1985655209 is an odd 10-digits composite number following 1985655208
and preceding 1985655210 . In scientific notation, it is written as 1.985655209 × 10^9.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 1931988816 positive integers (up to 1985655209) that are relatively prime to 1985655209.
1985655209 has 4 divisors, whose sum is 2039321604
The reverse of 1985655209 is 9025565891
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 50
Digital Root 5
Name
one billion nine hundred eighty-five million six hundred fifty-five thousand two hundred nine
Scientific notation
1.985655209 × 10^9
Engineering notation
1.985655209 × 10^9
Prime Factorization
37 × 53666357
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1985655209
Product of the distinct prime numbers
The prime factorization of 1985655209 is 37 × 53666357.
Since it has a total of 2 prime factors.
8 , 2 , 99 , 88 , 992 , 941 , 424 , 7584 , 9105 , 43607 , 844095 , 843252 , 5813067 , 8774611 , 37709029 , 61255946 , 906418613 , 665515415 , 4564320414 , 2959788797
n×2
3971310418
n×3
5956965627
n×4
7942620836
n×5
9928276045
n÷2
992827604.5
n÷3
661885069.66667
n÷3
496413802.25
n÷5
397131041.8
n2
3942826609028833681
n3
7.8290941944019E+27
n4
1.5545881668866E+37
n5
3.0868760914281E+46
2 √n
44560.691298498
3 √n
1256.9016021
4 √n
211.09403425606
5 √n
72.373698669481
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
-1985655208
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 1985655209 can be divided by 4 positive divisors.
The sum of these divisors (counting 1985655209) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110010110101011000110101001
3
Ternary
12010101100201212112
4
Quaternary
1312112223012221
5
Quinary
13031311431314
6
Senary
525011252105
8
Octal
16626530651
10
Decimal
1985655209
12
Duodecimal
474baa035
16
Hexadecimal
765ab1a9
20
Vigesimal
1b0a6i09
36
Base36
wu7hd5
md5
aaa882ef8de820f7448913cf8f972010
sha1
ed4d83d526fb913b96c359430ef06c92f8bd1a12
sha256
2ef9c06855abfb67ffd1d61aa085aed4dedbd682079f706f308786f4643241dc
sha512
71e6f21f9811237db4f28e926c9fb1247b8cbd2a206c70ce6a5d143f50c142baf9fdf9b48ea3e36d1068350a95c43d92f0e88e14744d05c9ba2687d307750eff
ripemd-160
255da0758895f46871bdd0698803f5e4c214c194
Diameter
3971310418
Circumference
12476239634.313
Area
1.2386755109303E+19
Volume
3.2794433073861E+28
Surface area
4.9547020437213E+19
Circumference
12476239634.313
Perimeter
7942620836
Area
3942826609028833681
Diagonal
2808140526.7646
Surface area
2.3656959654173E+19
Volume
7.8290941944019E+27
Space diagonal
3439255708.3018
Perimeter
5956965627
Area
1.7072940030681E+18
Altitude
1719627854.1509
Surface area
1.7072940030681E+18
Volume
9.2266759923497E+26
Height
936046842.25486