21438020 (number)

21438020 is an even 8-digits composite number following 21438019 and preceding 21438021. In scientific notation, it is written as 2.1438020 × 10^7. The sum of its digits is 20. It has a total of 5 prime factors and 24 positive divisors. There are 8068608 positive integers (up to 21438020) that are relatively prime to 21438020.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1438020 × 10^7
Engineering notation 2.1438020 × 10^6

Prime Factorization of 21438020

Prime Factorization 2 × 2 × 85 × 17 × 3709

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10719010
Product of the distinct prime numbers

The prime factorization of 21438020 is 2 × 2 × 85 × 17 × 3709. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 4, 83, 46, 769, 358, 3785, 5238, 95280, 75651, 246314, 201927, 4915365, 2570543, 14617185, 84314362, 168530399, 795294383, 1932305564, 5549808714

Basic calculations (n = 21438020)

Multiplication

n×y
n×2 42876040
n×3 64314060
n×4 85752080
n×5 107190100

Division

n÷y
n÷2 10719010
n÷3 7146006.6666667
n÷3 5359505
n÷5 4287604

Exponentiation

ny
n2 459588701520400
n3 9.8526717749684E+21
n4 2.1122177456521E+29
n5 4.5281766275644E+36

Nth Root

y√n
2√n 4630.1209487442
3√n 277.79743019477
4√n 68.044992091588
5√n 29.257481180541

Divisors of 21438020

1, 2, 4, 17, 34, 68, 85, 170, 340, 1445, 2890, 3709, 5780, 7418, 14836, 63053, 126106, 252212, 315265, 630530, 1261060, 5359505, 10719010, 21438020

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 -21438019
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 21438020 can be divided by 24 positive divisors. The sum of these divisors (counting 21438020) is 1, the average is 0.041666666666667.

Base conversion 21438020

Base System Value
2 Binary 1010001110001111001000100
3 Ternary 1111100011102202
4 Quaternary 1101301321010
5 Quinary 20442004040
6 Senary 2043254032
8 Octal 121617104
10 Decimal 21438020
12 Duodecimal 721a318
16 Hexadecimal 1471e44
20 Vigesimal 6djf10
36 Base36 crhok

Cryptographic Hash Functions

md5 6e073418806e9ec11437b32eee4ba6da
sha1 0d1692d0a13187b2421752e902cbdf877f03db7a
sha256 ef8d555ea4ab909754c7c88802ffb999067dbd4f4c8c30ea5bd25bbcdbd7cc07
sha512 bf985e2e6d5a2cf82e8b417f9fa33d7b51916fbd954b62f1e641b8aed80a9ab898fac8e26d9d7907bab8d8e0805ec20642141706389241489c1ce467c3ca0ab8
ripemd-160 4ef75d62515b4eb4d07f1e6d1228f6947a88490f

21438020 as geometric shapes

Circle

Radius = n
Diameter 42876040
Circumference 134699052.27902
Area 1.4438404883694E+15

Sphere

Radius = n
Volume 4.1270775021963E+22
Surface area 5.7753619534774E+15
Circumference 134699052.27902

Square

Length = n
Perimeter 85752080
Area 459588701520400
Diagonal 30317938.634426

Cube

Length = n
Surface area 2757532209122400
Volume 9.8526717749684E+21
Space diagonal 37131739.853678

Equilateral Triangle

Length = n
Perimeter 64314060
Area 1.9900774540449E+14
Altitude 18565869.926839

Triangular Pyramid

Length = n
Surface area 1.9900774540449E+14
Volume 1.1611485041476E+21
Height 10105979.544809