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490543871 = 4386313219
BaseRepresentation
bin11101001111010…
…001101011111111
31021012001012200112
4131033101223333
52001034400441
6120402020235
715104361026
oct3517215377
91235035615
10490543871
11231998964
1211834767b
137a823c5c
14492138bd
152d0eb4eb
hex1d3d1aff

490543871 has 8 divisors (see below), whose sum is σ = 502571520. Its totient is φ = 478544472.

The previous prime is 490543829. The next prime is 490543873. The reversal of 490543871 is 178345094.

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

It is a cyclic number.

It is not a de Polignac number, because 490543871 - 210 = 490542847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490543873) 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, 30500 + ... + 43718.

It is an arithmetic number, because the mean of its divisors is an integer number (62821440).

Almost surely, 2490543871 is an apocalyptic number.

490543871 is a deficient number, since it is larger than the sum of its proper divisors (12027649).

490543871 is a wasteful number, since it uses less digits than its factorization.

490543871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14125.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 490543871 is about 22148.2250078872. The cubic root of 490543871 is about 788.6650911083.

It can be divided in two parts, 49054 and 3871, that added together give a palindrome (52925).

The spelling of 490543871 in words is "four hundred ninety million, five hundred forty-three thousand, eight hundred seventy-one".

Divisors: 1 43 863 13219 37109 568417 11407997 490543871