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490784259 = 3776930391
BaseRepresentation
bin11101010000001…
…100011000000011
31021012111102102210
4131100030120003
52001120044014
6120411113203
715106411620
oct3520143003
91235442383
10490784259
11232042529
12118442803
137a8a94b4
1449277347
152d147859
hex1d40c603

490784259 has 16 divisors (see below), whose sum is σ = 748858880. Its totient is φ = 280074240.

The previous prime is 490784257. The next prime is 490784267. The reversal of 490784259 is 952487094.

It is not a de Polignac number, because 490784259 - 21 = 490784257 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (490784251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954 + ... + 31344.

It is an arithmetic number, because the mean of its divisors is an integer number (46803680).

Almost surely, 2490784259 is an apocalyptic number.

490784259 is a deficient number, since it is larger than the sum of its proper divisors (258074621).

490784259 is a wasteful number, since it uses less digits than its factorization.

490784259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31170.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 490784259 is about 22153.6511437731. The cubic root of 490784259 is about 788.7938968925.

The spelling of 490784259 in words is "four hundred ninety million, seven hundred eighty-four thousand, two hundred fifty-nine".

Divisors: 1 3 7 21 769 2307 5383 16149 30391 91173 212737 638211 23370679 70112037 163594753 490784259