Search a number
-
+
254620193 is a prime number
BaseRepresentation
bin11110010110100…
…11001000100001
3122202010001020112
433023103020201
51010140321233
641133221105
76211143632
oct1713231041
9582101215
10254620193
111207a9a13
1271331795
134099c649
1425b5d889
1517548048
hexf2d3221

254620193 has 2 divisors, whose sum is σ = 254620194. Its totient is φ = 254620192.

The previous prime is 254620151. The next prime is 254620213. The reversal of 254620193 is 391026452.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243141649 + 11478544 = 15593^2 + 3388^2 .

It is a cyclic number.

It is not a de Polignac number, because 254620193 - 226 = 187511329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (254620123) 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 as a sum of consecutive naturals, namely, 127310096 + 127310097.

It is an arithmetic number, because the mean of its divisors is an integer number (127310097).

Almost surely, 2254620193 is an apocalyptic number.

It is an amenable number.

254620193 is a deficient number, since it is larger than the sum of its proper divisors (1).

254620193 is an equidigital number, since it uses as much as digits as its factorization.

254620193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 254620193 is about 15956.8227727201. The cubic root of 254620193 is about 633.8175801275.

The spelling of 254620193 in words is "two hundred fifty-four million, six hundred twenty thousand, one hundred ninety-three".