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284949663 = 3353926839
BaseRepresentation
bin10000111110111…
…111110010011111
3201212011221110020
4100332333302133
51040421342123
644135243223
710030014015
oct2076776237
9655157406
10284949663
11136934999
127b519513
134705b58b
1429bb68b5
151a0397e3
hex10fbfc9f

284949663 has 8 divisors (see below), whose sum is σ = 380054400. Its totient is φ = 189905688.

The previous prime is 284949641. The next prime is 284949671. The reversal of 284949663 is 366949482.

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

It is not a de Polignac number, because 284949663 - 214 = 284933279 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284949463) 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, 2803 + ... + 24036.

It is an arithmetic number, because the mean of its divisors is an integer number (47506800).

Almost surely, 2284949663 is an apocalyptic number.

284949663 is a deficient number, since it is larger than the sum of its proper divisors (95104737).

284949663 is a wasteful number, since it uses less digits than its factorization.

284949663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30381.

The product of its digits is 2239488, while the sum is 51.

The square root of 284949663 is about 16880.4520970263. The cubic root of 284949663 is about 658.0456903876.

The spelling of 284949663 in words is "two hundred eighty-four million, nine hundred forty-nine thousand, six hundred sixty-three".

Divisors: 1 3 3539 10617 26839 80517 94983221 284949663