21621568 (number)

21621568 is an even 8-digits composite number following 21621567 and preceding 21621569. In scientific notation, it is written as 2.1621568 × 10^7. The sum of its digits is 31. It has a total of 7 prime factors and 14 positive divisors. There are 10810752 positive integers (up to 21621568) that are relatively prime to 21621568.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred twenty-one thousand five hundred sixty-eight

Notation

Scientific notation 2.1621568 × 10^7
Engineering notation 2.1621568 × 10^6

Prime Factorization of 21621568

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 337837

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 675674
Product of the distinct prime numbers

The prime factorization of 21621568 is 2 × 2 × 2 × 2 × 2 × 2 × 337837. Since it has a total of 7 prime factors.

Most popular turbo-numbers

4, 8, 67, 18, 482, 502, 4749, 2079, 47575, 78679, 227684, 680289, 3001781, 8672263, 9182720, 10685829, 548723678, 172283984, 1597314979, 7543982481

Basic calculations (n = 21621568)

Multiplication

n×y
n×2 43243136
n×3 64864704
n×4 86486272
n×5 108107840

Division

n÷y
n÷2 10810784
n÷3 7207189.3333333
n÷3 5405392
n÷5 4324313.6

Exponentiation

ny
n2 467492202778624
n3 1.0107914451848E+22
n4 2.1854895965881E+29
n5 4.7253711925922E+36

Nth Root

y√n
2√n 4649.8997838663
3√n 278.58799342968
4√n 68.190173660626
5√n 29.307409810209

Divisors of 21621568

1, 2, 4, 8, 16, 32, 64, 337837, 675674, 1351348, 2702696, 5405392, 10810784, 21621568

14 divisors

τ Total Divisors 14
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21621567
Sum of the proper positive divisors of n
A Arithmetic Mean 0.071428571428571
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 14
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21621568 can be divided by 14 positive divisors. The sum of these divisors (counting 21621568) is 1, the average is 0.071428571428571.

Base conversion 21621568

Base System Value
2 Binary 1010010011110101101000000
3 Ternary 1111200111012211
4 Quaternary 1102132231000
5 Quinary 21013342233
6 Senary 2051231504
8 Octal 122365500
10 Decimal 21621568
12 Duodecimal 72a8594
16 Hexadecimal 149eb40
20 Vigesimal 6f2di8
36 Base36 cvfb4

Cryptographic Hash Functions

md5 cb50d1741dcb9dfe53ff510f30a7abee
sha1 24d098e7ca54f49c7e3ca37725239c39533d973d
sha256 efa532eee2265613f0df9e57cf64f81b010f77e9a164ef9419a56b2d1027ea18
sha512 38be483355a02c75056990ada82d366c5a557865ce22c94d0345d21a31f9b7c06fd8b56cee4374e9961f3c946a6df10ae25e8f02cd255aa463788553a033a671
ripemd-160 92d9a9df8bdc585dd6f0d0892f6eb663f79ea7ec

21621568 as geometric shapes

Circle

Radius = n
Diameter 43243136
Circumference 135852318.37578
Area 1.4686700698598E+15

Sphere

Radius = n
Volume 4.2339933046719E+22
Surface area 5.8746802794393E+15
Circumference 135852318.37578

Square

Length = n
Perimeter 86486272
Area 467492202778624
Diagonal 30577514.705372

Cube

Length = n
Surface area 2804953216671744
Volume 1.0107914451848E+22
Space diagonal 37449654.315305

Equilateral Triangle

Length = n
Perimeter 64864704
Area 2.0243006183872E+14
Altitude 18724827.157653

Triangular Pyramid

Length = n
Surface area 2.0243006183872E+14
Volume 1.1912291420925E+21
Height 10192504.901791