6891 is an odd 4-digits composite number following 6890
and preceding 6892 . In scientific notation, it is written as 6.891 × 10^3.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 4592 positive integers (up to 6891) that are relatively prime to 6891.
6891 has 4 divisors, whose sum is 9192
The reverse of 6891 is 1986
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 4
Sum of Digits 24
Digital Root 6
Name
six thousand eight hundred ninety-one
Scientific notation
6.891 × 10^3
Engineering notation
6.891 × 10^3
Prime Factorization
3 × 2297
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
6891
Product of the distinct prime numbers
The prime factorization of 6891 is 3 × 2297.
Since it has a total of 2 prime factors.
5 , 3 , 82 , 70 , 162 , 223 , 2838 , 7600 , 38550 , 91847 , 294611 , 719688 , 7790005 , 3939557 , 89116525 , 96608572 , 5253591 , 230262273 , 1402587090 , 4628131910
n×2
13782
n×3
20673
n×4
27564
n×5
34455
n÷2
3445.5
n÷3
2297
n÷3
1722.75
n÷5
1378.2
n2
47485881
n3
327225205971
n4
2254908894346161
n5
1.5538577190939E+19
2 √n
83.012047318446
3 √n
19.029501721407
4 √n
9.1110947376507
5 √n
5.8567468141789
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-6890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 6891 can be divided by 4 positive divisors.
The sum of these divisors (counting 6891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011101011
3
Ternary
100110020
4
Quaternary
1223223
5
Quinary
210031
6
Senary
51523
8
Octal
15353
10
Decimal
6891
12
Duodecimal
3ba3
16
Hexadecimal
1aeb
20
Vigesimal
h4b
36
Base36
5bf
md5
83da7c539e1ab4e759623c38d8737e9e
sha1
719a4259ce7449d0e18f62063ac07e550ccad238
sha256
f548d6697dd29f405ebb371d243002eb9babde9a3602aedbe5bc0d9ed1c6ff34
sha512
092673c1429aa0000fcdcb610f32979427eb39da5981e243392b3f7d07b40eb8ce29045f3be0ef8563dddba88e226a25cf350aa9125b38d4aa9499f52ff1ac08
ripemd-160
dba029480a2822981fe67581b1880e6afa0a8110
Diameter
13782
Circumference
43297.429951775
Area
149181294.89884
Volume
1370677737530.5
Surface area
596725179.59536
Circumference
43297.429951775
Perimeter
27564
Area
47485881
Diagonal
9745.345658313
Surface area
284915286
Volume
327225205971
Space diagonal
11935.562114957
Perimeter
20673
Area
20561989.633542
Altitude
5967.7810574786
Surface area
20561989.633542
Volume
38563860352.876
Height
3248.448552771