21431440 (number)

21431440 is an even 8-digits composite number following 21431439 and preceding 21431441. In scientific notation, it is written as 2.1431440 × 10^7. The sum of its digits is 19. It has a total of 6 prime factors and 20 positive divisors. There are 8572544 positive integers (up to 21431440) that are relatively prime to 21431440.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred thirty-one thousand four hundred forty

Notation

Scientific notation 2.1431440 × 10^7
Engineering notation 2.1431440 × 10^6

Prime Factorization of 21431440

Prime Factorization 2 × 2 × 2 × 2 × 5 × 267893

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2678930
Product of the distinct prime numbers

The prime factorization of 21431440 is 2 × 2 × 2 × 2 × 5 × 267893. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 7, 73, 96, 312, 385, 2257, 3556, 6368, 25554, 377476, 190943, 9766800, 8095339, 33698440, 74050525, 703481306, 910132463, 6473103612, 2092012275

Basic calculations (n = 21431440)

Multiplication

n×y
n×2 42862880
n×3 64294320
n×4 85725760
n×5 107157200

Division

n÷y
n÷2 10715720
n÷3 7143813.3333333
n÷3 5357860
n÷5 4286288

Exponentiation

ny
n2 459306620473600
n3 9.8436022782827E+21
n4 2.1096257161088E+29
n5 4.5212316957243E+36

Nth Root

y√n
2√n 4629.4103296208
3√n 277.76900570817
4√n 68.039770205526
5√n 29.255684952475

Divisors of 21431440

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 267893, 535786, 1071572, 1339465, 2143144, 2678930, 4286288, 5357860, 10715720, 21431440

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21431439
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21431440 can be divided by 20 positive divisors. The sum of these divisors (counting 21431440) is 1, the average is 0.05.

Base conversion 21431440

Base System Value
2 Binary 1010001110000010010010000
3 Ternary 1111022211102001
4 Quaternary 1101300102100
5 Quinary 20441301230
6 Senary 2043203344
8 Octal 121602220
10 Decimal 21431440
12 Duodecimal 7216554
16 Hexadecimal 1470490
20 Vigesimal 6diic0
36 Base36 crcls

Cryptographic Hash Functions

md5 bab09fb2991246b95f165cb3383656fe
sha1 591222544db51243beac739724a5742a2c8ce665
sha256 819120263d80d910c7b5fb9563dfe0062bc2ea0cccff6e8531c62bbc4673b7b0
sha512 83e3b8b0d4e5792410bac91890a2708f65ec91b3233988a759088a8e07dbf2c2962d8d0d72c9691bee6c245caa4e0f80bb5c0e47d8d4c14f53286976f959a87b
ripemd-160 73f80fed83c5d9bcd25a05eb3ef563ab7169fd72

21431440 as geometric shapes

Circle

Radius = n
Diameter 42862880
Circumference 134657708.9197
Area 1.442954304625E+15

Sphere

Radius = n
Volume 4.1232784803084E+22
Surface area 5.7718172185001E+15
Circumference 134657708.9197

Square

Length = n
Perimeter 85725760
Area 459306620473600
Diagonal 30308633.109185

Cube

Length = n
Surface area 2755839722841600
Volume 9.8436022782827E+21
Space diagonal 37120342.959364

Equilateral Triangle

Length = n
Perimeter 64294320
Area 1.9888560072826E+14
Altitude 18560171.479682

Triangular Pyramid

Length = n
Surface area 1.9888560072826E+14
Volume 1.1600796537128E+21
Height 10102877.703062