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494506469 is a prime number
BaseRepresentation
bin11101011110011…
…001000111100101
31021110111112100102
4131132121013211
52003043201334
6121022553445
715153143552
oct3536310745
91243445312
10494506469
11234155036
12119738885
137b5b07a2
1449965a29
152d63067e
hex1d7991e5

494506469 has 2 divisors, whose sum is σ = 494506470. Its totient is φ = 494506468.

The previous prime is 494506423. The next prime is 494506471. The reversal of 494506469 is 964605494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397483969 + 97022500 = 19937^2 + 9850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-494506469 is a prime.

It is a super-2 number, since 2×4945064692 = 489073295765695922, which contains 22 as substring.

Together with 494506471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494506499) 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, 247253234 + 247253235.

It is an arithmetic number, because the mean of its divisors is an integer number (247253235).

Almost surely, 2494506469 is an apocalyptic number.

It is an amenable number.

494506469 is a deficient number, since it is larger than the sum of its proper divisors (1).

494506469 is an equidigital number, since it uses as much as digits as its factorization.

494506469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 47.

The square root of 494506469 is about 22237.5014109050. The cubic root of 494506469 is about 790.7830024515.

The spelling of 494506469 in words is "four hundred ninety-four million, five hundred six thousand, four hundred sixty-nine".