21000791 (number)

21000791 is an odd 8-digits composite number following 21000790 and preceding 21000792. In scientific notation, it is written as 2.1000791 × 10^7. The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors. There are 17611776 positive integers (up to 21000791) that are relatively prime to 21000791.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred ninety-one

Notation

Scientific notation 2.1000791 × 10^7
Engineering notation 2.1000791 × 10^6

Prime Factorization of 21000791

Prime Factorization 7 × 97 × 197 × 157

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21000791
Product of the distinct prime numbers

The prime factorization of 21000791 is 7 × 97 × 197 × 157. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 9, 66, 5, 464, 563, 7861, 1874, 36566, 17896, 245346, 84303, 9983292, 3782641, 27269350, 41888685, 653029926, 424930643, 5040534898, 1723230665

Basic calculations (n = 21000791)

Multiplication

n×y
n×2 42001582
n×3 63002373
n×4 84003164
n×5 105003955

Division

n÷y
n÷2 10500395.5
n÷3 7000263.6666667
n÷3 5250197.75
n÷5 4200158.2

Exponentiation

ny
n2 441033222625681
n3 9.2620465324184E+21
n4 1.9451030345959E+29
n5 4.0848702303015E+36

Nth Root

y√n
2√n 4582.6619993187
3√n 275.8958815772
4√n 67.695361726774
5√n 29.137154080695

Divisors of 21000791

1, 7, 97, 157, 197, 679, 1099, 1379, 15229, 19109, 30929, 106603, 133763, 216503, 3000113, 21000791

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 -21000790
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 21000791 can be divided by 16 positive divisors. The sum of these divisors (counting 21000791) is 1, the average is 0.0625.

Base conversion 21000791

Base System Value
2 Binary 1010000000111001001010111
3 Ternary 1110111221200002
4 Quaternary 1100013021113
5 Quinary 20334011131
6 Senary 2030041515
8 Octal 120071127
10 Decimal 21000791
12 Duodecimal 704929b
16 Hexadecimal 1407257
20 Vigesimal 6b51jb
36 Base36 ci4bb

Cryptographic Hash Functions

md5 9f45344bef9405062e5efec4ccc53747
sha1 2cd8cd9aa7fd4fed1aaa4292c3a9dbc8903df80a
sha256 640487610a4d12a27c0022ce9155469e8dcb7f98f3a8a6d32dd08846ffe43140
sha512 1056e61266745b581be00301b742535106c26b2042317ad34b649c87bec027c2b1769cc2fc28ecd8ca31582243600463655769b00c717574a1b9b58538d37a4b
ripemd-160 03153de6fa8aa620ae5143f1a46b04541d52c63d

21000791 as geometric shapes

Circle

Radius = n
Diameter 42001582
Circumference 131951861.45035
Area 1.3855467321899E+15

Sphere

Radius = n
Volume 3.879676979127E+22
Surface area 5.5421869287595E+15
Circumference 131951861.45035

Square

Length = n
Perimeter 84003164
Area 441033222625681
Diagonal 29699603.452763

Cube

Length = n
Surface area 2646199335754086
Volume 9.2620465324184E+21
Space diagonal 36374437.011135

Equilateral Triangle

Length = n
Perimeter 63002373
Area 1.9097298735338E+14
Altitude 18187218.505568

Triangular Pyramid

Length = n
Surface area 1.9097298735338E+14
Volume 1.0915426517897E+21
Height 9899867.8175876