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254033893 is a prime number
BaseRepresentation
bin11110010010000…
…11111111100101
3122201000020222201
433021003333211
51010013041033
641112454501
76203152411
oct1711037745
9581006881
10254033893
11120439473
12710aa431
1340825819
1425a49d41
151747e47d
hexf243fe5

254033893 has 2 divisors, whose sum is σ = 254033894. Its totient is φ = 254033892.

The previous prime is 254033863. The next prime is 254033921. The reversal of 254033893 is 398330452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161239204 + 92794689 = 12698^2 + 9633^2 .

It is a cyclic number.

It is not a de Polignac number, because 254033893 - 25 = 254033861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254033863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127016946 + 127016947.

It is an arithmetic number, because the mean of its divisors is an integer number (127016947).

Almost surely, 2254033893 is an apocalyptic number.

It is an amenable number.

254033893 is a deficient number, since it is larger than the sum of its proper divisors (1).

254033893 is an equidigital number, since it uses as much as digits as its factorization.

254033893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 254033893 is about 15938.4407330203. The cubic root of 254033893 is about 633.3307205494.

The spelling of 254033893 in words is "two hundred fifty-four million, thirty-three thousand, eight hundred ninety-three".