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490191 = 31312569
BaseRepresentation
bin1110111101011001111
3220220102020
41313223033
5111141231
614301223
74111062
oct1675317
9826366
10490191
11305319
121b7813
13142170
14ca8d9
159a396
hex77acf

490191 has 8 divisors (see below), whose sum is σ = 703920. Its totient is φ = 301632.

The previous prime is 490183. The next prime is 490201. The reversal of 490191 is 191094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 490191 - 23 = 490183 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6246 + ... + 6323.

It is an arithmetic number, because the mean of its divisors is an integer number (87990).

2490191 is an apocalyptic number.

490191 is a deficient number, since it is larger than the sum of its proper divisors (213729).

490191 is a wasteful number, since it uses less digits than its factorization.

490191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12585.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 490191 is about 700.1364152792. The cubic root of 490191 is about 78.8475937930.

The spelling of 490191 in words is "four hundred ninety thousand, one hundred ninety-one".

Divisors: 1 3 13 39 12569 37707 163397 490191