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23144 = 2311263
BaseRepresentation
bin101101001101000
31011202012
411221220
51220034
6255052
7124322
oct55150
934665
1023144
1116430
1211488
13a6c4
148612
156cce
hex5a68

23144 has 16 divisors (see below), whose sum is σ = 47520. Its totient is φ = 10480.

The previous prime is 23143. The next prime is 23159. The reversal of 23144 is 44132.

Adding to 23144 its reverse (44132), we get a palindrome (67276).

It is a plaindrome in base 12 and base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 23144.

It is not an unprimeable number, because it can be changed into a prime (23143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44 + ... + 219.

It is an arithmetic number, because the mean of its divisors is an integer number (2970).

223144 is an apocalyptic number.

It is an amenable number.

23144 is an abundant number, since it is smaller than the sum of its proper divisors (24376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23760).

23144 is a wasteful number, since it uses less digits than its factorization.

23144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 276 counting only the distinct ones).

The product of its digits is 96, while the sum is 14.

The square root of 23144 is about 152.1315220459. The cubic root of 23144 is about 28.4978966335.

The spelling of 23144 in words is "twenty-three thousand, one hundred forty-four", and thus it is an iban number.

Divisors: 1 2 4 8 11 22 44 88 263 526 1052 2104 2893 5786 11572 23144