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472947 = 3157649
BaseRepresentation
bin1110011011101110011
3220000202120
41303131303
5110113242
614045323
74006566
oct1633563
9800676
10472947
112a3372
121a9843
13137367
14c44dd
15951ec
hex73773

472947 has 4 divisors (see below), whose sum is σ = 630600. Its totient is φ = 315296.

The previous prime is 472939. The next prime is 472963. The reversal of 472947 is 749274.

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

It is a cyclic number.

It is not a de Polignac number, because 472947 - 23 = 472939 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 472947.

It is not an unprimeable number, because it can be changed into a prime (472907) 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, 78822 + ... + 78827.

It is an arithmetic number, because the mean of its divisors is an integer number (157650).

2472947 is an apocalyptic number.

472947 is a deficient number, since it is larger than the sum of its proper divisors (157653).

472947 is a wasteful number, since it uses less digits than its factorization.

472947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157652.

The product of its digits is 14112, while the sum is 33.

The square root of 472947 is about 687.7114220369. The cubic root of 472947 is about 77.9119651079.

Adding to 472947 its reverse (749274), we get a palindrome (1222221).

The spelling of 472947 in words is "four hundred seventy-two thousand, nine hundred forty-seven".

Divisors: 1 3 157649 472947