21749939 (number)

21749939 is an odd 8-digits composite number following 21749938 and preceding 21749940. In scientific notation, it is written as 2.1749939 × 10^7. The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors. There are 21714840 positive integers (up to 21749939) that are relatively prime to 21749939.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred forty-nine thousand nine hundred thirty-nine

Notation

Scientific notation 2.1749939 × 10^7
Engineering notation 2.1749939 × 10^6

Prime Factorization of 21749939

Prime Factorization 631 × 34469

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21749939
Product of the distinct prime numbers

The prime factorization of 21749939 is 631 × 34469. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 6, 85, 38, 257, 404, 2032, 4941, 38497, 80435, 746360, 41338, 2878426, 8449927, 23697064, 94466032, 727782464, 585817322, 7240526570, 2531871781

Basic calculations (n = 21749939)

Multiplication

n×y
n×2 43499878
n×3 65249817
n×4 86999756
n×5 108749695

Division

n÷y
n÷2 10874969.5
n÷3 7249979.6666667
n÷3 5437484.75
n÷5 4349987.8

Exponentiation

ny
n2 473059846503721
n3 1.0289022804805E+22
n4 2.2378561837412E+29
n5 4.8673235487145E+36

Nth Root

y√n
2√n 4663.6829866534
3√n 279.1382476256
4√n 68.291163313077
5√n 29.342128091666

Divisors of 21749939

1, 631, 34469, 21749939

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 -21749938
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 21749939 can be divided by 4 positive divisors. The sum of these divisors (counting 21749939) is 1, the average is 0.25.

Base conversion 21749939

Base System Value
2 Binary 1010010111110000010110011
3 Ternary 1111221000022022
4 Quaternary 1102332002303
5 Quinary 21031444224
6 Senary 2054102055
8 Octal 122760263
10 Decimal 21749939
12 Duodecimal 734a92b
16 Hexadecimal 14be0b3
20 Vigesimal 6fiegj
36 Base36 cy6cz

Cryptographic Hash Functions

md5 fe41524715695a684e52d1942669f5d3
sha1 5c9698c956fb7ee891a3dce784253704d69be874
sha256 c538d0252907a6763b51f2143b3fa4f07631bac98fdc6ab6dc15661c1c625961
sha512 69e561d9dec2448995a21ede575fe15bf59ecb216f8c0b0c064e2f3e56697c03f4570354f91e04b942413bfa46eeff800cffb4667a996780aebc782c3611b424
ripemd-160 165d5ed2ce88c5203dabd4c888a6ff14d3500e6a

21749939 as geometric shapes

Circle

Radius = n
Diameter 43499878
Circumference 136658897.15685
Area 1.4861613384844E+15

Sphere

Radius = n
Volume 4.3098557941592E+22
Surface area 5.9446453539376E+15
Circumference 136658897.15685

Square

Length = n
Perimeter 86999756
Area 473059846503721
Diagonal 30759058.714588

Cube

Length = n
Surface area 2838359079022326
Volume 1.0289022804805E+22
Space diagonal 37671999.409524

Equilateral Triangle

Length = n
Perimeter 65249817
Area 2.0484092229129E+14
Altitude 18835999.704762

Triangular Pyramid

Length = n
Surface area 2.0484092229129E+14
Volume 1.2125729661768E+21
Height 10253019.571529