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42679 = 721367
BaseRepresentation
bin1010011010110111
32011112201
422122313
52331204
6525331
7235300
oct123267
964481
1042679
112a07a
1220847
1316570
14117a7
15c9a4
hexa6b7

42679 has 12 divisors (see below), whose sum is σ = 54264. Its totient is φ = 33264.

The previous prime is 42677. The next prime is 42683. The reversal of 42679 is 97624.

It is not a de Polignac number, because 42679 - 21 = 42677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 604 + ... + 670.

It is an arithmetic number, because the mean of its divisors is an integer number (4522).

242679 is an apocalyptic number.

42679 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

42679 is a deficient number, since it is larger than the sum of its proper divisors (11585).

42679 is a wasteful number, since it uses less digits than its factorization.

42679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 87 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 42679 is about 206.5889638872. The cubic root of 42679 is about 34.9465851898.

Subtracting 42679 from its reverse (97624), we obtain a palindrome (54945).

It can be divided in two parts, 426 and 79, that added together give a palindrome (505).

The spelling of 42679 in words is "forty-two thousand, six hundred seventy-nine".

Divisors: 1 7 13 49 67 91 469 637 871 3283 6097 42679