21921640 (number)

21921640 is an even 8-digits composite number following 21921639 and preceding 21921641. In scientific notation, it is written as 2.1921640 × 10^7. The sum of its digits is 25. It has a total of 6 prime factors and 32 positive divisors. There are 8093952 positive integers (up to 21921640) that are relatively prime to 21921640.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred twenty-one thousand six hundred forty

Notation

Scientific notation 2.1921640 × 10^7
Engineering notation 2.1921640 × 10^6

Prime Factorization of 21921640

Prime Factorization 2 × 2 × 2 × 5 × 13 × 42157

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5480410
Product of the distinct prime numbers

The prime factorization of 21921640 is 2 × 2 × 2 × 5 × 13 × 42157. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 5, 14, 98, 185, 539, 7831, 5412, 68997, 95775, 421978, 417004, 1119448, 3993134, 67557502, 41664436, 410120161, 650883, 4199431748, 2758321305

Basic calculations (n = 21921640)

Multiplication

n×y
n×2 43843280
n×3 65764920
n×4 87686560
n×5 109608200

Division

n÷y
n÷2 10960820
n÷3 7307213.3333333
n÷3 5480410
n÷5 4384328

Exponentiation

ny
n2 480558300289600
n3 1.0534626057961E+22
n4 2.3093627997723E+29
n5 5.0625019926E+36

Nth Root

y√n
2√n 4682.0551043319
3√n 279.8708588142
4√n 68.425544238478
5√n 29.388309727486

Divisors of 21921640

1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 42157, 84314, 168628, 210785, 337256, 421570, 548041, 843140, 1096082, 1686280, 2192164, 2740205, 4384328, 5480410, 10960820, 21921640

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21921639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21921640 can be divided by 32 positive divisors. The sum of these divisors (counting 21921640) is 1, the average is 0.03125.

Base conversion 21921640

Base System Value
2 Binary 1010011100111111101101000
3 Ternary 1112020201211121
4 Quaternary 1103213331220
5 Quinary 21102443030
6 Senary 2101505024
8 Octal 123477550
10 Decimal 21921640
12 Duodecimal 7412174
16 Hexadecimal 14e7f68
20 Vigesimal 6h0420
36 Base36 d1uug

Cryptographic Hash Functions

md5 09d649ba037c7f90ec32e9fea2adfd9f
sha1 d9a1f2fcfa3b943f8fceaba8b98b87a08a28e7a2
sha256 ea3196c2e94e996759e8da2d950f18e2d2df6101d186faf3094b579daff1a7d1
sha512 04db32c30aac944d510f628f043f72ebfcca7fdf20d93d0b82075d57ca744e71bf129923bb2dc09dac10e5da18fa0901cfe7e0eed0a3303dd5406ca849652287
ripemd-160 7b6831059165268f7983103f17733a65c400b2e2

21921640 as geometric shapes

Circle

Radius = n
Diameter 43843280
Circumference 137737726.35728
Area 1.5097184258114E+15

Sphere

Radius = n
Volume 4.4127338442672E+22
Surface area 6.0388737032456E+15
Circumference 137737726.35728

Square

Length = n
Perimeter 87686560
Area 480558300289600
Diagonal 31001880.597461

Cube

Length = n
Surface area 2883349801737600
Volume 1.0534626057961E+22
Space diagonal 37969394.265234

Equilateral Triangle

Length = n
Perimeter 65764920
Area 2.0808784802513E+14
Altitude 18984697.132617

Triangular Pyramid

Length = n
Surface area 2.0808784802513E+14
Volume 1.2415175871414E+21
Height 10333960.199154