21809940 (number)

21809940 is an even 8-digits composite number following 21809939 and preceding 21809941. In scientific notation, it is written as 2.1809940 × 10^7. The sum of its digits is 33. It has a total of 6 prime factors and 48 positive divisors. There are 5568000 positive integers (up to 21809940) that are relatively prime to 21809940.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred nine thousand nine hundred forty

Notation

Scientific notation 2.1809940 × 10^7
Engineering notation 2.1809940 × 10^6

Prime Factorization of 21809940

Prime Factorization 2 × 2 × 15 × 59 × 101 × 61

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10904970
Product of the distinct prime numbers

The prime factorization of 21809940 is 2 × 2 × 15 × 59 × 101 × 61. Since it has a total of 6 prime factors.

Most popular turbo-numbers

7, 2, 51, 21, 249, 153, 1734, 2668, 49625, 83810, 239274, 515730, 4810468, 4089375, 65792752, 72732646, 792046711, 367954070, 5648345247, 4760865773

Basic calculations (n = 21809940)

Multiplication

n×y
n×2 43619880
n×3 65429820
n×4 87239760
n×5 109049700

Division

n÷y
n÷2 10904970
n÷3 7269980
n÷3 5452485
n÷5 4361988

Exponentiation

ny
n2 475673482803600
n3 1.0374410119538E+22
n4 2.2626526224251E+29
n5 4.9348317935933E+36

Nth Root

y√n
2√n 4670.111347709
3√n 279.39469579724
4√n 68.338212939094
5√n 29.358299332565

Divisors of 21809940

1, 2, 4, 15, 30, 59, 60, 61, 101, 118, 122, 202, 236, 244, 404, 885, 915, 1515, 1770, 1830, 3030, 3540, 3599, 3660, 5959, 6060, 6161, 7198, 11918, 12322, 14396, 23836, 24644, 53985, 89385, 92415, 107970, 178770, 184830, 215940, 357540, 363499, 369660, 726998, 1453996, 5452485, 10904970, 21809940

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21809939
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21809940 can be divided by 48 positive divisors. The sum of these divisors (counting 21809940) is 1, the average is 0.020833333333333.

Base conversion 21809940

Base System Value
2 Binary 1010011001100101100010100
3 Ternary 1112001001121120
4 Quaternary 1103030230110
5 Quinary 21040404230
6 Senary 2055243540
8 Octal 123145424
10 Decimal 21809940
12 Duodecimal 73795b0
16 Hexadecimal 14ccb14
20 Vigesimal 6g64h0
36 Base36 czgno

Cryptographic Hash Functions

md5 009e23e146ba92725d3ba32286d9314a
sha1 a2e83946cd1076c666bae3acafac3ebf2ef0ceba
sha256 13dbe65e71c7e073b049ed27b6acb445b6d9fa3ce1bb0a5fd0a986799e21f5e8
sha512 1e6c719f42116c33f1cdc677a3ab95b6aaf999804257de7eb4aef66c84da3a2d13ba4594700103313b19fae129d639c2ff16187e0716acc8af8fa741655f8c90
ripemd-160 1736c8d41e6390527e550e34c5f1635d4d753c42

21809940 as geometric shapes

Circle

Radius = n
Diameter 43619880
Circumference 137035894.55847
Area 1.4943723190833E+15

Sphere

Radius = n
Volume 4.3456227489156E+22
Surface area 5.977489276333E+15
Circumference 137035894.55847

Square

Length = n
Perimeter 87239760
Area 475673482803600
Diagonal 30843912.942543

Cube

Length = n
Surface area 2854040896821600
Volume 1.0374410119538E+22
Space diagonal 37775924.190029

Equilateral Triangle

Length = n
Perimeter 65429820
Area 2.0597266000727E+14
Altitude 18887962.095014

Triangular Pyramid

Length = n
Surface area 2.0597266000727E+14
Volume 1.2226359577226E+21
Height 10281304.314181