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23249 = 67347
BaseRepresentation
bin101101011010001
31011220002
411223101
51220444
6255345
7124532
oct55321
934802
1023249
1116516
1211555
13a775
148689
156d4e
hex5ad1

23249 has 4 divisors (see below), whose sum is σ = 23664. Its totient is φ = 22836.

The previous prime is 23227. The next prime is 23251. The reversal of 23249 is 94232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23249 - 28 = 22993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 12.

It is a nialpdrome in base 8 and base 13.

It is a zygodrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 23249.

It is not an unprimeable number, because it can be changed into a prime (23209) 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, 107 + ... + 240.

It is an arithmetic number, because the mean of its divisors is an integer number (5916).

223249 is an apocalyptic number.

It is an amenable number.

23249 is a deficient number, since it is larger than the sum of its proper divisors (415).

23249 is an equidigital number, since it uses as much as digits as its factorization.

23249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414.

The product of its digits is 432, while the sum is 20.

The square root of 23249 is about 152.4762276553. The cubic root of 23249 is about 28.5409281663.

It can be divided in two parts, 23 and 249, that added together give a palindrome (272).

The spelling of 23249 in words is "twenty-three thousand, two hundred forty-nine".

Divisors: 1 67 347 23249