19939985 is an odd 8-digits composite number following 19939984
and preceding 19939986 . In scientific notation, it is written as 1.9939985 × 10^7.
The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors.
There are 14042880 positive integers (up to 19939985) that are relatively prime to 19939985.
19939985 has 8 divisors, whose sum is 20443104
The reverse of 19939985 is 58993991
Previous prime number is 2867
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
nineteen million nine hundred thirty-nine thousand nine hundred eighty-five
Scientific notation
1.9939985 × 10^7
Engineering notation
1.9939985 × 10^6
Prime Factorization
65 × 2867 × 107
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19939985
Product of the distinct prime numbers
The prime factorization of 19939985 is 65 × 2867 × 107.
Since it has a total of 3 prime factors.
6 , 5 , 86 , 91 , 154 , 957 , 2552 , 3586 , 60820 , 52524 , 206023 , 90173 , 3712945 , 3832941 , 62104495 , 7686856 , 807151637 , 881295728 , 8428280728 , 3665568880
n×2
39879970
n×3
59819955
n×4
79759940
n×5
99699925
n÷2
9969992.5
n÷3
6646661.6666667
n÷3
4984996.25
n÷5
3987997
n2
397603001800225
n3
7.9281978918515E+21
n4
1.5808814704055E+29
n5
3.1522752806664E+36
2 √n
4465.4210327807
3 √n
271.16998000624
4 √n
66.823805883687
5 √n
28.836660568405
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
-19939984
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 19939985 can be divided by 8 positive divisors.
The sum of these divisors (counting 19939985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100000100001010010001
3
Ternary
1101112001111222
4
Quaternary
1030010022101
5
Quinary
20101034420
6
Senary
1551214425
8
Octal
114041221
10
Decimal
19939985
12
Duodecimal
6817415
16
Hexadecimal
1304291
20
Vigesimal
64c9j5
36
Base36
bvdsh
md5
7042a4957d8267d0c67e93c762fecadb
sha1
e7db9d3b1cdb15a505573cf5ffeddd4fe401da3b
sha256
b12372e6bf42ab34e8ca9d78b267c21b3d83e7808ad57edd87174d8626c274bd
sha512
bcc2fb8773f52c7748f7c944d01efaf236c04c1803dea9046000cea1a8aa225ceea1ea23af211195ba7fc97d43275fed4e1b780f25cf5bfe975a084c2460865d
ripemd-160
664f6ffa9ea5cb38493cabef9d55c2df73be9016
Diameter
39879970
Circumference
125286620.77738
Area
1.2491066695008E+15
Volume
3.3209557670996E+22
Surface area
4.9964266780033E+15
Circumference
125286620.77738
Perimeter
79759940
Area
397603001800225
Diagonal
28199397.220516
Surface area
2385618010801350
Volume
7.9281978918515E+21
Space diagonal
34537067.122161
Perimeter
59819955
Area
1.7216715008997E+14
Altitude
17268533.561081
Surface area
1.7216715008997E+14
Volume
9.3434708198618E+20
Height
9399799.0735054