less digits than its factorization.

204088287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402570 (or 402557 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 204088287 is about 14285.9471859587. The cubic root of 204088287 is about 588.7614418014.

The spelling of 204088287 in words is "two hundred four million, eighty-eight thousand, two hundred eighty-seven".

Divisors: 1 3 13 39 169 507 402541 1207623 5233033 15699099 68029429 204088287