1981009186 is an even 10-digits composite number following 1981009185
and preceding 1981009187 . In scientific notation, it is written as 1.981009186 × 10^9.
The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors.
There are 912891024 positive integers (up to 1981009186) that are relatively prime to 1981009186.
1981009186 has 16 divisors, whose sum is 3205065024
The reverse of 1981009186 is 6819001891
Previous prime number is 647
Is Prime? no
Number parity even
Number length 10
Sum of Digits 43
Digital Root 7
Name
one billion nine hundred eighty-one million nine thousand one hundred eighty-six
Scientific notation
1.981009186 × 10^9
Engineering notation
1.981009186 × 10^9
Prime Factorization
2 × 13 × 647 × 117763
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1981009186
Product of the distinct prime numbers
The prime factorization of 1981009186 is 2 × 13 × 647 × 117763.
Since it has a total of 4 prime factors.
2 , 7 , 97 , 29 , 736 , 877 , 3185 , 1520 , 9924 , 26823 , 719492 , 201795 , 6521169 , 6193719 , 54533089 , 5213070 , 219494611 , 795684665 , 16682886 , 6410217515
n×2
3962018372
n×3
5943027558
n×4
7924036744
n×5
9905045930
n÷2
990504593
n÷3
660336395.33333
n÷3
495252296.5
n÷5
396201837.2
n2
3924397395016382596
n3
7.7742672890419E+27
n4
1.5400894914011E+37
n5
3.0509314297277E+46
2 √n
44508.529362359
3 √n
1255.9205398397
4 √n
210.9704466563
5 √n
72.339799026511
1 , 2 , 13 , 26 , 647 , 1294 , 8411 , 16822 , 117763 , 235526 , 1530919 , 3061838 , 76192661 , 152385322 , 990504593 , 1981009186
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1981009185
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981009186 can be divided by 16 positive divisors.
The sum of these divisors (counting 1981009186) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110000100111100110100100010
3
Ternary
12010001121200201121
4
Quaternary
1312010330310202
5
Quinary
13024114243221
6
Senary
524323522454
8
Octal
16604746442
10
Decimal
1981009186
12
Duodecimal
47352942a
16
Hexadecimal
7613cd22
20
Vigesimal
1aj162j6
36
Base36
wrfwgy
md5
01a1796904769cea26855e268c551e18
sha1
dc78d2693953d8e4c7acdaef00c7abe7be1cb915
sha256
b00cc9f5c3c033bab0c5d09bdc4c5bef5824a37ac9441d57b04335df0f4ae1b1
sha512
4199fd29fd0a8cb1987f8980967db9f5a4079ed9b94a03e0c622ac18767a512702dd3ccffd9b9e584f8623c2f7dfe5fe3ee4811ef6da263d80430ffdcb4734eb
ripemd-160
9e00b6b60bb2c1219362c89a8511d657955bed8c
Diameter
3962018372
Circumference
12447047810.863
Area
1.232885802595E+19
Volume
3.256477466973E+28
Surface area
4.9315432103802E+19
Circumference
12447047810.863
Perimeter
7924036744
Area
3924397395016382596
Diagonal
2801570058.0269
Surface area
2.3546384370098E+19
Volume
7.7742672890419E+27
Space diagonal
3431208560.4127
Perimeter
5943027558
Area
1.6993139193148E+18
Altitude
1715604280.2063
Surface area
1.6993139193148E+18
Volume
9.1620618647305E+26
Height
933856686.00896