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9023 = 71289
BaseRepresentation
bin10001100111111
3110101012
42030333
5242043
6105435
735210
oct21477
913335
109023
116863
12527b
134151
143407
152a18
hex233f

9023 has 4 divisors (see below), whose sum is σ = 10320. Its totient is φ = 7728.

The previous prime is 9013. The next prime is 9029. The reversal of 9023 is 3209.

It is a happy number.

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

It is not a de Polignac number, because 9023 - 24 = 9007 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 8989 and 9007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9029) 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, 638 + ... + 651.

It is an arithmetic number, because the mean of its divisors is an integer number (2580).

9023 is a deficient number, since it is larger than the sum of its proper divisors (1297).

9023 is a wasteful number, since it uses less digits than its factorization.

9023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 9023 is about 94.9894731010. The cubic root of 9023 is about 20.8185423903.

Subtracting from 9023 its sum of digits (14), we obtain a palindrome (9009).

The spelling of 9023 in words is "nine thousand, twenty-three".

Divisors: 1 7 1289 9023