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68422 = 234211
BaseRepresentation
bin10000101101000110
310110212011
4100231012
54142142
61244434
7403324
oct205506
9113764
1068422
1147452
123371a
13251b3
1515417
hex10b46

68422 has 4 divisors (see below), whose sum is σ = 102636. Its totient is φ = 34210.

The previous prime is 68399. The next prime is 68437. The reversal of 68422 is 22486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22486 = 211243.

It is a junction number, because it is equal to n+sod(n) for n = 68393 and 68402.

It is a congruent number.

It is an unprimeable number.

68422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 17104 + ... + 17107.

It is an arithmetic number, because the mean of its divisors is an integer number (25659).

268422 is an apocalyptic number.

68422 is a deficient number, since it is larger than the sum of its proper divisors (34214).

68422 is a wasteful number, since it uses less digits than its factorization.

68422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34213.

The product of its digits is 768, while the sum is 22.

The square root of 68422 is about 261.5759927822. The cubic root of 68422 is about 40.9008111938.

The spelling of 68422 in words is "sixty-eight thousand, four hundred twenty-two".

Divisors: 1 2 34211 68422