1991566 is an even 7-digits composite number following 1991565
and preceding 1991567 . In scientific notation, it is written as 1.991566 × 10^6.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 995782 positive integers (up to 1991566) that are relatively prime to 1991566.
1991566 has 4 divisors, whose sum is 2987352
The reverse of 1991566 is 6651991
Previous prime number is 2
Is Prime? no
Number parity even
Number length 7
Sum of Digits 37
Digital Root 1
Name
one million nine hundred ninety-one thousand five hundred sixty-six
Scientific notation
1.991566 × 10^6
Engineering notation
1.991566 × 10^6
Prime Factorization
2 × 995783
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1991566
Product of the distinct prime numbers
The prime factorization of 1991566 is 2 × 995783.
Since it has a total of 2 prime factors.
2 , 5 , 61 , 47 , 180 , 355 , 2078 , 9736 , 2392 , 8820 , 384312 , 395953 , 9838827 , 1544306 , 65823853 , 42672959 , 102710523 , 716789931 , 6146149051 , 378736009
n×2
3983132
n×3
5974698
n×4
7966264
n×5
9957830
n÷2
995783
n÷3
663855.33333333
n÷3
497891.5
n÷5
398313.2
n2
3966335132356
n3
7899218194205709496
n4
1.5731814382161E+25
n5
3.1330946641824E+31
2 √n
1411.2285427952
3 √n
125.81475255472
4 √n
37.566321922638
5 √n
18.190261425842
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
-1991565
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 1991566 can be divided by 4 positive divisors.
The sum of these divisors (counting 1991566) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100110001110001110
3
Ternary
10202011220201
4
Quaternary
13212032032
5
Quinary
1002212231
6
Senary
110404114
8
Octal
7461616
10
Decimal
1991566
12
Duodecimal
80063a
16
Hexadecimal
1e638e
20
Vigesimal
c8ii6
36
Base36
16opa
md5
e74fbf2aeb00538da3bed57f35e777bc
sha1
555b74daba683bee0dc724279d2a5e4d97ef1b22
sha256
b3134d07cbc8657304e6338274241b61b8b38590a481d79b518048201b699cb7
sha512
de3164dc26ea9a6f99156c30116ca1496e254cb91a02c0c2dbf1ae94003359b3e76e6d41c7cd5c0d1037c4e180fd0017a0e36ef35a813e6a2f06fa6cd8e58e00
ripemd-160
404c6e1346342219a30f45252ed17fd1da9c0545
Diameter
3983132
Circumference
12513378.229478
Area
12460609313485
Volume
3.3088167797359E+19
Surface area
49842437253939
Circumference
12513378.229478
Perimeter
7966264
Area
3966335132356
Diagonal
2816499.6475611
Surface area
23798010794136
Volume
7899218194205709496
Space diagonal
3449493.4986267
Perimeter
5974698
Area
1717473492271.5
Altitude
1724746.7493134
Surface area
1717473492271.5
Volume
9.3093179186584E+17
Height
938833.21585371