21308906 (number)

21308906 is an even 8-digits composite number following 21308905 and preceding 21308907. In scientific notation, it is written as 2.1308906 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 10645740 positive integers (up to 21308906) that are relatively prime to 21308906.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred eight thousand nine hundred six

Notation

Scientific notation 2.1308906 × 10^7
Engineering notation 2.1308906 × 10^6

Prime Factorization of 21308906

Prime Factorization 2 × 1471 × 7243

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21308906
Product of the distinct prime numbers

The prime factorization of 21308906 is 2 × 1471 × 7243. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21308906)

Multiplication

n×y
n×2 42617812
n×3 63926718
n×4 85235624
n×5 106544530

Division

n÷y
n÷2 10654453
n÷3 7102968.6666667
n÷3 5327226.5
n÷5 4261781.2

Exponentiation

ny
n2 454069474916836
n3 9.6757237584722E+21
n4 2.0617908805125E+29
n5 4.3934508064498E+36

Nth Root

y√n
2√n 4616.1570597197
3√n 277.23861326815
4√n 67.942306847205
5√n 29.222154375016

Divisors of 21308906

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 -21308905
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 21308906 can be divided by 8 positive divisors. The sum of these divisors (counting 21308906) is 1, the average is 0.125.

Base conversion 21308906

Base System Value
2 Binary 1010001010010010111101010
3 Ternary 1111002121022202
4 Quaternary 1101102113222
5 Quinary 20423341111
6 Senary 2040420202
8 Octal 121222752
10 Decimal 21308906
12 Duodecimal 7177662
16 Hexadecimal 14525ea
20 Vigesimal 6d3c56
36 Base36 coq22

Cryptographic Hash Functions

md5 d3801cae63fe95aaf598e930b0577272
sha1 04d34ae94b63b3fa15f60c7e8b05260ac892b4a5
sha256 b7a203bbff12c3f6e74787f8c969f6094129ace5a507a9a25183fce6555d1a11
sha512 073509005e6b17a0503db433bdb39d221f35efb557b6fd1d0638ab3d3840ed9fa38cba4ca0e72dc581f08848ed0f50e003bde5d20a38909e8b73faace79d75f1
ripemd-160 e7deaf1ba1cc5db4421e6264b51fec06c9447e36

21308906 as geometric shapes

Circle

Radius = n
Diameter 42617812
Circumference 133887805.09127
Area 1.4265013266181E+15

Sphere

Radius = n
Volume 4.0529576903707E+22
Surface area 5.7060053064724E+15
Circumference 133887805.09127

Square

Length = n
Perimeter 85235624
Area 454069474916836
Diagonal 30135343.864533

Cube

Length = n
Surface area 2724416849501016
Volume 9.6757237584722E+21
Space diagonal 36908107.845709

Equilateral Triangle

Length = n
Perimeter 63926718
Area 1.9661785018052E+14
Altitude 18454053.922855

Triangular Pyramid

Length = n
Surface area 1.9661785018052E+14
Volume 1.1402949804172E+21
Height 10045114.621511