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196811 = 2343199
BaseRepresentation
bin110000000011001011
3100222222022
4300003023
522244221
64115055
71446536
oct600313
9328868
10196811
1112495a
1295a8b
136b774
1451a1d
153d4ab
hex300cb

196811 has 8 divisors (see below), whose sum is σ = 211200. Its totient is φ = 182952.

The previous prime is 196799. The next prime is 196817. The reversal of 196811 is 118691.

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

It is a cyclic number.

It is not a de Polignac number, because 196811 - 210 = 195787 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196817) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 890 + ... + 1088.

It is an arithmetic number, because the mean of its divisors is an integer number (26400).

2196811 is an apocalyptic number.

196811 is a deficient number, since it is larger than the sum of its proper divisors (14389).

196811 is a wasteful number, since it uses less digits than its factorization.

196811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265.

The product of its digits is 432, while the sum is 26.

The square root of 196811 is about 443.6338580406. The cubic root of 196811 is about 58.1678648624.

The spelling of 196811 in words is "one hundred ninety-six thousand, eight hundred eleven".

Divisors: 1 23 43 199 989 4577 8557 196811