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472447 = 1727791
BaseRepresentation
bin1110011010101111111
3220000002001
41303111333
5110104242
614043131
74005253
oct1632577
9800061
10472447
112a2a58
121a94a7
13137071
14c4263
1594eb7
hex7357f

472447 has 4 divisors (see below), whose sum is σ = 500256. Its totient is φ = 444640.

The previous prime is 472421. The next prime is 472457. The reversal of 472447 is 744274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744274 = 2372137.

It is a cyclic number.

It is not a de Polignac number, because 472447 - 27 = 472319 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 (472457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13879 + ... + 13912.

It is an arithmetic number, because the mean of its divisors is an integer number (125064).

2472447 is an apocalyptic number.

472447 is a deficient number, since it is larger than the sum of its proper divisors (27809).

472447 is a wasteful number, since it uses less digits than its factorization.

472447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27808.

The product of its digits is 6272, while the sum is 28.

The square root of 472447 is about 687.3478013350. The cubic root of 472447 is about 77.8844992264.

It can be divided in two parts, 472 and 447, that added together give a palindrome (919).

The spelling of 472447 in words is "four hundred seventy-two thousand, four hundred forty-seven", and thus it is an iban number.

Divisors: 1 17 27791 472447