Base | Representation |
---|---|
bin | 100111000110011110011… |
… | …100111001000000111001 |
3 | 100111212122112212220221001 |
4 | 213012132130321000321 |
5 | 323011000302334224 |
6 | 5414221404245001 |
7 | 365062454042350 |
oct | 47063634710071 |
9 | 10455575786831 |
10 | 2687012933689 |
11 | 946612829327 |
12 | 374917240761 |
13 | 1664cc20a596 |
14 | 940a3034997 |
15 | 49d66d3a544 |
hex | 2719e739039 |
2687012933689 has 16 divisors (see below), whose sum is σ = 3073634657280. Its totient is φ = 2301082801920.
The previous prime is 2687012933659. The next prime is 2687012933749. The reversal of 2687012933689 is 9863392107862.
2687012933689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 2687012933689 - 211 = 2687012931641 is a prime.
It is a super-2 number, since 2×26870129336892 (a number of 26 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2687012933689.
It is not an unprimeable number, because it can be changed into a prime (2687012933659) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37851949 + ... + 37922869.
It is an arithmetic number, because the mean of its divisors is an integer number (192102166080).
Almost surely, 22687012933689 is an apocalyptic number.
It is an amenable number.
2687012933689 is a deficient number, since it is larger than the sum of its proper divisors (386621723591).
2687012933689 is a wasteful number, since it uses less digits than its factorization.
2687012933689 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 75720.
The product of its (nonzero) digits is 47029248, while the sum is 64.
The spelling of 2687012933689 in words is "two trillion, six hundred eighty-seven billion, twelve million, nine hundred thirty-three thousand, six hundred eighty-nine".
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