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23907 = 313613
BaseRepresentation
bin101110101100011
31012210110
411311203
51231112
6302403
7126462
oct56543
935713
1023907
1116a64
1211a03
13ab60
1489d9
15713c
hex5d63

23907 has 8 divisors (see below), whose sum is σ = 34384. Its totient is φ = 14688.

The previous prime is 23899. The next prime is 23909. The reversal of 23907 is 70932.

23907 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23907 - 23 = 23899 is a prime.

It is a d-powerful number, because it can be written as 29 + 33 + 94 + 0 + 75 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268 + ... + 345.

It is an arithmetic number, because the mean of its divisors is an integer number (4298).

223907 is an apocalyptic number.

23907 is a deficient number, since it is larger than the sum of its proper divisors (10477).

23907 is a wasteful number, since it uses less digits than its factorization.

23907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 23907 is about 154.6188862979. The cubic root of 23907 is about 28.8076850633.

The spelling of 23907 in words is "twenty-three thousand, nine hundred seven".

Divisors: 1 3 13 39 613 1839 7969 23907