21091738 (number)

21091738 is an even 8-digits composite number following 21091737 and preceding 21091739. In scientific notation, it is written as 2.1091738 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 10545868 positive integers (up to 21091738) that are relatively prime to 21091738.

Interesting facts

Basic properties

Name

Name twenty-one million ninety-one thousand seven hundred thirty-eight

Notation

Scientific notation 2.1091738 × 10^7
Engineering notation 2.1091738 × 10^6

Prime Factorization of 21091738

Prime Factorization 2 × 10545869

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21091738
Product of the distinct prime numbers

The prime factorization of 21091738 is 2 × 10545869. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 6, 4, 42, 27, 883, 7438, 4143, 77126, 10917, 361707, 251529, 9148339, 9376210, 75497771, 53478207, 661981913, 576287703, 852269790, 5239713013

Basic calculations (n = 21091738)

Multiplication

n×y
n×2 42183476
n×3 63275214
n×4 84366952
n×5 105458690

Division

n÷y
n÷2 10545869
n÷3 7030579.3333333
n÷3 5272934.5
n÷5 4218347.6

Exponentiation

ny
n2 444861411860644
n3 9.3829003452748E+21
n4 1.9790167576265E+29
n5 4.1740902949467E+36

Nth Root

y√n
2√n 4592.5742236789
3√n 276.29357720448
4√n 67.768534170948
5√n 29.162347020029

Divisors of 21091738

1, 2, 10545869, 21091738

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 -21091737
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 21091738 can be divided by 4 positive divisors. The sum of these divisors (counting 21091738) is 1, the average is 0.25.

Base conversion 21091738

Base System Value
2 Binary 1010000011101010110011010
3 Ternary 1110200120102111
4 Quaternary 1100131112122
5 Quinary 20344413423
6 Senary 2032022534
8 Octal 120352632
10 Decimal 21091738
12 Duodecimal 7091a4a
16 Hexadecimal 141d59a
20 Vigesimal 6bg96i
36 Base36 ck2hm

Cryptographic Hash Functions

md5 d4f0988ba39b720350b78dbf6edf118a
sha1 fde8c1d2af3a29f608769564c5122316fe231d54
sha256 052e9733fdeebe697309c0afd9288be6989d1ac8cabe84eb7f5b393d60a2b1ea
sha512 71efbb1af73df0f9717745873ccb0c3d87e7d428305b33a8b07d853eca724ec77b38b717398f31489f60c90792f8a6ef3544173d49036a55ac5fe9a3315ff3a6
ripemd-160 9ffd1d1d7e17800bcf9869d6ab6f603ccc0c585a

21091738 as geometric shapes

Circle

Radius = n
Diameter 42183476
Circumference 132523298.30448
Area 1.397573343367E+15

Sphere

Radius = n
Volume 3.9303001058774E+22
Surface area 5.5902933734679E+15
Circumference 132523298.30448

Square

Length = n
Perimeter 84366952
Area 444861411860644
Diagonal 29828221.93362

Cube

Length = n
Surface area 2669168471163864
Volume 9.3829003452748E+21
Space diagonal 36531961.835931

Equilateral Triangle

Length = n
Perimeter 63275214
Area 1.9263064191736E+14
Altitude 18265980.917966

Triangular Pyramid

Length = n
Surface area 1.9263064191736E+14
Volume 1.1057854102236E+21
Height 9942740.64454