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196241 = 311631
BaseRepresentation
bin101111111010010001
3100222012012
4233322101
522234431
64112305
71445063
oct577221
9328165
10196241
11124491
1295695
136b426
1451733
153d22b
hex2fe91

196241 has 4 divisors (see below), whose sum is σ = 197184. Its totient is φ = 195300.

The previous prime is 196201. The next prime is 196247. The reversal of 196241 is 142691.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 142691 = 293487.

It is a cyclic number.

It is not a de Polignac number, because 196241 - 26 = 196177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196247) 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, 5 + ... + 626.

It is an arithmetic number, because the mean of its divisors is an integer number (49296).

2196241 is an apocalyptic number.

It is an amenable number.

196241 is a deficient number, since it is larger than the sum of its proper divisors (943).

196241 is an equidigital number, since it uses as much as digits as its factorization.

196241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942.

The product of its digits is 432, while the sum is 23.

The square root of 196241 is about 442.9909705626. The cubic root of 196241 is about 58.1116557026. Note that the first 3 decimals are identical.

The spelling of 196241 in words is "one hundred ninety-six thousand, two hundred forty-one".

Divisors: 1 311 631 196241