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23313423 = 372694127
BaseRepresentation
bin101100011101…
…1110000001111
31121212110000010
41120323300033
521432012143
62151404303
7402106110
oct130736017
947773003
1023313423
11121837a1
127983693
134aa3633
14314c207
1520a7a33
hex163bc0f

23313423 has 16 divisors (see below), whose sum is σ = 35665920. Its totient is φ = 13269216.

The previous prime is 23313413. The next prime is 23313431. The reversal of 23313423 is 32431332.

It is not a de Polignac number, because 23313423 - 29 = 23312911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 23313423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3586 + ... + 7712.

It is an arithmetic number, because the mean of its divisors is an integer number (2229120).

Almost surely, 223313423 is an apocalyptic number.

23313423 is a deficient number, since it is larger than the sum of its proper divisors (12352497).

23313423 is a wasteful number, since it uses less digits than its factorization.

23313423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406.

The product of its digits is 1296, while the sum is 21.

The square root of 23313423 is about 4828.3975602678. The cubic root of 23313423 is about 285.6726616625.

Adding to 23313423 its reverse (32431332), we get a palindrome (55744755).

The spelling of 23313423 in words is "twenty-three million, three hundred thirteen thousand, four hundred twenty-three".

Divisors: 1 3 7 21 269 807 1883 4127 5649 12381 28889 86667 1110163 3330489 7771141 23313423