20421904 (number)

20421904 is an even 8-digits composite number following 20421903 and preceding 20421905. In scientific notation, it is written as 2.0421904 × 10^7. The sum of its digits is 22. It has a total of 6 prime factors and 20 positive divisors. There are 9973152 positive integers (up to 20421904) that are relatively prime to 20421904.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0421904 × 10^7
Engineering notation 2.0421904 × 10^6

Prime Factorization of 20421904

Prime Factorization 2 × 2 × 2 × 2 × 43 × 29683

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2552738
Product of the distinct prime numbers

The prime factorization of 20421904 is 2 × 2 × 2 × 2 × 43 × 29683. Since it has a total of 6 prime factors.

Most popular turbo-numbers

9, 7, 5, 57, 623, 302, 6536, 9897, 61724, 98012, 306917, 321614, 7603183, 6557611, 10910078, 97189771, 97053653, 937255111, 3303230194, 7479549112

Basic calculations (n = 20421904)

Multiplication

n×y
n×2 40843808
n×3 61265712
n×4 81687616
n×5 102109520

Division

n÷y
n÷2 10210952
n÷3 6807301.3333333
n÷3 5105476
n÷5 4084380.8

Exponentiation

ny
n2 417054162985216
n3 8.5170400792844E+21
n4 1.739341748633E+29
n5 3.5520670213775E+36

Nth Root

y√n
2√n 4519.0600792643
3√n 273.33720134654
4√n 67.223954653563
5√n 28.974719883482

Divisors of 20421904

1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 29683, 59366, 118732, 237464, 474928, 1276369, 2552738, 5105476, 10210952, 20421904

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20421903
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20421904 can be divided by 20 positive divisors. The sum of these divisors (counting 20421904) is 1, the average is 0.05.

Base conversion 20421904

Base System Value
2 Binary 1001101111001110100010000
3 Ternary 1102102112120211
4 Quaternary 1031321310100
5 Quinary 20212000104
6 Senary 2005413504
8 Octal 115716420
10 Decimal 20421904
12 Duodecimal 6a0a294
16 Hexadecimal 1379d10
20 Vigesimal 67cef4
36 Base36 c5pn4

Cryptographic Hash Functions

md5 d07ed40fdf8fec56febab83b37692d8e
sha1 728a85ebb1f141c8349d731ddafb16238308c659
sha256 4482e2ebeab7d17777159f44808860a639065620481875aa1bee750405db948f
sha512 eb6f0e3c7abf00b5989f195ac4777339214ac8697197e591795182ed2078dc6942d4c629ca799cfb8fd33fa47ad38b9caa9e8fa515ef0d4bedfc12a14ca039b9
ripemd-160 e6862c1b6921fa2d9eb34092780dcebe02190f86

20421904 as geometric shapes

Circle

Radius = n
Diameter 40843808
Circumference 128314607.15743
Area 1.3102142945834E+15

Sphere

Radius = n
Volume 3.567609405788E+22
Surface area 5.2408571783336E+15
Circumference 128314607.15743

Square

Length = n
Perimeter 81687616
Area 417054162985216
Diagonal 28880933.606281

Cube

Length = n
Surface area 2502324977911296
Volume 8.5170400792844E+21
Space diagonal 35371775.315294

Equilateral Triangle

Length = n
Perimeter 61265712
Area 1.8058974994963E+14
Altitude 17685887.657647

Triangular Pyramid

Length = n
Surface area 1.8058974994963E+14
Volume 1.0037427992833E+21
Height 9626977.8687605