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196844443 = 285768899
BaseRepresentation
bin10111011101110…
…01101110011011
3111201101201210221
423232321232123
5400343010233
631311020511
74610102335
oct1356715633
9451351727
10196844443
11a1128164
1255b0a737
1331a20c03
141c200455
151243442d
hexbbb9b9b

196844443 has 4 divisors (see below), whose sum is σ = 196916200. Its totient is φ = 196772688.

The previous prime is 196844437. The next prime is 196844471. The reversal of 196844443 is 344448691.

196844443 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344448691 = 349986959.

It is a cyclic number.

It is not a de Polignac number, because 196844443 - 217 = 196713371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 196844443.

It is not an unprimeable number, because it can be changed into a prime (196844423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31593 + ... + 37306.

It is an arithmetic number, because the mean of its divisors is an integer number (49229050).

Almost surely, 2196844443 is an apocalyptic number.

196844443 is a deficient number, since it is larger than the sum of its proper divisors (71757).

196844443 is an equidigital number, since it uses as much as digits as its factorization.

196844443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71756.

The product of its digits is 331776, while the sum is 43.

The square root of 196844443 is about 14030.1262645779. The cubic root of 196844443 is about 581.7115938985.

The spelling of 196844443 in words is "one hundred ninety-six million, eight hundred forty-four thousand, four hundred forty-three".

Divisors: 1 2857 68899 196844443