21000420 (number)

21000420 is an even 8-digits composite number following 21000419 and preceding 21000421. In scientific notation, it is written as 2.1000420 × 10^7. The sum of its digits is 9. It has a total of 6 prime factors and 36 positive divisors. There are 4798080 positive integers (up to 21000420) that are relatively prime to 21000420.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred twenty

Notation

Scientific notation 2.1000420 × 10^7
Engineering notation 2.1000420 × 10^6

Prime Factorization of 21000420

Prime Factorization 2 × 2 × 45 × 7 × 7 × 2381

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 1500030
Product of the distinct prime numbers

The prime factorization of 21000420 is 2 × 2 × 45 × 7 × 7 × 2381. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 2, 60, 6, 399, 433, 660, 3586, 164, 22925, 339636, 642888, 4233386, 3440951, 58860988, 15464613, 350201210, 56478001, 9293457565, 2568742746

Basic calculations (n = 21000420)

Multiplication

n×y
n×2 42000840
n×3 63001260
n×4 84001680
n×5 105002100

Division

n÷y
n÷2 10500210
n÷3 7000140
n÷3 5250105
n÷5 4200084

Exponentiation

ny
n2 441017640176400
n3 9.2615556711133E+21
n4 1.9449655894676E+29
n5 4.0845094264367E+36

Nth Root

y√n
2√n 4582.6215204837
3√n 275.89425690863
4√n 67.695062748207
5√n 29.137051132568

Divisors of 21000420

1, 2, 4, 7, 14, 28, 45, 49, 90, 98, 180, 196, 315, 630, 1260, 2205, 2381, 4410, 4762, 8820, 9524, 16667, 33334, 66668, 107145, 116669, 214290, 233338, 428580, 466676, 750015, 1500030, 3000060, 5250105, 10500210, 21000420

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21000419
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000420 can be divided by 36 positive divisors. The sum of these divisors (counting 21000420) is 1, the average is 0.027777777777778.

Base conversion 21000420

Base System Value
2 Binary 1010000000111000011100100
3 Ternary 1110111221011100
4 Quaternary 1100013003210
5 Quinary 20334003140
6 Senary 2030040100
8 Octal 120070344
10 Decimal 21000420
12 Duodecimal 7049030
16 Hexadecimal 14070e4
20 Vigesimal 6b5110
36 Base36 ci410

Cryptographic Hash Functions

md5 0b9ea274a338e05f3888504496c7abf1
sha1 40865b5dea94b00d50a9139268856b82d531f230
sha256 caa822e902754558533026f980c9323d86cc517520a6cef6277259ff7bd4ae20
sha512 dd03cc37c54736c88a6bb533803417d3f99e383eb4e6597ae816db386318ba74d844073818a9b77229209102a25962431b087af43e173669db30c4f1dc80b379
ripemd-160 639eab2d48eda000926bfbf839fcba7ff644f34f

21000420 as geometric shapes

Circle

Radius = n
Diameter 42000840
Circumference 131949530.3886
Area 1.3854977784817E+15

Sphere

Radius = n
Volume 3.8794713676243E+22
Surface area 5.5419911139267E+15
Circumference 131949530.3886

Square

Length = n
Perimeter 84001680
Area 441017640176400
Diagonal 29699078.779531

Cube

Length = n
Surface area 2646105841058400
Volume 9.2615556711133E+21
Space diagonal 36373794.420286

Equilateral Triangle

Length = n
Perimeter 63001260
Area 1.9096623995491E+14
Altitude 18186897.210143

Triangular Pyramid

Length = n
Surface area 1.9096623995491E+14
Volume 1.0914848032302E+21
Height 9899692.9265104