21494021 (number)

21494021 is an odd 8-digits composite number following 21494020 and preceding 21494022. In scientific notation, it is written as 2.1494021 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 21141600 positive integers (up to 21494021) that are relatively prime to 21494021.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-four thousand twenty-one

Notation

Scientific notation 2.1494021 × 10^7
Engineering notation 2.1494021 × 10^6

Prime Factorization of 21494021

Prime Factorization 61 × 352361

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21494021
Product of the distinct prime numbers

The prime factorization of 21494021 is 61 × 352361. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21494021)

Multiplication

n×y
n×2 42988042
n×3 64482063
n×4 85976084
n×5 107470105

Division

n÷y
n÷2 10747010.5
n÷3 7164673.6666667
n÷3 5373505.25
n÷5 4298804.2

Exponentiation

ny
n2 461992938748441
n3 9.9300859273107E+21
n4 2.1343747545342E+29
n5 4.5876295795828E+36

Nth Root

y√n
2√n 4636.1644707668
3√n 278.03910996783
4√n 68.089385889188
5√n 29.272750677274

Divisors of 21494021

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21494020
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21494021 can be divided by 4 positive divisors. The sum of these divisors (counting 21494021) is 1, the average is 0.25.

Base conversion 21494021

Base System Value
2 Binary 1010001111111100100000101
3 Ternary 1111110000020212
4 Quaternary 1101333210011
5 Quinary 21000302041
6 Senary 2044405205
8 Octal 121774405
10 Decimal 21494021
12 Duodecimal 7246805
16 Hexadecimal 147f905
20 Vigesimal 6e6f11
36 Base36 csow5

Cryptographic Hash Functions

md5 2a6f364429da780c61f29f4ca6dbae15
sha1 51d390300ff39cb334ee30089740b63a5abe41dc
sha256 f54384cc6fabf3cf70a27ec11f54a7d826b65f084d129bab0c2e925e53c37c5b
sha512 36a5c266a8a895c21ef1066c42067d0d0c262b2989bc17781086a0be87212f7093657976a21c9249c77cbbe7f5deab55a326a6862f6c0bcb58626cba54ed27ca
ripemd-160 6f51aada848f08f505e3720a3ccee2ed0637a1f8

21494021 as geometric shapes

Circle

Radius = n
Diameter 42988042
Circumference 135050916.93941
Area 1.4513936223825E+15

Sphere

Radius = n
Volume 4.1595046665006E+22
Surface area 5.8055744895298E+15
Circumference 135050916.93941

Square

Length = n
Perimeter 85976084
Area 461992938748441
Diagonal 30397136.008132

Cube

Length = n
Surface area 2771957632490646
Volume 9.9300859273107E+21
Space diagonal 37228736.430952

Equilateral Triangle

Length = n
Perimeter 64482063
Area 2.0004881066259E+14
Altitude 18614368.215476

Triangular Pyramid

Length = n
Surface area 2.0004881066259E+14
Volume 1.1702718494944E+21
Height 10132378.669377