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490574894 = 2503487649
BaseRepresentation
bin11101001111011…
…001010000101110
31021012002210020112
4131033121100232
52001041344034
6120402420022
715104550335
oct3517312056
91235083215
10490574894
11231a0a1a7
12118361612
137a835104
1449220d1c
152d1057ce
hex1d3d942e

490574894 has 8 divisors (see below), whose sum is σ = 737326800. Its totient is φ = 244799296.

The previous prime is 490574893. The next prime is 490574983. The reversal of 490574894 is 498475094.

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

It is a super-3 number, since 3×4905748943 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490574893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242819 + ... + 244830.

It is an arithmetic number, because the mean of its divisors is an integer number (92165850).

Almost surely, 2490574894 is an apocalyptic number.

490574894 is a deficient number, since it is larger than the sum of its proper divisors (246751906).

490574894 is a wasteful number, since it uses less digits than its factorization.

490574894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488154.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 490574894 is about 22148.9253463910. The cubic root of 490574894 is about 788.6817163568.

The spelling of 490574894 in words is "four hundred ninety million, five hundred seventy-four thousand, eight hundred ninety-four".

Divisors: 1 2 503 1006 487649 975298 245287447 490574894