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1022 = 2773
BaseRepresentation
bin1111111110
31101212
433332
513042
64422
72660
oct1776
91355
101022
1184a
12712
13608
14530
15482
hex3fe

1022 has 8 divisors (see below), whose sum is σ = 1776. Its totient is φ = 432.

The previous prime is 1021. The next prime is 1031. The reversal of 1022 is 2201.

1022 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

1022 is a modest number, since divided by 22 gives 10 as remainder.

1022 is strictly pandigital in base 5.

It is a plaindrome in base 9.

It is a nialpdrome in base 2, base 4, base 6 and base 14.

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 997 and 1015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021) 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, 23 + ... + 50.

It is an arithmetic number, because the mean of its divisors is an integer number (222).

1022 is a Friedman number, since it can be written as 2^10-2, using all its digits and the basic arithmetic operations.

1022 is a deficient number, since it is larger than the sum of its proper divisors (754).

1022 is an equidigital number, since it uses as much as digits as its factorization.

1022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82.

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 1022 is about 31.9687347263. The cubic root of 1022 is about 10.0728020335.

The spelling of 1022 in words is "one thousand, twenty-two", and is thus an iban number.

Divisors: 1 2 7 14 73 146 511 1022