21492891 (number)

21492891 is an odd 8-digits composite number following 21492890 and preceding 21492892. In scientific notation, it is written as 2.1492891 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 12281544 positive integers (up to 21492891) that are relatively prime to 21492891.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-two thousand eight hundred ninety-one

Notation

Scientific notation 2.1492891 × 10^7
Engineering notation 2.1492891 × 10^6

Prime Factorization of 21492891

Prime Factorization 3 × 9 × 7 × 113719

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21492891
Product of the distinct prime numbers

The prime factorization of 21492891 is 3 × 9 × 7 × 113719. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 6, 83, 43, 601, 6, 5714, 4583, 10248, 29932, 983437, 976467, 2497868, 5895406, 20909197, 42848268, 286463306, 403883306, 4732511315, 6546453578

Basic calculations (n = 21492891)

Multiplication

n×y
n×2 42985782
n×3 64478673
n×4 85971564
n×5 107464455

Division

n÷y
n÷2 10746445.5
n÷3 7164297
n÷3 5373222.75
n÷5 4298578.2

Exponentiation

ny
n2 461944363537881
n3 9.928519853584E+21
n4 2.1339259500442E+29
n5 4.5864237846371E+36

Nth Root

y√n
2√n 4636.0426011848
3√n 278.03423745468
4√n 68.088490959815
5√n 29.272442880944

Divisors of 21492891

1, 3, 7, 9, 21, 27, 63, 189, 113719, 341157, 796033, 1023471, 2388099, 3070413, 7164297, 21492891

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 -21492890
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 21492891 can be divided by 16 positive divisors. The sum of these divisors (counting 21492891) is 1, the average is 0.0625.

Base conversion 21492891

Base System Value
2 Binary 1010001111111010010011011
3 Ternary 1111102221201000
4 Quaternary 1101333102123
5 Quinary 21000233031
6 Senary 2044400043
8 Octal 121772233
10 Decimal 21492891
12 Duodecimal 7246023
16 Hexadecimal 147f49b
20 Vigesimal 6e6c4b
36 Base36 cso0r

Cryptographic Hash Functions

md5 426674545287818b74dc618b8d020066
sha1 c7ec79406a04070609c30ecfbdbbb6593a770c87
sha256 cc91bec88449746dba8278bf25025f0db1263904a295a230b6dd0cd3f2194037
sha512 bf80c214dd5f07856e87401b76f8e8ab3af1c3e19709c206db149389909fb96b6bc82846b6b842364ccbc0542ace44f88089ec7d16cca74c07884ec0b148ba37
ripemd-160 bd108fb8d6b0575b2e18d6b0e1972f013eefb26d

21492891 as geometric shapes

Circle

Radius = n
Diameter 42985782
Circumference 135043816.94001
Area 1.4512410188578E+15

Sphere

Radius = n
Volume 4.158848671072E+22
Surface area 5.8049640754313E+15
Circumference 135043816.94001

Square

Length = n
Perimeter 85971564
Area 461944363537881
Diagonal 30395537.946807

Cube

Length = n
Surface area 2771666181227286
Volume 9.928519853584E+21
Space diagonal 37226779.21354

Equilateral Triangle

Length = n
Perimeter 64478673
Area 2.0002777697942E+14
Altitude 18613389.60677

Triangular Pyramid

Length = n
Surface area 2.0002777697942E+14
Volume 1.1700872859358E+21
Height 10131845.982269