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254427949 = 892858741
BaseRepresentation
bin11110010101001…
…00001100101101
3122201202021112101
433022210030231
51010113143244
641125135101
76206413306
oct1712441455
9581667471
10254427949
11120688536
127125a491
1340932ca9
1425b0d7ad
151750b0d4
hexf2a432d

254427949 has 4 divisors (see below), whose sum is σ = 257286780. Its totient is φ = 251569120.

The previous prime is 254427937. The next prime is 254427961. The reversal of 254427949 is 949724452.

254427949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (254427937) and next prime (254427961).

It can be written as a sum of positive squares in 2 ways, for example, as 132480100 + 121947849 = 11510^2 + 11043^2 .

It is a cyclic number.

It is not a de Polignac number, because 254427949 - 213 = 254419757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254427899 and 254427908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254427149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1429282 + ... + 1429459.

It is an arithmetic number, because the mean of its divisors is an integer number (64321695).

Almost surely, 2254427949 is an apocalyptic number.

It is an amenable number.

254427949 is a deficient number, since it is larger than the sum of its proper divisors (2858831).

254427949 is an equidigital number, since it uses as much as digits as its factorization.

254427949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858830.

The product of its digits is 725760, while the sum is 46.

The square root of 254427949 is about 15950.7977543445. The cubic root of 254427949 is about 633.6580244324.

The spelling of 254427949 in words is "two hundred fifty-four million, four hundred twenty-seven thousand, nine hundred forty-nine".

Divisors: 1 89 2858741 254427949