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490907 = 2811747
BaseRepresentation
bin1110111110110011011
3220221101202
41313312123
5111202112
614304415
74113134
oct1676633
9827352
10490907
1130590a
121b810b
131425a1
14cac8b
159a6c2
hex77d9b

490907 has 4 divisors (see below), whose sum is σ = 492936. Its totient is φ = 488880.

The previous prime is 490891. The next prime is 490913. The reversal of 490907 is 709094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 490907 - 24 = 490891 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 490907.

It is not an unprimeable number, because it can be changed into a prime (490927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593 + ... + 1154.

It is an arithmetic number, because the mean of its divisors is an integer number (123234).

2490907 is an apocalyptic number.

490907 is a deficient number, since it is larger than the sum of its proper divisors (2029).

490907 is a wasteful number, since it uses less digits than its factorization.

490907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 490907 is about 700.6475576208. The cubic root of 490907 is about 78.8859648310.

The spelling of 490907 in words is "four hundred ninety thousand, nine hundred seven".

Divisors: 1 281 1747 490907