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23881423 = 191256917
BaseRepresentation
bin101101100011…
…0011011001111
31122221022011011
41123012123033
522103201143
62211510051
7406663066
oct133063317
948838134
1023881423
1112531515
127bb8327
134c42027
1432591dd
15216ae9d
hex16c66cf

23881423 has 4 divisors (see below), whose sum is σ = 25138360. Its totient is φ = 22624488.

The previous prime is 23881421. The next prime is 23881483. The reversal of 23881423 is 32418832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23881423 - 21 = 23881421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23881421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628440 + ... + 628477.

It is an arithmetic number, because the mean of its divisors is an integer number (6284590).

Almost surely, 223881423 is an apocalyptic number.

23881423 is a deficient number, since it is larger than the sum of its proper divisors (1256937).

23881423 is a wasteful number, since it uses less digits than its factorization.

23881423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256936.

The product of its digits is 9216, while the sum is 31.

The square root of 23881423 is about 4886.8622857617. The cubic root of 23881423 is about 287.9740805828.

The spelling of 23881423 in words is "twenty-three million, eight hundred eighty-one thousand, four hundred twenty-three".

Divisors: 1 19 1256917 23881423