21000385 (number)

21000385 is an odd 8-digits composite number following 21000384 and preceding 21000386. In scientific notation, it is written as 2.1000385 × 10^7. The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors. There are 14400240 positive integers (up to 21000385) that are relatively prime to 21000385.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred eighty-five

Notation

Scientific notation 2.1000385 × 10^7
Engineering notation 2.1000385 × 10^6

Prime Factorization of 21000385

Prime Factorization 5 × 7 × 600011

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21000385
Product of the distinct prime numbers

The prime factorization of 21000385 is 5 × 7 × 600011. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 9, 67, 25, 131, 645, 9987, 8994, 42385, 29956, 104294, 134210, 2072630, 4536184, 53788937, 47015355, 421131035, 402053242, 3864990717, 7683820240

Basic calculations (n = 21000385)

Multiplication

n×y
n×2 42000770
n×3 63001155
n×4 84001540
n×5 105001925

Division

n÷y
n÷2 10500192.5
n÷3 7000128.3333333
n÷3 5250096.25
n÷5 4200077

Exponentiation

ny
n2 441016170148225
n3 9.2615093643382E+21
n4 1.9449526233221E+29
n5 4.0844753896524E+36

Nth Root

y√n
2√n 4582.6177017072
3√n 275.89410363703
4√n 67.695034542477
5√n 29.137041420405

Divisors of 21000385

1, 5, 7, 35, 600011, 3000055, 4200077, 21000385

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 -21000384
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 21000385 can be divided by 8 positive divisors. The sum of these divisors (counting 21000385) is 1, the average is 0.125.

Base conversion 21000385

Base System Value
2 Binary 1010000000111000011000001
3 Ternary 1110111221010001
4 Quaternary 1100013003001
5 Quinary 20334003020
6 Senary 2030040001
8 Octal 120070301
10 Decimal 21000385
12 Duodecimal 7049001
16 Hexadecimal 14070c1
20 Vigesimal 6b50j5
36 Base36 ci401

Cryptographic Hash Functions

md5 7772600f2c247b6d783cbdb842f52179
sha1 c6e6b4b9d43a8310f717603761ec25d78858906f
sha256 c9ebc7a4e2ed66bbc304824b4116c417c8db6b09f687348f7ea0d816d9c4bcc4
sha512 a22a8176ac9e00aad971f562424e506db8f6cd5d46a8dced66885e4815a6093b18096c5ddbc004d263a2bac13403794b92054447b06f1ffd78f519e3c471ebd1
ripemd-160 3b252141617ac7c9220617a8ef8d475f26164c85

21000385 as geometric shapes

Circle

Radius = n
Diameter 42000770
Circumference 131949310.47711
Area 1.385493160252E+15

Sphere

Radius = n
Volume 3.8794519706877E+22
Surface area 5.5419726410079E+15
Circumference 131949310.47711

Square

Length = n
Perimeter 84001540
Area 441016170148225
Diagonal 29699029.282057

Cube

Length = n
Surface area 2646097020889350
Volume 9.2615093643382E+21
Space diagonal 36373733.798507

Equilateral Triangle

Length = n
Perimeter 63001155
Area 1.9096560341404E+14
Altitude 18186866.899254

Triangular Pyramid

Length = n
Surface area 1.9096560341404E+14
Volume 1.0914793459244E+21
Height 9899676.4273522