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123224 = 2373211
BaseRepresentation
bin11110000101011000
320021000212
4132011120
512420344
62350252
71022153
oct360530
9207025
10123224
1184642
125b388
134411a
1432c9a
152679e
hex1e158

123224 has 16 divisors (see below), whose sum is σ = 235320. Its totient is φ = 60480.

The previous prime is 123217. The next prime is 123229. The reversal of 123224 is 422321.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 123199 and 123208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123229) by changing a digit.

123224 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479 + ... + 689.

2123224 is an apocalyptic number.

It is an amenable number.

123224 is a deficient number, since it is larger than the sum of its proper divisors (112096).

123224 is a wasteful number, since it uses less digits than its factorization.

123224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 286 counting only the distinct ones).

The product of its digits is 96, while the sum is 14.

The square root of 123224 is about 351.0327620038. The cubic root of 123224 is about 49.7620695782.

Adding to 123224 its reverse (422321), we get a palindrome (545545).

The spelling of 123224 in words is "one hundred twenty-three thousand, two hundred twenty-four", and thus it is an iban number.

Divisors: 1 2 4 8 73 146 211 292 422 584 844 1688 15403 30806 61612 123224