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490468057 is a prime number
BaseRepresentation
bin11101001110111…
…111001011011001
31021011220100200121
4131032333023121
52001024434212
6120400233241
715103624012
oct3516771331
91234810617
10490468057
11231946a02
1211830b821
137a7c85b1
14491d4009
152d0d3d07
hex1d3bf2d9

490468057 has 2 divisors, whose sum is σ = 490468058. Its totient is φ = 490468056.

The previous prime is 490468001. The next prime is 490468067. The reversal of 490468057 is 750864094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 460917961 + 29550096 = 21469^2 + 5436^2 .

It is a cyclic number.

It is not a de Polignac number, because 490468057 - 215 = 490435289 is a prime.

It is equal to p25879705 and since 490468057 and 25879705 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (490468067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245234028 + 245234029.

It is an arithmetic number, because the mean of its divisors is an integer number (245234029).

Almost surely, 2490468057 is an apocalyptic number.

It is an amenable number.

490468057 is a deficient number, since it is larger than the sum of its proper divisors (1).

490468057 is an equidigital number, since it uses as much as digits as its factorization.

490468057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 490468057 is about 22146.5134276256. The cubic root of 490468057 is about 788.6244593800.

The spelling of 490468057 in words is "four hundred ninety million, four hundred sixty-eight thousand, fifty-seven".