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42263 = 133251
BaseRepresentation
bin1010010100010111
32010222022
422110113
52323023
6523355
7234134
oct122427
963868
1042263
1129831
122055b
1316310
141158b
15c7c8
hexa517

42263 has 4 divisors (see below), whose sum is σ = 45528. Its totient is φ = 39000.

The previous prime is 42257. The next prime is 42281. The reversal of 42263 is 36224.

42263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42263 - 212 = 38167 is a prime.

It is a super-2 number, since 2×422632 = 3572322338, which contains 22 as substring.

It is a d-powerful number, because it can be written as 45 + 213 + 215 + 62 + 35 .

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42263.

It is not an unprimeable number, because it can be changed into a prime (42223) 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, 1613 + ... + 1638.

It is an arithmetic number, because the mean of its divisors is an integer number (11382).

242263 is an apocalyptic number.

42263 is a deficient number, since it is larger than the sum of its proper divisors (3265).

42263 is a wasteful number, since it uses less digits than its factorization.

42263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264.

The product of its digits is 288, while the sum is 17.

The square root of 42263 is about 205.5796682554. The cubic root of 42263 is about 34.8326706884.

Adding to 42263 its reverse (36224), we get a palindrome (78487).

The spelling of 42263 in words is "forty-two thousand, two hundred sixty-three".

Divisors: 1 13 3251 42263