1985087131 is an odd 10-digits composite number following 1985087130
and preceding 1985087132 . In scientific notation, it is written as 1.985087131 × 10^9.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 1938922272 positive integers (up to 1985087131) that are relatively prime to 1985087131.
1985087131 has 4 divisors, whose sum is 2031251992
The reverse of 1985087131 is 1317805891
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 43
Digital Root 7
Name
one billion nine hundred eighty-five million eighty-seven thousand one hundred thirty-one
Scientific notation
1.985087131 × 10^9
Engineering notation
1.985087131 × 10^9
Prime Factorization
43 × 46164817
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1985087131
Product of the distinct prime numbers
The prime factorization of 1985087131 is 43 × 46164817.
Since it has a total of 2 prime factors.
10 , 4 , 13 , 19 , 380 , 691 , 6815 , 5050 , 13797 , 50320 , 295507 , 473438 , 843619 , 8045826 , 99330156 , 88874800 , 778599214 , 72038841 , 105071587 , 4264387923
n×2
3970174262
n×3
5955261393
n×4
7940348524
n×5
9925435655
n÷2
992543565.5
n÷3
661695710.33333
n÷3
496271782.75
n÷5
397017426.2
n2
3940570917661811161
n3
7.8223766174433E+27
n4
1.5528099157122E+37
n5
3.0824629805695E+46
2 √n
44554.316637112
3 √n
1256.78172794
4 √n
211.07893461241
5 √n
72.369557103358
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
-1985087130
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 1985087131 can be divided by 4 positive divisors.
The sum of these divisors (counting 1985087131) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110010100100000011010011011
3
Ternary
12010100021212121121
4
Quaternary
1312110200122123
5
Quinary
13031140242011
6
Senary
524551150111
8
Octal
16624403233
10
Decimal
1985087131
12
Duodecimal
474975337
16
Hexadecimal
7652069b
20
Vigesimal
1b06fhgb
36
Base36
wtvb17
md5
9e23203691184b667ae9d597495ffcc2
sha1
ff44e05a117f139a87b1f5de2d70c9a15f5e62a7
sha256
a4df4c4f244cb4176decf6b1063ddd3351df9e8bb0b0e8bf7ee7caf818be2fc5
sha512
6b313d672db294f03be239c71a06ca005ab9d3b63c8cebc4fb2593be05e6e2a7832efdfbb5c0437bad471bc62e27e02c34ec7f3085cd6948a3bdfcc10d9639f5
ripemd-160
a7f3271c977335e98a6ed0a8088cd1f1a2578973
Diameter
3970174262
Circumference
12472670294.97
Area
1.2379668645876E+19
Volume
3.2766294553297E+28
Surface area
4.9518674583504E+19
Circumference
12472670294.97
Perimeter
7940348524
Area
3940570917661811161
Diagonal
2807337143.1525
Surface area
2.3643425505971E+19
Volume
7.8223766174433E+27
Space diagonal
3438271768.3431
Perimeter
5955261393
Area
1.7063172600546E+18
Altitude
1719135884.1716
Surface area
1.7063172600546E+18
Volume
9.2187592519821E+26
Height
935779047.7175