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490503886 = 21931416387
BaseRepresentation
bin11101001111000…
…111111011001110
31021011222011211121
4131033013323032
52001032111021
6120401111154
715104133325
oct3517077316
91234864747
10490503886
11231970914
121183284ba
137a80b9b2
14492030bc
152d0de741
hex1d3c7ece

490503886 has 16 divisors (see below), whose sum is σ = 799464960. Its totient is φ = 224848440.

The previous prime is 490503859. The next prime is 490503889. The reversal of 490503886 is 688305094.

It is a super-2 number, since 2×4905038862 = 481188124362201992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490503889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207016 + ... + 209371.

It is an arithmetic number, because the mean of its divisors is an integer number (49966560).

Almost surely, 2490503886 is an apocalyptic number.

490503886 is a deficient number, since it is larger than the sum of its proper divisors (308961074).

490503886 is a wasteful number, since it uses less digits than its factorization.

490503886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416439.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 490503886 is about 22147.3223212198. The cubic root of 490503886 is about 788.6436620834.

The spelling of 490503886 in words is "four hundred ninety million, five hundred three thousand, eight hundred eighty-six".

Divisors: 1 2 19 31 38 62 589 1178 416387 832774 7911353 12907997 15822706 25815994 245251943 490503886