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23340023 = 722391993
BaseRepresentation
bin101100100001…
…0001111110111
31121220210111022
41121002033313
521433340043
62152131355
7402246500
oct131021767
947823438
1023340023
11121a1783
127996b5b
134ab2785
143157ba7
1520b0868
hex16423f7

23340023 has 12 divisors (see below), whose sum is σ = 27277920. Its totient is φ = 19912032.

The previous prime is 23340019. The next prime is 23340047. The reversal of 23340023 is 32004332.

It is not a de Polignac number, because 23340023 - 22 = 23340019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23339983 and 23340010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23348023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10715 + ... + 12707.

It is an arithmetic number, because the mean of its divisors is an integer number (2273160).

Almost surely, 223340023 is an apocalyptic number.

23340023 is a deficient number, since it is larger than the sum of its proper divisors (3937897).

23340023 is a wasteful number, since it uses less digits than its factorization.

23340023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246 (or 2239 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 23340023 is about 4831.1513120580. The cubic root of 23340023 is about 285.7812686881.

Adding to 23340023 its reverse (32004332), we get a palindrome (55344355).

The spelling of 23340023 in words is "twenty-three million, three hundred forty thousand, twenty-three".

Divisors: 1 7 49 239 1673 1993 11711 13951 97657 476327 3334289 23340023