Search a number
-
+
194297 = 331587
BaseRepresentation
bin101111011011111001
3100212112012
4233123321
522204142
64055305
71436315
oct573371
9325465
10194297
11122a84
1294535
136a58c
1450b45
153c882
hex2f6f9

194297 has 4 divisors (see below), whose sum is σ = 195216. Its totient is φ = 193380.

The previous prime is 194269. The next prime is 194309. The reversal of 194297 is 792491.

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: 792491 = 7113213.

It is a cyclic number.

It is not a de Polignac number, because 194297 - 214 = 177913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194267) 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 in 3 ways as a sum of consecutive naturals, for example, 38 + ... + 624.

It is an arithmetic number, because the mean of its divisors is an integer number (48804).

2194297 is an apocalyptic number.

It is an amenable number.

194297 is a deficient number, since it is larger than the sum of its proper divisors (919).

194297 is an equidigital number, since it uses as much as digits as its factorization.

194297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918.

The product of its digits is 4536, while the sum is 32.

The square root of 194297 is about 440.7913338531. The cubic root of 194297 is about 57.9191302600.

The spelling of 194297 in words is "one hundred ninety-four thousand, two hundred ninety-seven".

Divisors: 1 331 587 194297