21431449 (number)

21431449 is an odd 8-digits composite number following 21431448 and preceding 21431450. In scientific notation, it is written as 2.1431449 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 18741456 positive integers (up to 21431449) that are relatively prime to 21431449.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1431449 × 10^7
Engineering notation 2.1431449 × 10^6

Prime Factorization of 21431449

Prime Factorization 13 × 19 × 86767

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21431449
Product of the distinct prime numbers

The prime factorization of 21431449 is 13 × 19 × 86767. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21431449)

Multiplication

n×y
n×2 42862898
n×3 64294347
n×4 85725796
n×5 107157245

Division

n÷y
n÷2 10715724.5
n÷3 7143816.3333333
n÷3 5357862.25
n÷5 4286289.8

Exponentiation

ny
n2 459307006239601
n3 9.8436146795667E+21
n4 2.1096292598078E+29
n5 4.521241189048E+36

Nth Root

y√n
2√n 4629.4113016668
3√n 277.76904459062
4√n 68.039777348745
5√n 29.255687409624

Divisors of 21431449

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21431448
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21431449 can be divided by 8 positive divisors. The sum of these divisors (counting 21431449) is 1, the average is 0.125.

Base conversion 21431449

Base System Value
2 Binary 1010001110000010010011001
3 Ternary 1111022211102101
4 Quaternary 1101300102121
5 Quinary 20441301244
6 Senary 2043203401
8 Octal 121602231
10 Decimal 21431449
12 Duodecimal 7216561
16 Hexadecimal 1470499
20 Vigesimal 6diic9
36 Base36 crcm1

Cryptographic Hash Functions

md5 c65955cca656008aac5bb98af34e68be
sha1 1da9690e26ef042ffd020e6991f53662b219c416
sha256 74866e58920e958479a00a22d442ba9ff61d2f0963c0f1f603d50b3dbf0c397f
sha512 986bc94c440181e7e4eecd2bc474850bbc6febacdee8f11d015c18a2d1a5f736bf011557163f2173fba5a9922b79f2d586281f6a018fd673efa5a1b62e784104
ripemd-160 b805602a40c3f576042cb880d4e404be728e6e3d

21431449 as geometric shapes

Circle

Radius = n
Diameter 42862898
Circumference 134657765.46837
Area 1.4429555165447E+15

Sphere

Radius = n
Volume 4.123283674946E+22
Surface area 5.7718220661786E+15
Circumference 134657765.46837

Square

Length = n
Perimeter 85725796
Area 459307006239601
Diagonal 30308645.837107

Cube

Length = n
Surface area 2755842037437606
Volume 9.8436146795667E+21
Space diagonal 37120358.547821

Equilateral Triangle

Length = n
Perimeter 64294347
Area 1.9888576776984E+14
Altitude 18560179.273911

Triangular Pyramid

Length = n
Surface area 1.9888576776984E+14
Volume 1.1600811152182E+21
Height 10102881.945702