20921428 (number)

20921428 is an even 8-digits composite number following 20921427 and preceding 20921429. In scientific notation, it is written as 2.0921428 × 10^7. The sum of its digits is 28. It has a total of 6 prime factors and 48 positive divisors. There are 9072000 positive integers (up to 20921428) that are relatively prime to 20921428.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921428 × 10^7
Engineering notation 2.0921428 × 10^6

Prime Factorization of 20921428

Prime Factorization 2 × 2 × 11 × 71 × 181 × 37

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10460714
Product of the distinct prime numbers

The prime factorization of 20921428 is 2 × 2 × 11 × 71 × 181 × 37. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20921428)

Multiplication

n×y
n×2 41842856
n×3 62764284
n×4 83685712
n×5 104607140

Division

n÷y
n÷2 10460714
n÷3 6973809.3333333
n÷3 5230357
n÷5 4184285.6

Exponentiation

ny
n2 437706149559184
n3 9.1574376931597E+21
n4 1.9158667336193E+29
n5 4.0082667925011E+36

Nth Root

y√n
2√n 4573.9947529485
3√n 275.54790159204
4√n 67.631314884072
5√n 29.115098574381

Divisors of 20921428

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 -20921427
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 20921428 can be divided by 48 positive divisors. The sum of these divisors (counting 20921428) is 1, the average is 0.020833333333333.

Base conversion 20921428

Base System Value
2 Binary 1001111110011110001010100
3 Ternary 1110100220210201
4 Quaternary 1033303301110
5 Quinary 20323441203
6 Senary 2024230244
8 Octal 117636124
10 Decimal 20921428
12 Duodecimal 700b384
16 Hexadecimal 13f3c54
20 Vigesimal 6af3b8
36 Base36 cgf2s

Cryptographic Hash Functions

md5 27e82defd2df512c9af5bc511b69bad3
sha1 3589bb3649ecf29fdab4dbf5e73750feb5cc8a22
sha256 d260175e97bef84db630e7027760579ccb204f1fe48c10206d0f35cab58ca824
sha512 7271e2ad5f853f9efc7cae7ed3312a0332eb790afa5c4894082566fbb0d658a1039f6f971e947d6766cdc48abc1260b66c4e00650154f39c8f796782fab81e75
ripemd-160 971ae34896d80d77d0126d4a83a0c2b8f8e19160

20921428 as geometric shapes

Circle

Radius = n
Diameter 41842856
Circumference 131453209.01482
Area 1.3750944238862E+15

Sphere

Radius = n
Volume 3.8358585310049E+22
Surface area 5.5003776955448E+15
Circumference 131453209.01482

Square

Length = n
Perimeter 83685712
Area 437706149559184
Diagonal 29587367.221812

Cube

Length = n
Surface area 2626236897355104
Volume 9.1574376931597E+21
Space diagonal 36236976.262894

Equilateral Triangle

Length = n
Perimeter 62764284
Area 1.8953232245546E+14
Altitude 18118488.131447

Triangular Pyramid

Length = n
Surface area 1.8953232245546E+14
Volume 1.0792143818544E+21
Height 9862455.7406041