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490873069 is a prime number
BaseRepresentation
bin11101010000100…
…010000011101101
31021012122221021001
4131100202003231
52001130414234
6120413040301
715110231551
oct3520420355
91235587231
10490873069
112320a3225
12118486091
137a90aa4b
144929b861
152d163d14
hex1d4220ed

490873069 has 2 divisors, whose sum is σ = 490873070. Its totient is φ = 490873068.

The previous prime is 490873049. The next prime is 490873073. The reversal of 490873069 is 960378094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 486731844 + 4141225 = 22062^2 + 2035^2 .

It is a cyclic number.

It is not a de Polignac number, because 490873069 - 211 = 490871021 is a prime.

It is a super-2 number, since 2×4908730692 = 481912739738957522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490873049) 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, 245436534 + 245436535.

It is an arithmetic number, because the mean of its divisors is an integer number (245436535).

Almost surely, 2490873069 is an apocalyptic number.

It is an amenable number.

490873069 is a deficient number, since it is larger than the sum of its proper divisors (1).

490873069 is an equidigital number, since it uses as much as digits as its factorization.

490873069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 490873069 is about 22155.6554631092. The cubic root of 490873069 is about 788.8414728281.

It can be divided in two parts, 4908 and 73069, that added together give a palindrome (77977).

The spelling of 490873069 in words is "four hundred ninety million, eight hundred seventy-three thousand, sixty-nine".