Base | Representation |
---|---|
bin | 1100110010110101… |
… | …11111011011000101 |
3 | 122201201011011101222 |
4 | 12121122333123011 |
5 | 103031423104434 |
6 | 3053333330125 |
7 | 332135112215 |
oct | 63132773305 |
9 | 18651134358 |
10 | 6868956869 |
11 | 2a0538aa65 |
12 | 13b8496945 |
13 | 856113728 |
14 | 4923a8245 |
15 | 2a308172e |
hex | 1996bf6c5 |
6868956869 has 8 divisors (see below), whose sum is σ = 7069336032. Its totient is φ = 6670424880.
The previous prime is 6868956851. The next prime is 6868956889. The reversal of 6868956869 is 9686598686.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 6868956869 - 28 = 6868956613 is a prime.
It is a super-2 number, since 2×68689568692 = 94365136936364566322, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6868956839) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454247 + ... + 469124.
It is an arithmetic number, because the mean of its divisors is an integer number (883667004).
Almost surely, 26868956869 is an apocalyptic number.
It is an amenable number.
6868956869 is a deficient number, since it is larger than the sum of its proper divisors (200379163).
6868956869 is a wasteful number, since it uses less digits than its factorization.
6868956869 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 923587.
The product of its digits is 268738560, while the sum is 71.
The square root of 6868956869 is about 82879.1702962813. The cubic root of 6868956869 is about 1900.9189339721.
The spelling of 6868956869 in words is "six billion, eight hundred sixty-eight million, nine hundred fifty-six thousand, eight hundred sixty-nine".
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