21909420 (number)

21909420 is an even 8-digits composite number following 21909419 and preceding 21909421. In scientific notation, it is written as 2.1909420 × 10^7. The sum of its digits is 27. It has a total of 7 prime factors and 72 positive divisors. There are 5391360 positive integers (up to 21909420) that are relatively prime to 21909420.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1909420 × 10^7
Engineering notation 2.1909420 × 10^6

Prime Factorization of 21909420

Prime Factorization 2 × 2 × 15 × 3 × 3 × 13 × 3121

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 3651570
Product of the distinct prime numbers

The prime factorization of 21909420 is 2 × 2 × 15 × 3 × 3 × 13 × 3121. Since it has a total of 7 prime factors.

Most popular turbo-numbers

5, 10, 44, 88, 325, 859, 1844, 7155, 70749, 16258, 707943, 41874, 9718671, 7947676, 77666829, 79640140, 785790814, 414289381, 3800426007, 70830407

Basic calculations (n = 21909420)

Multiplication

n×y
n×2 43818840
n×3 65728260
n×4 87637680
n×5 109547100

Division

n÷y
n÷2 10954710
n÷3 7303140
n÷3 5477355
n÷5 4381884

Exponentiation

ny
n2 480022684736400
n3 1.0517018609417E+22
n4 2.3042177786154E+29
n5 5.0484075083152E+36

Nth Root

y√n
2√n 4680.7499399135
3√n 279.81884540679
4√n 68.416006459844
5√n 29.38503255253

Divisors of 21909420

1, 2, 3, 4, 6, 9, 12, 13, 15, 18, 26, 30, 36, 39, 45, 52, 60, 78, 90, 117, 135, 156, 180, 195, 234, 270, 390, 468, 540, 585, 780, 1170, 1755, 2340, 3121, 3510, 6242, 7020, 9363, 12484, 18726, 28089, 37452, 40573, 46815, 56178, 81146, 93630, 112356, 121719, 140445, 162292, 187260, 243438, 280890, 365157, 421335, 486876, 561780, 608595, 730314, 842670, 1217190, 1460628, 1685340, 1825785, 2434380, 3651570, 5477355, 7303140, 10954710, 21909420

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21909419
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21909420 can be divided by 72 positive divisors. The sum of these divisors (counting 21909420) is 1, the average is 0.013888888888889.

Base conversion 21909420

Base System Value
2 Binary 1010011100100111110101100
3 Ternary 1112020010002000
4 Quaternary 1103210332230
5 Quinary 21102100140
6 Senary 2101332300
8 Octal 123447654
10 Decimal 21909420
12 Duodecimal 7407090
16 Hexadecimal 14e4fac
20 Vigesimal 6gidb0
36 Base36 d1lf0

Cryptographic Hash Functions

md5 c9fc201028b56eea169888c2acb52e32
sha1 b785ebb897307845813274a0a432276a141a5e31
sha256 4b0c3d0fd22ba27466f3cc1d43fee87786867c037b6f4ef715cf2452ab223ada
sha512 b6699e45f99da00e8365e13f6c69d53708e51bcb0f6e1a75c17a7dec566f1ee09694f0334b4842788d7d4da6395e48a3b772e828195192cb5329f563c018ec9a
ripemd-160 89068149b7d39aa0ec328cf0c5671afe51221900

21909420 as geometric shapes

Circle

Radius = n
Diameter 43818840
Circumference 137660945.83283
Area 1.5080357399243E+15

Sphere

Radius = n
Volume 4.4053584534684E+22
Surface area 6.0321429596973E+15
Circumference 137660945.83283

Square

Length = n
Perimeter 87637680
Area 480022684736400
Diagonal 30984598.907728

Cube

Length = n
Surface area 2880136108418400
Volume 1.0517018609417E+22
Space diagonal 37948228.604366

Equilateral Triangle

Length = n
Perimeter 65728260
Area 2.0785591968727E+14
Altitude 18974114.302183

Triangular Pyramid

Length = n
Surface area 2.0785591968727E+14
Volume 1.2394425294307E+21
Height 10328199.635909