Base | Representation |
---|---|
bin | 10001000111010… |
… | …100000111011100 |
3 | 202000021201102021 |
4 | 101013110013130 |
5 | 1042001130301 |
6 | 44254105524 |
7 | 10054364632 |
oct | 2107240734 |
9 | 660251367 |
10 | 287130076 |
11 | 138094092 |
12 | 801ab2a4 |
13 | 47642b6c |
14 | 2a1c3352 |
15 | 1a31a8a1 |
hex | 111d41dc |
287130076 has 12 divisors (see below), whose sum is σ = 506093560. Its totient is φ = 142531920.
The previous prime is 287130043. The next prime is 287130079. The reversal of 287130076 is 670031782.
It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (287130079) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257655 + ... + 258766.
Almost surely, 2287130076 is an apocalyptic number.
It is an amenable number.
287130076 is a deficient number, since it is larger than the sum of its proper divisors (218963484).
287130076 is a wasteful number, since it uses less digits than its factorization.
287130076 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 516564 (or 516562 counting only the distinct ones).
The product of its (nonzero) digits is 14112, while the sum is 34.
The square root of 287130076 is about 16944.9129829575. The cubic root of 287130076 is about 659.7198658105.
The spelling of 287130076 in words is "two hundred eighty-seven million, one hundred thirty thousand, seventy-six".
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