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23454 = 2321303
BaseRepresentation
bin101101110011110
31012011200
411232132
51222304
6300330
7125244
oct55636
935150
1023454
1116692
12116a6
13a8a2
148794
156e39
hex5b9e

23454 has 12 divisors (see below), whose sum is σ = 50856. Its totient is φ = 7812.

The previous prime is 23447. The next prime is 23459. The reversal of 23454 is 45432.

It is a happy number.

23454 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1303 = 23454 / (2 + 3 + 4 + 5 + 4).

It is a d-powerful number, because it can be written as 27 + 38 + 44 + 53 + 47 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 634 + ... + 669.

It is an arithmetic number, because the mean of its divisors is an integer number (4238).

223454 is an apocalyptic number.

23454 is an abundant number, since it is smaller than the sum of its proper divisors (27402).

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

23454 is a wasteful number, since it uses less digits than its factorization.

23454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311 (or 1308 counting only the distinct ones).

The product of its digits is 480, while the sum is 18.

The square root of 23454 is about 153.1469882172. The cubic root of 23454 is about 28.6245701454.

Subtracting from 23454 its sum of digits (18), we obtain a triangular number (23436 = T216).

Adding to 23454 its reverse (45432), we get a palindrome (68886).

The spelling of 23454 in words is "twenty-three thousand, four hundred fifty-four".

Divisors: 1 2 3 6 9 18 1303 2606 3909 7818 11727 23454