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472287 = 3157429
BaseRepresentation
bin1110011010011011111
3212222212010
41303103133
5110103122
614042303
74004634
oct1632337
9788763
10472287
112a2922
121a9393
13136c7a
14c418b
1594e0c
hex734df

472287 has 4 divisors (see below), whose sum is σ = 629720. Its totient is φ = 314856.

The previous prime is 472273. The next prime is 472289. The reversal of 472287 is 782274.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 472287 - 27 = 472159 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 472287.

It is not an unprimeable number, because it can be changed into a prime (472289) 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 3 ways as a sum of consecutive naturals, for example, 78712 + ... + 78717.

It is an arithmetic number, because the mean of its divisors is an integer number (157430).

2472287 is an apocalyptic number.

472287 is a deficient number, since it is larger than the sum of its proper divisors (157433).

472287 is a wasteful number, since it uses less digits than its factorization.

472287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157432.

The product of its digits is 6272, while the sum is 30.

The square root of 472287 is about 687.2314020765. The cubic root of 472287 is about 77.8757060518.

The spelling of 472287 in words is "four hundred seventy-two thousand, two hundred eighty-seven".

Divisors: 1 3 157429 472287