20421915 (number)

20421915 is an odd 8-digits composite number following 20421914 and preceding 20421916. In scientific notation, it is written as 2.0421915 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 10872576 positive integers (up to 20421915) that are relatively prime to 20421915.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0421915 × 10^7
Engineering notation 2.0421915 × 10^6

Prime Factorization of 20421915

Prime Factorization 3 × 5 × 1453 × 937

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20421915
Product of the distinct prime numbers

The prime factorization of 20421915 is 3 × 5 × 1453 × 937. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 3, 13, 16, 250, 952, 7220, 8882, 42018, 95675, 708129, 21557, 9642939, 5380735, 36391270, 65487399, 257464370, 65075934, 2841966925, 2811578763

Basic calculations (n = 20421915)

Multiplication

n×y
n×2 40843830
n×3 61265745
n×4 81687660
n×5 102109575

Division

n÷y
n÷2 10210957.5
n÷3 6807305
n÷3 5105478.75
n÷5 4084383

Exponentiation

ny
n2 417054612267225
n3 8.5170538420792E+21
n4 1.7393454961337E+29
n5 3.5520765877674E+36

Nth Root

y√n
2√n 4519.0612963314
3√n 273.33725042308
4√n 67.223963705894
5√n 28.974723004855

Divisors of 20421915

1, 3, 5, 15, 937, 1453, 2811, 4359, 4685, 7265, 14055, 21795, 1361461, 4084383, 6807305, 20421915

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20421914
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20421915 can be divided by 16 positive divisors. The sum of these divisors (counting 20421915) is 1, the average is 0.0625.

Base conversion 20421915

Base System Value
2 Binary 1001101111001110100011011
3 Ternary 1102102112121020
4 Quaternary 1031321310123
5 Quinary 20212000130
6 Senary 2005413523
8 Octal 115716433
10 Decimal 20421915
12 Duodecimal 6a0a2a3
16 Hexadecimal 1379d1b
20 Vigesimal 67ceff
36 Base36 c5pnf

Cryptographic Hash Functions

md5 c1741b40118931ecac6b76d5c153e2c3
sha1 80800592c25970682f089cc7de291b5afaa1f734
sha256 87c658c395ca9cbbe850918e132a6b5f31822f6750958b0739dad37dd6574fdf
sha512 eca811c99e36a8ff6d87dc765a406322b200793d6916020d3fb081dcc86a9835b9c8749fa01903976780b7e6c93428176e97bc9e987888c2840224b99f1961e0
ripemd-160 57f71a09d83d982393fc0ad2f8a625b448271962

20421915 as geometric shapes

Circle

Radius = n
Diameter 40843830
Circumference 128314676.27247
Area 1.3102157060445E+15

Sphere

Radius = n
Volume 3.567615170734E+22
Surface area 5.2408628241778E+15
Circumference 128314676.27247

Square

Length = n
Perimeter 81687660
Area 417054612267225
Diagonal 28880949.162631

Cube

Length = n
Surface area 2502327673603350
Volume 8.5170538420792E+21
Space diagonal 35371794.367853

Equilateral Triangle

Length = n
Perimeter 61265745
Area 1.8058994449444E+14
Altitude 17685897.183926

Triangular Pyramid

Length = n
Surface area 1.8058994449444E+14
Volume 1.0037444212442E+21
Height 9626983.0542102