1661595991 is an odd 10-digits composite number following 1661595990
and preceding 1661595992 . In scientific notation, it is written as 1.661595991 × 10^9.
The sum of its digits is 52. It has a total of 3 prime factors and 8 positive divisors.
There are 1498646520 positive integers (up to 1661595991) that are relatively prime to 1661595991.
1661595991 has 8 divisors, whose sum is 1826924544
The reverse of 1661595991 is 1995951661
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 52
Digital Root 7
Name
one billion six hundred sixty-one million five hundred ninety-five thousand nine hundred ninety-one
Scientific notation
1.661595991 × 10^9
Engineering notation
1.661595991 × 10^9
Prime Factorization
11 × 127 × 1189403
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1661595991
Product of the distinct prime numbers
The prime factorization of 1661595991 is 11 × 127 × 1189403.
Since it has a total of 3 prime factors.
9 , 5 , 51 , 39 , 104 , 648 , 8934 , 5562 , 95025 , 65942 , 725242 , 351272 , 8614931 , 6248610 , 43172579 , 39926928 , 251804437 , 978625980 , 2858403493 , 4156108441
n×2
3323191982
n×3
4984787973
n×4
6646383964
n×5
8307979955
n÷2
830797995.5
n÷3
553865330.33333
n÷3
415398997.75
n÷5
332319198.2
n2
2760901237307272081
n3
4.5875024274567E+27
n4
7.6225756421648E+36
n5
1.2665641128115E+46
2 √n
40762.678898718
3 √n
1184.4274898902
4 √n
201.89769413918
5 √n
69.840137726457
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1661595990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1661595991 can be divided by 8 positive divisors.
The sum of these divisors (counting 1661595991) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100011000010011111000101010111
3
Ternary
11021210120211012021
4
Quaternary
1203002133011113
5
Quinary
11400332032431
6
Senary
432513434011
8
Octal
14302370527
10
Decimal
1661595991
12
Duodecimal
3a456b907
16
Hexadecimal
6309f157
20
Vigesimal
15j4j9jb
36
Base36
rh9ro7
md5
9775668ca2c65eacbc69f395c84b8078
sha1
7722e2acb1d8533657082af11257b93f43848332
sha256
48d5370166e350660feee5a3ff1fb78c68129cf1bfd9e7c97f752f6f71fc2a7a
sha512
e5e1c0d9495c7a66b2fd25e8a7c77f0fedf7f54eb417dffca2c20a39a60e8ed1f36e7b4a2ac209abc0f4f0d850fc5d3de3785c9ff39441d074f3a53255f7abcc
ripemd-160
b70af465cea8d74bdee3d41a37dc0f6c74f1f223
Diameter
3323191982
Circumference
10440115517.12
Area
8.6736270444115E+18
Volume
1.9216085232564E+28
Surface area
3.4694508177646E+19
Circumference
10440115517.12
Perimeter
6646383964
Area
2760901237307272081
Diagonal
2349851585.657
Surface area
1.6565407423844E+19
Volume
4.5875024274567E+27
Space diagonal
2877968678.0648
Perimeter
4984787973
Area
1.195505304424E+18
Altitude
1438984339.0324
Surface area
1.195505304424E+18
Volume
5.4064234586073E+26
Height
783283861.88565