20138985 (number)

20138985 is an odd 8-digits composite number following 20138984 and preceding 20138986. In scientific notation, it is written as 2.0138985 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 10692000 positive integers (up to 20138985) that are relatively prime to 20138985.

Interesting facts

Basic properties

Name

Name twenty million one hundred thirty-eight thousand nine hundred eighty-five

Notation

Scientific notation 2.0138985 × 10^7
Engineering notation 2.0138985 × 10^6

Prime Factorization of 20138985

Prime Factorization 3 × 5 × 3 × 251 × 1783

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 6712995
Product of the distinct prime numbers

The prime factorization of 20138985 is 3 × 5 × 3 × 251 × 1783. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 5, 30, 67, 68, 611, 816, 3326, 34302, 60785, 441527, 607878, 4447438, 4239709, 87814313, 79788852, 140012264, 527848064, 9922549655, 5467988182

Basic calculations (n = 20138985)

Multiplication

n×y
n×2 40277970
n×3 60416955
n×4 80555940
n×5 100694925

Division

n÷y
n÷2 10069492.5
n÷3 6712995
n÷3 5034746.25
n÷5 4027797

Exponentiation

ny
n2 405578716830225
n3 8.1679436945631E+21
n4 1.6449409554565E+29
n5 3.3127441227824E+36

Nth Root

y√n
2√n 4487.6480476971
3√n 272.06908297895
4√n 66.989910043955
5√n 28.893989836418

Divisors of 20138985

1, 3, 5, 9, 15, 45, 251, 753, 1255, 1783, 2259, 3765, 5349, 8915, 11295, 16047, 26745, 80235, 447533, 1342599, 2237665, 4027797, 6712995, 20138985

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20138984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20138985 can be divided by 24 positive divisors. The sum of these divisors (counting 20138985) is 1, the average is 0.041666666666667.

Base conversion 20138985

Base System Value
2 Binary 1001100110100101111101001
3 Ternary 1101220011111100
4 Quaternary 1030310233221
5 Quinary 20123421420
6 Senary 1555352013
8 Octal 114645751
10 Decimal 20138985
12 Duodecimal 68b2609
16 Hexadecimal 1334be9
20 Vigesimal 65h795
36 Base36 bznc9

Cryptographic Hash Functions

md5 a0bb87f0686a01768f09a3488f4d6aab
sha1 7d1e4e1e4628287730c8f2076332931f70ee7c99
sha256 2c6ffdefcec18ba2870b9bfab0026e6c31ca20020df4d81b371311430dc20e4e
sha512 6620113e63f7cf9ee2dffbc51be0be8f8eb7f1de15a481c0a570dfa131ed0386b6c736c6dc1b8b5be33869b79ab6da7a449436a829dc9ef2401775bc7b33ed00
ripemd-160 75ce2942f4795bc04a0016dc01f96457fe49508f

20138985 as geometric shapes

Circle

Radius = n
Diameter 40277970
Circumference 126536974.65351
Area 1.2741631172462E+15

Sphere

Radius = n
Volume 3.4213802541033E+22
Surface area 5.0966524689848E+15
Circumference 126536974.65351

Square

Length = n
Perimeter 80555940
Area 405578716830225
Diagonal 28480825.719428

Cube

Length = n
Surface area 2433472300981350
Volume 8.1679436945631E+21
Space diagonal 34881745.232868

Equilateral Triangle

Length = n
Perimeter 60416955
Area 1.7562073600464E+14
Altitude 17440872.616434

Triangular Pyramid

Length = n
Surface area 1.7562073600464E+14
Volume 9.6260139579592E+20
Height 9493608.5731428