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42562 = 2131637
BaseRepresentation
bin1010011001000010
32011101101
422121002
52330222
6525014
7235042
oct123102
964341
1042562
1129a83
122076a
13164b0
1411722
15c927
hexa642

42562 has 8 divisors (see below), whose sum is σ = 68796. Its totient is φ = 19632.

The previous prime is 42557. The next prime is 42569. The reversal of 42562 is 26524.

It can be written as a sum of positive squares in 2 ways, for example, as 32761 + 9801 = 181^2 + 99^2 .

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

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (42569) 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, 793 + ... + 844.

242562 is an apocalyptic number.

42562 is a deficient number, since it is larger than the sum of its proper divisors (26234).

42562 is a wasteful number, since it uses less digits than its factorization.

42562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652.

The product of its digits is 480, while the sum is 19.

The square root of 42562 is about 206.3055985668. The cubic root of 42562 is about 34.9146218318.

The spelling of 42562 in words is "forty-two thousand, five hundred sixty-two".

Divisors: 1 2 13 26 1637 3274 21281 42562