20797985 (number)

20797985 is an odd 8-digits composite number following 20797984 and preceding 20797986. In scientific notation, it is written as 2.0797985 × 10^7. The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors. There are 15163200 positive integers (up to 20797985) that are relatively prime to 20797985.

Interesting facts

Basic properties

Name

Name twenty million seven hundred ninety-seven thousand nine hundred eighty-five

Notation

Scientific notation 2.0797985 × 10^7
Engineering notation 2.0797985 × 10^6

Prime Factorization of 20797985

Prime Factorization 5 × 169 × 163 × 151

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20797985
Product of the distinct prime numbers

The prime factorization of 20797985 is 5 × 169 × 163 × 151. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 2, 68, 2, 193, 225, 1981, 8441, 30745, 54, 747873, 793209, 6472968, 5749710, 86789154, 59130875, 794432339, 246746864, 2512534059, 7120149529

Basic calculations (n = 20797985)

Multiplication

n×y
n×2 41595970
n×3 62393955
n×4 83191940
n×5 103989925

Division

n÷y
n÷2 10398992.5
n÷3 6932661.6666667
n÷3 5199496.25
n÷5 4159597

Exponentiation

ny
n2 432556180060225
n3 8.9962969445499E+21
n4 1.8710484890829E+29
n5 3.891403841022E+36

Nth Root

y√n
2√n 4560.4807860575
3√n 275.00489247494
4√n 67.531331884226
5√n 29.080659551489

Divisors of 20797985

1, 5, 151, 163, 169, 755, 815, 845, 24613, 25519, 27547, 123065, 127595, 137735, 4159597, 20797985

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 -20797984
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 20797985 can be divided by 16 positive divisors. The sum of these divisors (counting 20797985) is 1, the average is 0.0625.

Base conversion 20797985

Base System Value
2 Binary 1001111010101101000100001
3 Ternary 1110010122110202
4 Quaternary 1033111220201
5 Quinary 20311013420
6 Senary 2021434545
8 Octal 117255041
10 Decimal 20797985
12 Duodecimal 6b6ba55
16 Hexadecimal 13d5a21
20 Vigesimal 69jej5
36 Base36 cdrtt

Cryptographic Hash Functions

md5 fbdbf3eecf914068848dbc8adb0fb002
sha1 e56267dfb3ecdce0b8d6e97c57e6e494d71c0cef
sha256 c738ceaf7efd439264368a12307bf65cf33f7ef4fafff2e8ea2ca84ffe15b784
sha512 bd96eca563019d5b9736da591c0940bf7532c14234bc9f360940626b6337857289494bbe167469dcaa6e7ad8f499b8a7d503010cc6e114a560691ad7877e8b34
ripemd-160 db62d353e384fb3e57375197eeaceb1bb7cc4c97

20797985 as geometric shapes

Circle

Radius = n
Diameter 41595970
Circumference 130677593.77094
Area 1.3589153175421E+15

Sphere

Radius = n
Volume 3.768360052068E+22
Surface area 5.4356612701683E+15
Circumference 130677593.77094

Square

Length = n
Perimeter 83191940
Area 432556180060225
Diagonal 29412792.457032

Cube

Length = n
Surface area 2595337080361350
Volume 8.9962969445499E+21
Space diagonal 36023166.715055

Equilateral Triangle

Length = n
Perimeter 62393955
Area 1.8730232024806E+14
Altitude 18011583.357528

Triangular Pyramid

Length = n
Surface area 1.8730232024806E+14
Volume 1.0602237625098E+21
Height 9804264.1523441