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1968223 = 6433061
BaseRepresentation
bin111100000100001011111
310200222220011
413200201133
51000440343
6110104051
722505155
oct7404137
93628804
101968223
111124834
127ab027
1353bb3a
143933d5
1528d29d
hex1e085f

1968223 has 4 divisors (see below), whose sum is σ = 1971928. Its totient is φ = 1964520.

The previous prime is 1968203. The next prime is 1968233. The reversal of 1968223 is 3228691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1968223 - 29 = 1967711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888 + ... + 2173.

It is an arithmetic number, because the mean of its divisors is an integer number (492982).

21968223 is an apocalyptic number.

1968223 is a deficient number, since it is larger than the sum of its proper divisors (3705).

1968223 is an equidigital number, since it uses as much as digits as its factorization.

1968223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3704.

The product of its digits is 5184, while the sum is 31.

The square root of 1968223 is about 1402.9337119052. The cubic root of 1968223 is about 125.3212642734.

The spelling of 1968223 in words is "one million, nine hundred sixty-eight thousand, two hundred twenty-three".

Divisors: 1 643 3061 1968223