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9427 = 11857
BaseRepresentation
bin10010011010011
3110221011
42103103
5300202
6111351
736325
oct22323
913834
109427
1170a0
125557
1343a2
143615
152bd7
hex24d3

9427 has 4 divisors (see below), whose sum is σ = 10296. Its totient is φ = 8560.

The previous prime is 9421. The next prime is 9431. The reversal of 9427 is 7249.

9427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7249 = 11659.

It is a cyclic number.

It is not a de Polignac number, because 9427 - 23 = 9419 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 9398 and 9407.

It is not an unprimeable number, because it can be changed into a prime (9421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418 + ... + 439.

It is an arithmetic number, because the mean of its divisors is an integer number (2574).

29427 is an apocalyptic number.

9427 is a deficient number, since it is larger than the sum of its proper divisors (869).

9427 is a wasteful number, since it uses less digits than its factorization.

9427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868.

The product of its digits is 504, while the sum is 22.

The square root of 9427 is about 97.0927391724. The cubic root of 9427 is about 21.1247301064.

Adding to 9427 its sum of digits (22), we get a palindrome (9449).

It can be divided in two parts, 942 and 7, that added together give a palindrome (949).

The spelling of 9427 in words is "nine thousand, four hundred twenty-seven".

Divisors: 1 11 857 9427