2691 is an odd 4-digits composite number following 2690
and preceding 2692 . In scientific notation, it is written as 2.691 × 10^3.
The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors.
There are 1584 positive integers (up to 2691) that are relatively prime to 2691.
2691 has 12 divisors, whose sum is 4368
The reverse of 2691 is 1962
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 4
Sum of Digits 18
Digital Root 9
Name
two thousand six hundred ninety-one
Scientific notation
2.691 × 10^3
Engineering notation
2.691 × 10^3
Prime Factorization
13 × 3 × 3 × 23
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
897
Product of the distinct prime numbers
The prime factorization of 2691 is 13 × 3 × 3 × 23.
Since it has a total of 4 prime factors.
3 , 2 , 59 , 88 , 699 , 107 , 6910 , 7854 , 62278 , 34325 , 352807 , 376891 , 4433245 , 183850 , 34625292 , 17773604 , 13143111 , 518782175 , 4933120464 , 3216690242
n×2
5382
n×3
8073
n×4
10764
n×5
13455
n÷2
1345.5
n÷3
897
n÷3
672.75
n÷5
538.2
n2
7241481
n3
19486825371
n4
52439047073361
n5
141113475674414451
2 √n
51.874849397372
3 √n
13.909277315084
4 √n
7.2024196904493
5 √n
4.852692134098
1 , 3 , 9 , 13 , 23 , 39 , 69 , 117 , 207 , 299 , 897 , 2691
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2690
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2691 can be divided by 12 positive divisors.
The sum of these divisors (counting 2691) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101010000011
3
Ternary
10200200
4
Quaternary
222003
5
Quinary
41231
6
Senary
20243
8
Octal
5203
10
Decimal
2691
12
Duodecimal
1683
16
Hexadecimal
a83
20
Vigesimal
6eb
36
Base36
22r
md5
110eec23201d80e40d0c4a48954e2ff5
sha1
62928c5d98429dcdd38d5f9ef2227c74fadf11e7
sha256
e2a424edff99af60a8d9e6b9943562d6b148a49603445aaf4371d722e12c7f28
sha512
a27c66ad86f7e9a4925a2173e89348ba9ddc3af10c2b6ece4d7503239c2781911f8beeb47d7ade054e04baf8c0356a8e006efdb60050048d615e4f359ab31986
ripemd-160
ba9213cab7574d8aabf57841d3202b08e1fac68c
Diameter
5382
Circumference
16908.05166162
Area
22749783.51071
Volume
81626223236.428
Surface area
90999134.04284
Circumference
16908.05166162
Perimeter
10764
Area
7241481
Diagonal
3805.648696346
Surface area
43448886
Volume
19486825371
Space diagonal
4660.9487231678
Perimeter
8073
Area
3135653.2535112
Altitude
2330.4743615839
Surface area
3135653.2535112
Volume
2296544393.9387
Height
1268.5495654487