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23479 = 53443
BaseRepresentation
bin101101110110111
31012012121
411232313
51222404
6300411
7125311
oct55667
935177
1023479
1116705
1211707
13a8c1
1487b1
156e54
hex5bb7

23479 has 4 divisors (see below), whose sum is σ = 23976. Its totient is φ = 22984.

The previous prime is 23473. The next prime is 23497. The reversal of 23479 is 97432.

It can be divided in two parts, 234 and 79, that added together give a palindrome (313).

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23479 - 25 = 23447 is a prime.

It is a cake number, because a cake can be divided into 23479 parts by 52 planar cuts.

It is a Duffinian number.

23479 is a lucky number.

It is a plaindrome in base 8 and base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169 + ... + 274.

It is an arithmetic number, because the mean of its divisors is an integer number (5994).

223479 is an apocalyptic number.

23479 is a deficient number, since it is larger than the sum of its proper divisors (497).

23479 is an equidigital number, since it uses as much as digits as its factorization.

23479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496.

The product of its digits is 1512, while the sum is 25.

The square root of 23479 is about 153.2285874111. The cubic root of 23479 is about 28.6347369988.

The spelling of 23479 in words is "twenty-three thousand, four hundred seventy-nine".

Divisors: 1 53 443 23479