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254489485 = 550897897
BaseRepresentation
bin11110010101100…
…11001110001101
3122201212101221111
433022303032031
51010122130420
641130332021
76210060565
oct1712631615
9581771844
10254489485
1112071a798
127128a011
1340954cc3
1425b27da5
151751e45a
hexf2b338d

254489485 has 4 divisors (see below), whose sum is σ = 305387388. Its totient is φ = 203591584.

The previous prime is 254489483. The next prime is 254489497. The reversal of 254489485 is 584984452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 70778569 + 183710916 = 8413^2 + 13554^2 .

It is a cyclic number.

It is not a de Polignac number, because 254489485 - 21 = 254489483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254489483) 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, 25448944 + ... + 25448953.

It is an arithmetic number, because the mean of its divisors is an integer number (76346847).

Almost surely, 2254489485 is an apocalyptic number.

It is an amenable number.

254489485 is a deficient number, since it is larger than the sum of its proper divisors (50897903).

254489485 is an equidigital number, since it uses as much as digits as its factorization.

254489485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50897902.

The product of its digits is 1843200, while the sum is 49.

The square root of 254489485 is about 15952.7265694614. The cubic root of 254489485 is about 633.7091058711.

It can be divided in two parts, 2544 and 89485, that added together give a palindrome (92029).

The spelling of 254489485 in words is "two hundred fifty-four million, four hundred eighty-nine thousand, four hundred eighty-five".

Divisors: 1 5 50897897 254489485