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321983 is a prime number
BaseRepresentation
bin1001110100110111111
3121100200022
41032212333
540300413
610522355
72510504
oct1164677
9540608
10321983
111aaa02
121363bb
13b372c
14854ab
1565608
hex4e9bf

321983 has 2 divisors, whose sum is σ = 321984. Its totient is φ = 321982.

The previous prime is 321961. The next prime is 321991. The reversal of 321983 is 389123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321983 - 212 = 317887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160991 + 160992.

It is an arithmetic number, because the mean of its divisors is an integer number (160992).

2321983 is an apocalyptic number.

321983 is a deficient number, since it is larger than the sum of its proper divisors (1).

321983 is an equidigital number, since it uses as much as digits as its factorization.

321983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 321983 is about 567.4354588850. The cubic root of 321983 is about 68.5400337848.

The spelling of 321983 in words is "three hundred twenty-one thousand, nine hundred eighty-three".