Base | Representation |
---|---|
bin | 1101000100000111… |
… | …10111001110000001 |
3 | 200002210212110202212 |
4 | 12202003313032001 |
5 | 103331023421042 |
6 | 3115551551505 |
7 | 335545033451 |
oct | 64203671601 |
9 | 20083773685 |
10 | 7013888897 |
11 | 2a7a1805a4 |
12 | 1438b2b595 |
13 | 87a159922 |
14 | 4a7733d61 |
15 | 2b0b5e482 |
hex | 1a20f7381 |
7013888897 has 4 divisors (see below), whose sum is σ = 7014192900. Its totient is φ = 7013584896.
The previous prime is 7013888881. The next prime is 7013888933. The reversal of 7013888897 is 7988883107.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7988883107 = 35327 ⋅226141.
It can be written as a sum of positive squares in 2 ways, for example, as 2710660096 + 4303228801 = 52064^2 + 65599^2 .
It is a cyclic number.
It is not a de Polignac number, because 7013888897 - 24 = 7013888881 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (7013888597) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114272 + ... + 164577.
It is an arithmetic number, because the mean of its divisors is an integer number (1753548225).
Almost surely, 27013888897 is an apocalyptic number.
It is an amenable number.
7013888897 is a deficient number, since it is larger than the sum of its proper divisors (304003).
7013888897 is a wasteful number, since it uses less digits than its factorization.
7013888897 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 304002.
The product of its (nonzero) digits is 5419008, while the sum is 59.
The square root of 7013888897 is about 83748.9635577659. The cubic root of 7013888897 is about 1914.1955138075.
The spelling of 7013888897 in words is "seven billion, thirteen million, eight hundred eighty-eight thousand, eight hundred ninety-seven".
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