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490017 = 31131479
BaseRepresentation
bin1110111101000100001
3220220011210
41313220201
5111140032
614300333
74110423
oct1675041
9826153
10490017
11305180
121b76a9
13142068
14ca813
159a2cc
hex77a21

490017 has 16 divisors (see below), whose sum is σ = 737280. Its totient is φ = 286800.

The previous prime is 490003. The next prime is 490019. The reversal of 490017 is 710094.

It is not a de Polignac number, because 490017 - 24 = 490001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 489975 and 490002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784 + ... + 1262.

It is an arithmetic number, because the mean of its divisors is an integer number (46080).

2490017 is an apocalyptic number.

It is an amenable number.

490017 is a deficient number, since it is larger than the sum of its proper divisors (247263).

490017 is a wasteful number, since it uses less digits than its factorization.

490017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 490017 is about 700.0121427518. The cubic root of 490017 is about 78.8382633450.

The spelling of 490017 in words is "four hundred ninety thousand, seventeen".

Divisors: 1 3 11 31 33 93 341 479 1023 1437 5269 14849 15807 44547 163339 490017