19809985 (number)

19809985 is an odd 8-digits composite number following 19809984 and preceding 19809986. In scientific notation, it is written as 1.9809985 × 10^7. The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors. There are 14231808 positive integers (up to 19809985) that are relatively prime to 19809985.

Interesting facts

Basic properties

Name

Name nineteen million eight hundred nine thousand nine hundred eighty-five

Notation

Scientific notation 1.9809985 × 10^7
Engineering notation 1.9809985 × 10^6

Prime Factorization of 19809985

Prime Factorization 5 × 13 × 37 × 8237

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 19809985
Product of the distinct prime numbers

The prime factorization of 19809985 is 5 × 13 × 37 × 8237. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 19809985)

Multiplication

n×y
n×2 39619970
n×3 59429955
n×4 79239940
n×5 99049925

Division

n÷y
n÷2 9904992.5
n÷3 6603328.3333333
n÷3 4952496.25
n÷5 3961997

Exponentiation

ny
n2 392435505700225
n3 7.7741414813889E+21
n4 1.5400562613419E+29
n5 3.0508491436339E+36

Nth Root

y√n
2√n 4450.8409317791
3√n 270.57939137205
4√n 66.71462307305
5√n 28.798961639164

Divisors of 19809985

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 -19809984
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 19809985 can be divided by 16 positive divisors. The sum of these divisors (counting 19809985) is 1, the average is 0.0625.

Base conversion 19809985

Base System Value
2 Binary 1001011100100011011000001
3 Ternary 1101021110012011
4 Quaternary 1023210123001
5 Quinary 20032404420
6 Senary 1544332521
8 Octal 113443301
10 Decimal 19809985
12 Duodecimal 6774141
16 Hexadecimal 12e46c1
20 Vigesimal 63g4j5
36 Base36 bslhd

Cryptographic Hash Functions

md5 6c02fa668fe60157818bcc4ccb6cc14a
sha1 c7568fc2d56e8ae7a76be9a1680ed235c7e92ef1
sha256 63727bcef54ccd83cddfa28e8b8cf31e37d4cde8bab3b393f085ca6fce795acc
sha512 0a072b0bca682c89e7895e43964d7a44a824bb9d6066d2dd16c33d85cff284fd25a88588e5556611b3a9132a49760bb848524ef77ba9d57f78e59f90f866516c
ripemd-160 edcaabb6d2c8d15c406e3a9a46541c23652bc06b

19809985 as geometric shapes

Circle

Radius = n
Diameter 39619970
Circumference 124469806.68745
Area 1.2328725017156E+15

Sphere

Radius = n
Volume 3.2564247687865E+22
Surface area 4.9314900068625E+15
Circumference 124469806.68745

Square

Length = n
Perimeter 79239940
Area 392435505700225
Diagonal 28015549.457408

Cube

Length = n
Surface area 2354613034201350
Volume 7.7741414813889E+21
Space diagonal 34311900.517177

Equilateral Triangle

Length = n
Perimeter 59429955
Area 1.6992955864169E+14
Altitude 17155950.258589

Triangular Pyramid

Length = n
Surface area 1.6992955864169E+14
Volume 9.1619135989895E+20
Height 9338516.4858025