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490449 = 3163483
BaseRepresentation
bin1110111101111010001
3220220202210
41313233101
5111143244
614302333
74111611
oct1675721
9826683
10490449
11305533
121b79a9
1314230b
14caa41
159a4b9
hex77bd1

490449 has 4 divisors (see below), whose sum is σ = 653936. Its totient is φ = 326964.

The previous prime is 490421. The next prime is 490453. The reversal of 490449 is 944094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 490449 - 25 = 490417 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (490459) 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 in 3 ways as a sum of consecutive naturals, for example, 81739 + ... + 81744.

It is an arithmetic number, because the mean of its divisors is an integer number (163484).

2490449 is an apocalyptic number.

It is an amenable number.

490449 is a deficient number, since it is larger than the sum of its proper divisors (163487).

490449 is a wasteful number, since it uses less digits than its factorization.

490449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163486.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 490449 is about 700.3206408496. The cubic root of 490449 is about 78.8614245320.

It can be divided in two parts, 490 and 449, that added together give a palindrome (939).

The spelling of 490449 in words is "four hundred ninety thousand, four hundred forty-nine".

Divisors: 1 3 163483 490449