Base | Representation |
---|---|
bin | 110011110010111… |
… | …011011101000111 |
3 | 2020120011012110021 |
4 | 303302323131013 |
5 | 3234430114433 |
6 | 222121240011 |
7 | 30351165610 |
oct | 6362733507 |
9 | 2216135407 |
10 | 868988743 |
11 | 406581117 |
12 | 203033007 |
13 | 10b05932c |
14 | 835a6c07 |
15 | 5145322d |
hex | 33cbb747 |
868988743 has 4 divisors (see below), whose sum is σ = 993130000. Its totient is φ = 744847488.
The previous prime is 868988651. The next prime is 868988767. The reversal of 868988743 is 347889868.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 868988743 - 225 = 835434311 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (868988543) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62070618 + ... + 62070631.
It is an arithmetic number, because the mean of its divisors is an integer number (248282500).
Almost surely, 2868988743 is an apocalyptic number.
868988743 is a deficient number, since it is larger than the sum of its proper divisors (124141257).
868988743 is a wasteful number, since it uses less digits than its factorization.
868988743 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124141256.
The product of its digits is 18579456, while the sum is 61.
The square root of 868988743 is about 29478.6150115639. The cubic root of 868988743 is about 954.2702475866.
The spelling of 868988743 in words is "eight hundred sixty-eight million, nine hundred eighty-eight thousand, seven hundred forty-three".
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