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23222313 = 3219139977
BaseRepresentation
bin101100010010…
…1100000101001
31121200211000200
41120211200221
521421103223
62145422413
7401246352
oct130454051
947624020
1023222313
11121212a4
12793aa09
134a7101a
143126d29
15208aa43
hex1625829

23222313 has 24 divisors (see below), whose sum is σ = 35599200. Its totient is φ = 14546304.

The previous prime is 23222299. The next prime is 23222363. The reversal of 23222313 is 31322232.

It is a happy number.

It is not a de Polignac number, because 23222313 - 28 = 23222057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23222363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23281 + ... + 24257.

It is an arithmetic number, because the mean of its divisors is an integer number (1483300).

Almost surely, 223222313 is an apocalyptic number.

It is an amenable number.

23222313 is a deficient number, since it is larger than the sum of its proper divisors (12376887).

23222313 is a wasteful number, since it uses less digits than its factorization.

23222313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1138 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 23222313 is about 4818.9535171031. The cubic root of 23222313 is about 285.3000349034.

Adding to 23222313 its reverse (31322232), we get a palindrome (54544545).

The spelling of 23222313 in words is "twenty-three million, two hundred twenty-two thousand, three hundred thirteen".

Divisors: 1 3 9 19 57 139 171 417 977 1251 2641 2931 7923 8793 18563 23769 55689 135803 167067 407409 1222227 2580257 7740771 23222313