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254161291 is a prime number
BaseRepresentation
bin11110010011000…
…11000110001011
3122201020201202011
433021203012023
51010031130131
641115320351
76204223006
oct1711430613
9581221664
10254161291
1112051615a
12711500b7
134086b7c7
1425a8053d
15174a70b1
hexf26318b

254161291 has 2 divisors, whose sum is σ = 254161292. Its totient is φ = 254161290.

The previous prime is 254161241. The next prime is 254161331. The reversal of 254161291 is 192161452.

254161291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-254161291 is a prime.

It is not a weakly prime, because it can be changed into another prime (254161241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127080645 + 127080646.

It is an arithmetic number, because the mean of its divisors is an integer number (127080646).

Almost surely, 2254161291 is an apocalyptic number.

254161291 is a deficient number, since it is larger than the sum of its proper divisors (1).

254161291 is an equidigital number, since it uses as much as digits as its factorization.

254161291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The square root of 254161291 is about 15942.4367961739. The cubic root of 254161291 is about 633.4365746438.

It can be divided in two parts, 254161 and 291, that added together give a palindrome (254452).

The spelling of 254161291 in words is "two hundred fifty-four million, one hundred sixty-one thousand, two hundred ninety-one".