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23875 = 53191
BaseRepresentation
bin101110101000011
31012202021
411311003
51231000
6302311
7126415
oct56503
935667
1023875
1116a35
1211997
13ab37
1489b5
15711a
hex5d43

23875 has 8 divisors (see below), whose sum is σ = 29952. Its totient is φ = 19000.

The previous prime is 23873. The next prime is 23879. The reversal of 23875 is 57832.

It is not a de Polignac number, because 23875 - 21 = 23873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a d-powerful number, because it can be written as 212 + 39 + 82 + 7 + 52 .

It is a Duffinian number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (23873) 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, 30 + ... + 220.

It is an arithmetic number, because the mean of its divisors is an integer number (3744).

223875 is an apocalyptic number.

23875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23875 is a deficient number, since it is larger than the sum of its proper divisors (6077).

23875 is an equidigital number, since it uses as much as digits as its factorization.

23875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 196 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 23875 is about 154.5153714036. The cubic root of 23875 is about 28.7948261025.

It can be divided in two parts, 2387 and 5, that multiplied together give a triangular number (11935 = T154).

The spelling of 23875 in words is "twenty-three thousand, eight hundred seventy-five".

Divisors: 1 5 25 125 191 955 4775 23875