Search a number
-
+
194024249 = 971199819
BaseRepresentation
bin10111001000010…
…01001100111001
3111112002110020022
423210021030321
5344132233444
631130340225
74544115236
oct1344111471
9445073208
10194024249
119a581321
1254b8a675
1331274363
141baa878d
15120789ee
hexb909339

194024249 has 4 divisors (see below), whose sum is σ = 194225040. Its totient is φ = 193823460.

The previous prime is 194024227. The next prime is 194024261. The reversal of 194024249 is 942420491.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-194024249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194024449) 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, 98939 + ... + 100880.

It is an arithmetic number, because the mean of its divisors is an integer number (48556260).

Almost surely, 2194024249 is an apocalyptic number.

It is an amenable number.

194024249 is a deficient number, since it is larger than the sum of its proper divisors (200791).

194024249 is an equidigital number, since it uses as much as digits as its factorization.

194024249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200790.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 194024249 is about 13929.2587383536. The cubic root of 194024249 is about 578.9201558749.

The spelling of 194024249 in words is "one hundred ninety-four million, twenty-four thousand, two hundred forty-nine".

Divisors: 1 971 199819 194024249