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23317893 = 322590877
BaseRepresentation
bin101100011110…
…0110110000101
31121212200010200
41120330312011
521432133033
62151441113
7402125124
oct130746605
947780120
1023317893
1112187095
127986199
134aa5691
14314dabb
1520a9013
hex163cd85

23317893 has 6 divisors (see below), whose sum is σ = 33681414. Its totient is φ = 15545256.

The previous prime is 23317849. The next prime is 23317913. The reversal of 23317893 is 39871332.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13972644 + 9345249 = 3738^2 + 3057^2 .

It is not a de Polignac number, because 23317893 - 210 = 23316869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23317813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1295430 + ... + 1295447.

It is an arithmetic number, because the mean of its divisors is an integer number (5613569).

Almost surely, 223317893 is an apocalyptic number.

It is an amenable number.

23317893 is a deficient number, since it is larger than the sum of its proper divisors (10363521).

23317893 is a wasteful number, since it uses less digits than its factorization.

23317893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590883 (or 2590880 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 23317893 is about 4828.8604245722. The cubic root of 23317893 is about 285.6909183151.

The spelling of 23317893 in words is "twenty-three million, three hundred seventeen thousand, eight hundred ninety-three".

Divisors: 1 3 9 2590877 7772631 23317893