21305438 (number)

21305438 is an even 8-digits composite number following 21305437 and preceding 21305439. In scientific notation, it is written as 2.1305438 × 10^7. The sum of its digits is 26. It has a total of 5 prime factors and 24 positive divisors. There are 8300160 positive integers (up to 21305438) that are relatively prime to 21305438.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred five thousand four hundred thirty-eight

Notation

Scientific notation 2.1305438 × 10^7
Engineering notation 2.1305438 × 10^6

Prime Factorization of 21305438

Prime Factorization 2 × 11 × 11 × 7 × 12577

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1936858
Product of the distinct prime numbers

The prime factorization of 21305438 is 2 × 11 × 11 × 7 × 12577. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 3, 71, 69, 129, 189, 2977, 6565, 80940, 18767, 544067, 545782, 5061370, 6650154, 74693639, 1870580, 460521579, 34504164, 8241249710, 3445045391

Basic calculations (n = 21305438)

Multiplication

n×y
n×2 42610876
n×3 63916314
n×4 85221752
n×5 106527190

Division

n÷y
n÷2 10652719
n÷3 7101812.6666667
n÷3 5326359.5
n÷5 4261087.6

Exponentiation

ny
n2 453921688371844
n3 9.6710003884616E+21
n4 2.0604489917435E+29
n5 4.3898768245753E+36

Nth Root

y√n
2√n 4615.7814073026
3√n 277.22357236343
4√n 67.939542295357
5√n 29.221203138671

Divisors of 21305438

1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 12577, 25154, 88039, 138347, 176078, 276694, 968429, 1521817, 1936858, 3043634, 10652719, 21305438

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21305437
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21305438 can be divided by 24 positive divisors. The sum of these divisors (counting 21305438) is 1, the average is 0.041666666666667.

Base conversion 21305438

Base System Value
2 Binary 1010001010001100001011110
3 Ternary 1111002102120022
4 Quaternary 1101101201132
5 Quinary 20423233223
6 Senary 2040352142
8 Octal 121214136
10 Decimal 21305438
12 Duodecimal 7175652
16 Hexadecimal 145185e
20 Vigesimal 6d33bi
36 Base36 condq

Cryptographic Hash Functions

md5 ae9ad081377477a5c3695418d487690e
sha1 310f57e46bac712bbe2de0264260d34ea6b53cb7
sha256 e6a9c367328cb7b4a8eca3db986065546fe1b79279e2fa61409909f45a38ccc7
sha512 4531b5b6aeabcd2e580b7b3ab0d0b07d824214266b1453c4f72038287ed61311ad4b0864373ddebba4e4a4482ee856e58c12ac747480848a1b76489f05cbb28c
ripemd-160 d5c4ba77639453829822e39d9c0e1f02e9dfc536

21305438 as geometric shapes

Circle

Radius = n
Diameter 42610876
Circumference 133866015.00463
Area 1.4260370414941E+15

Sphere

Radius = n
Volume 4.0509791697674E+22
Surface area 5.7041481659762E+15
Circumference 133866015.00463

Square

Length = n
Perimeter 85221752
Area 453921688371844
Diagonal 30130439.371899

Cube

Length = n
Surface area 2723530130231064
Volume 9.6710003884616E+21
Space diagonal 36902101.093509

Equilateral Triangle

Length = n
Perimeter 63916314
Area 1.9655385672937E+14
Altitude 18451050.546754

Triangular Pyramid

Length = n
Surface area 1.9655385672937E+14
Volume 1.1397383259232E+21
Height 10043479.790633