21909538 (number)

21909538 is an even 8-digits composite number following 21909537 and preceding 21909539. In scientific notation, it is written as 2.1909538 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 9369360 positive integers (up to 21909538) that are relatively prime to 21909538.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred nine thousand five hundred thirty-eight

Notation

Scientific notation 2.1909538 × 10^7
Engineering notation 2.1909538 × 10^6

Prime Factorization of 21909538

Prime Factorization 2 × 7 × 547 × 2861

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21909538
Product of the distinct prime numbers

The prime factorization of 21909538 is 2 × 7 × 547 × 2861. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 1, 92, 44, 677, 857, 9754, 6344, 16687, 36708, 814498, 789679, 3745987, 7974615, 9692724, 90715209, 167655667, 604971279, 5690383063, 3081723306

Basic calculations (n = 21909538)

Multiplication

n×y
n×2 43819076
n×3 65728614
n×4 87638152
n×5 109547690

Division

n÷y
n÷2 10954769
n÷3 7303179.3333333
n÷3 5477384.5
n÷5 4381907.6

Exponentiation

ny
n2 480027855373444
n3 1.0517188538363E+22
n4 2.3042674193443E+29
n5 5.0485434586285E+36

Nth Root

y√n
2√n 4680.7625447143
3√n 279.81934775638
4√n 68.416098578582
5√n 29.38506420491

Divisors of 21909538

1, 2, 7, 14, 547, 1094, 2861, 3829, 5722, 7658, 20027, 40054, 1564967, 3129934, 10954769, 21909538

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21909537
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21909538 can be divided by 16 positive divisors. The sum of these divisors (counting 21909538) is 1, the average is 0.0625.

Base conversion 21909538

Base System Value
2 Binary 1010011100101000000100010
3 Ternary 1112020010020101
4 Quaternary 1103211000202
5 Quinary 21102101123
6 Senary 2101333014
8 Octal 123450042
10 Decimal 21909538
12 Duodecimal 740716a
16 Hexadecimal 14e5022
20 Vigesimal 6gidgi
36 Base36 d1lia

Cryptographic Hash Functions

md5 0091f1e0a16b8cfe161555a52aec7fb4
sha1 e7d6a16814931ff5bf5cf7c171637a938e3fd372
sha256 cc396b5bc696f5a3bb3b866ae5ce8be4252cc8f0729f6c2fe804782c739d27ee
sha512 f2230ec820aad22347167ec25e8b8d7d095e5a9a75f8bb54d758e71b14c6e8313d30fcbcb265632b1be4a56610a8a4191ae21dc8b2543817b87e98e47dd34ca1
ripemd-160 ad698faaa5bd631cac0c835590b79814315b3b9a

21909538 as geometric shapes

Circle

Radius = n
Diameter 43819076
Circumference 137661687.24869
Area 1.5080519839597E+15

Sphere

Radius = n
Volume 4.4054296331387E+22
Surface area 6.0322079358387E+15
Circumference 137661687.24869

Square

Length = n
Perimeter 87638152
Area 480027855373444
Diagonal 30984765.784929

Cube

Length = n
Surface area 2880167132240664
Volume 1.0517188538363E+22
Space diagonal 37948432.986361

Equilateral Triangle

Length = n
Perimeter 65728614
Area 2.0785815863878E+14
Altitude 18974216.493181

Triangular Pyramid

Length = n
Surface area 2.0785815863878E+14
Volume 1.239462555749E+21
Height 10328255.261643