21623

21623 is a prime number. It is the 2386th prime number. In binary, 21623 is represented as 1010100010110111. The sum of its digits is 14. 21623 is not a palindrome in base 10. It is also not a perfect square or a perfect cube. When divided by small prime numbers, 21623 yields remainders of 1 when divided by 2, 1 when divided by 3, 3 when divided by 5, 4 when divided by 7, 6 when divided by 11, 10 when divided by 13, 12 when divided by 17, 15 when divided by 19, and 18 when divided by 23. The prime factorization of 21623 is simply 21623, as it is a prime number itself. Its numerical value is twenty-one thousand six hundred and twenty-three. The digits in descending order are 6, 3, 2, 2, 1. The digits in ascending order are 1, 2, 2, 3, 6.