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285006963 = 3313064591
BaseRepresentation
bin10000111111001…
…101110001110011
3201212021212001110
4100333031301303
51040430210323
644140404403
710030343043
oct2077156163
9655255043
10285006963
11136973a4a
127b546703
134707b697
1429bcd723
151a04b793
hex10fcdc73

285006963 has 8 divisors (see below), whose sum is σ = 392267776. Its totient is φ = 183875400.

The previous prime is 285006959. The next prime is 285006971. The reversal of 285006963 is 369600582.

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

It is not a de Polignac number, because 285006963 - 22 = 285006959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285008963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1532203 + ... + 1532388.

It is an arithmetic number, because the mean of its divisors is an integer number (49033472).

Almost surely, 2285006963 is an apocalyptic number.

285006963 is a deficient number, since it is larger than the sum of its proper divisors (107260813).

285006963 is a wasteful number, since it uses less digits than its factorization.

285006963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064625.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 285006963 is about 16882.1492411363. The cubic root of 285006963 is about 658.0897958278.

The spelling of 285006963 in words is "two hundred eighty-five million, six thousand, nine hundred sixty-three".

Divisors: 1 3 31 93 3064591 9193773 95002321 285006963