21494939 (number)

21494939 is an odd 8-digits composite number following 21494938 and preceding 21494940. In scientific notation, it is written as 2.1494939 × 10^7. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 21130560 positive integers (up to 21494939) that are relatively prime to 21494939.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1494939 × 10^7
Engineering notation 2.1494939 × 10^6

Prime Factorization of 21494939

Prime Factorization 59 × 364321

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21494939
Product of the distinct prime numbers

The prime factorization of 21494939 is 59 × 364321. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21494939)

Multiplication

n×y
n×2 42989878
n×3 64484817
n×4 85979756
n×5 107474695

Division

n÷y
n÷2 10747469.5
n÷3 7164979.6666667
n÷3 5373734.75
n÷5 4298987.8

Exponentiation

ny
n2 462032402613721
n3 9.9313583102054E+21
n4 2.1347394106501E+29
n5 4.5886093412819E+36

Nth Root

y√n
2√n 4636.2634739626
3√n 278.04306822006
4√n 68.09011289433
5√n 29.273000718214

Divisors of 21494939

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 -21494938
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 21494939 can be divided by 4 positive divisors. The sum of these divisors (counting 21494939) is 1, the average is 0.25.

Base conversion 21494939

Base System Value
2 Binary 1010001111111110010011011
3 Ternary 1111110001111212
4 Quaternary 1101333302123
5 Quinary 21000314224
6 Senary 2044413335
8 Octal 121776233
10 Decimal 21494939
12 Duodecimal 724724b
16 Hexadecimal 147fc9b
20 Vigesimal 6e6h6j
36 Base36 cspln

Cryptographic Hash Functions

md5 c949d657b7e7c9df97d969bff96c8ac0
sha1 15af914e8f1c28e43d8d136bfedbe200990d6756
sha256 e2a8386e7884db85d556252b7c1d8d9ed056dc6badcf09e148083d4caf347d17
sha512 b21c5881ef64b87b5173934240137065d429e4b91dc72a69c4b768b3ee2fa2d67211952f7564eb9b69298a1f244f9e152c4aa74d8c974ed4708c884ef1208d6c
ripemd-160 159363a4f52ce8c8e148ef79f9e61076917cea8d

21494939 as geometric shapes

Circle

Radius = n
Diameter 42989878
Circumference 135056684.90352
Area 1.4515176017717E+15

Sphere

Radius = n
Volume 4.1600376410012E+22
Surface area 5.8060704070868E+15
Circumference 135056684.90352

Square

Length = n
Perimeter 85979756
Area 462032402613721
Diagonal 30398434.256182

Cube

Length = n
Surface area 2772194415682326
Volume 9.9313583102054E+21
Space diagonal 37230326.453594

Equilateral Triangle

Length = n
Perimeter 64484817
Area 2.0006589901752E+14
Altitude 18615163.226797

Triangular Pyramid

Length = n
Surface area 2.0006589901752E+14
Volume 1.1704218012566E+21
Height 10132811.418727