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42313 = 1719131
BaseRepresentation
bin1010010101001001
32011001011
422111021
52323223
6523521
7234235
oct122511
964034
1042313
1129877
12205a1
131634b
14115c5
15c80d
hexa549

42313 has 8 divisors (see below), whose sum is σ = 47520. Its totient is φ = 37440.

The previous prime is 42307. The next prime is 42323. The reversal of 42313 is 31324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42313 - 25 = 42281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42293 and 42302.

It is not an unprimeable number, because it can be changed into a prime (42323) 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 7 ways as a sum of consecutive naturals, for example, 258 + ... + 388.

It is an arithmetic number, because the mean of its divisors is an integer number (5940).

242313 is an apocalyptic number.

It is an amenable number.

42313 is a deficient number, since it is larger than the sum of its proper divisors (5207).

42313 is a wasteful number, since it uses less digits than its factorization.

42313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167.

The product of its digits is 72, while the sum is 13.

The square root of 42313 is about 205.7012396657. The cubic root of 42313 is about 34.8464017467.

Adding to 42313 its reverse (31324), we get a palindrome (73637).

The spelling of 42313 in words is "forty-two thousand, three hundred thirteen".

Divisors: 1 17 19 131 323 2227 2489 42313