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490031 is a prime number
BaseRepresentation
bin1110111101000101111
3220220012022
41313220233
5111140111
614300355
74110443
oct1675057
9826168
10490031
11305193
121b76bb
13142079
14ca823
159a2db
hex77a2f

490031 has 2 divisors, whose sum is σ = 490032. Its totient is φ = 490030.

The previous prime is 490019. The next prime is 490033. The reversal of 490031 is 130094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 490031 - 214 = 473647 is a prime.

It is a super-2 number, since 2×4900312 = 480260761922, which contains 22 as substring.

Together with 490033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 489991 and 490009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490033) 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, 245015 + 245016.

It is an arithmetic number, because the mean of its divisors is an integer number (245016).

2490031 is an apocalyptic number.

490031 is a deficient number, since it is larger than the sum of its proper divisors (1).

490031 is an equidigital number, since it uses as much as digits as its factorization.

490031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 490031 is about 700.0221425069. The cubic root of 490031 is about 78.8390141524.

The spelling of 490031 in words is "four hundred ninety thousand, thirty-one".