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285293002 = 2142646501
BaseRepresentation
bin10001000000010…
…011100111001010
3201212211101102111
4101000103213022
51041013334002
644150452534
710032644011
oct2100234712
9655741374
10285293002
11137049945
127b66414a
134714b937
1429c65a78
151a0a63d7
hex110139ca

285293002 has 4 divisors (see below), whose sum is σ = 427939506. Its totient is φ = 142646500.

The previous prime is 285292993. The next prime is 285293017. The reversal of 285293002 is 200392582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 279859441 + 5433561 = 16729^2 + 2331^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71323249 + ... + 71323252.

Almost surely, 2285293002 is an apocalyptic number.

285293002 is a deficient number, since it is larger than the sum of its proper divisors (142646504).

285293002 is a wasteful number, since it uses less digits than its factorization.

285293002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142646503.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 285293002 is about 16890.6187571681. The cubic root of 285293002 is about 658.3098798175.

The spelling of 285293002 in words is "two hundred eighty-five million, two hundred ninety-three thousand, two".

Divisors: 1 2 142646501 285293002