20921438 (number)

20921438 is an even 8-digits composite number following 20921437 and preceding 20921439. In scientific notation, it is written as 2.0921438 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 10460718 positive integers (up to 20921438) that are relatively prime to 20921438.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921438 × 10^7
Engineering notation 2.0921438 × 10^6

Prime Factorization of 20921438

Prime Factorization 2 × 10460719

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20921438
Product of the distinct prime numbers

The prime factorization of 20921438 is 2 × 10460719. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 10, 76, 84, 360, 662, 6515, 7930, 44067, 45251, 608998, 428783, 9929173, 4938509, 88176330, 95596735, 139489896, 702624522, 4898401493, 7618269079

Basic calculations (n = 20921438)

Multiplication

n×y
n×2 41842876
n×3 62764314
n×4 83685752
n×5 104607190

Division

n÷y
n÷2 10460719
n÷3 6973812.6666667
n÷3 5230359.5
n÷5 4184287.6

Exponentiation

ny
n2 437706567987844
n3 9.1574508243505E+21
n4 1.915870396597E+29
n5 4.0082763718439E+36

Nth Root

y√n
2√n 4573.9958460847
3√n 275.54794549406
4√n 67.631322965655
5√n 29.115101357661

Divisors of 20921438

1, 2, 10460719, 20921438

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 -20921437
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 20921438 can be divided by 4 positive divisors. The sum of these divisors (counting 20921438) is 1, the average is 0.25.

Base conversion 20921438

Base System Value
2 Binary 1001111110011110001011110
3 Ternary 1110100220211002
4 Quaternary 1033303301132
5 Quinary 20323441223
6 Senary 2024230302
8 Octal 117636136
10 Decimal 20921438
12 Duodecimal 700b392
16 Hexadecimal 13f3c5e
20 Vigesimal 6af3bi
36 Base36 cgf32

Cryptographic Hash Functions

md5 61fc83e4c7d77123407f16b893313a36
sha1 5269c659e7fa2449623e3ac69ca51e31b2720d22
sha256 eb2315cd0ae489f5f48d298faf35e0ac9cccf66af6e7b7928e3e0a101388a50b
sha512 b6004637bfe88a7e705d1872691c65a902fa6731441ecadf6dba8608cc9e7f6f5a90e2d4fa7b7731f384d9d2ab770fd5dd0851536669a3294fea9a956ceb3e5f
ripemd-160 13809ce071014bb4be481bf5c6314934b822dfb1

20921438 as geometric shapes

Circle

Radius = n
Diameter 41842876
Circumference 131453271.84667
Area 1.3750957384186E+15

Sphere

Radius = n
Volume 3.8358640313852E+22
Surface area 5.5003829536744E+15
Circumference 131453271.84667

Square

Length = n
Perimeter 83685752
Area 437706567987844
Diagonal 29587381.363948

Cube

Length = n
Surface area 2626239407927064
Volume 9.1574508243505E+21
Space diagonal 36236993.583402

Equilateral Triangle

Length = n
Perimeter 62764314
Area 1.8953250364039E+14
Altitude 18118496.791701

Triangular Pyramid

Length = n
Surface area 1.8953250364039E+14
Volume 1.0792159293801E+21
Height 9862460.4546493