21491926 (number)

21491926 is an even 8-digits composite number following 21491925 and preceding 21491927. In scientific notation, it is written as 2.1491926 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 10137960 positive integers (up to 21491926) that are relatively prime to 21491926.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand nine hundred twenty-six

Notation

Scientific notation 2.1491926 × 10^7
Engineering notation 2.1491926 × 10^6

Prime Factorization of 21491926

Prime Factorization 2 × 19 × 271 × 2087

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21491926
Product of the distinct prime numbers

The prime factorization of 21491926 is 2 × 19 × 271 × 2087. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 7, 20, 31, 410, 580, 2279, 6995, 89235, 39416, 926288, 62213, 5016895, 1802262, 84096092, 25793083, 391361130, 68690257, 8472299345, 1440310044

Basic calculations (n = 21491926)

Multiplication

n×y
n×2 42983852
n×3 64475778
n×4 85967704
n×5 107459630

Division

n÷y
n÷2 10745963
n÷3 7163975.3333333
n÷3 5372981.5
n÷5 4298385.2

Exponentiation

ny
n2 461902883189476
n3 9.9271825846949E+21
n4 2.1335427349875E+29
n5 4.5853942578189E+36

Nth Root

y√n
2√n 4635.9385241826
3√n 278.03007627948
4√n 68.087726678033
5√n 29.272180018077

Divisors of 21491926

1, 2, 19, 38, 271, 542, 2087, 4174, 5149, 10298, 39653, 79306, 565577, 1131154, 10745963, 21491926

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 -21491925
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 21491926 can be divided by 16 positive divisors. The sum of these divisors (counting 21491926) is 1, the average is 0.0625.

Base conversion 21491926

Base System Value
2 Binary 1010001111111000011010110
3 Ternary 1111102220101021
4 Quaternary 1101333003112
5 Quinary 21000220201
6 Senary 2044351354
8 Octal 121770326
10 Decimal 21491926
12 Duodecimal 724555a
16 Hexadecimal 147f0d6
20 Vigesimal 6e69g6
36 Base36 csn9y

Cryptographic Hash Functions

md5 e392373f7e4afa0c6ae1f856535bfe07
sha1 c869b15a29eb2ba87f2a08091c9fc710b38683ef
sha256 9def9ad6a3882e920bf5b0c1ea0887764e2662a9b3db90e7906df25cd886d185
sha512 414b60cf2404a533ad02816f81249936f25b4c200687490e9460468a481f9faad73cd62de9d576bd58f598c6e7ece194c3830470e35c9bdfccf5a3a67b5fe050
ripemd-160 705fba9f6dd5cc19f56659e8292e27bb3d2fd3c2

21491926 as geometric shapes

Circle

Radius = n
Diameter 42983852
Circumference 135037753.66619
Area 1.4511107045E+15

Sphere

Radius = n
Volume 4.1582885171896E+22
Surface area 5.804442818E+15
Circumference 135037753.66619

Square

Length = n
Perimeter 85967704
Area 461902883189476
Diagonal 30394173.230719

Cube

Length = n
Surface area 2771417299136856
Volume 9.9271825846949E+21
Space diagonal 37225107.784511

Equilateral Triangle

Length = n
Perimeter 64475778
Area 2.0000981546168E+14
Altitude 18612553.892255

Triangular Pyramid

Length = n
Surface area 2.0000981546168E+14
Volume 1.1699296872858E+21
Height 10131391.076906