Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

21721768 (number)

21721768 is an even 8-digits composite number following 21721767 and preceding 21721769. In scientific notation, it is written as 2.1721768 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 8 positive divisors. There are 10860880 positive integers (up to 21721768) that are relatively prime to 21721768.

Interesting facts

21721768 has 8 divisors, whose sum is 40728330
The reverse of 21721768 is 86712712
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	twenty-one million seven hundred twenty-one thousand seven hundred sixty-eight

Notation

Scientific notation	2.1721768 × 10^7
Engineering notation	2.1721768 × 10^6

Prime Factorization of 21721768

Prime Factorization 2 × 2 × 2 × 2715221

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	5430442	Product of the distinct prime numbers

The prime factorization of 21721768 is 2 × 2 × 2 × 2715221. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 6, 47, 34, 333, 536, 3915, 8286, 99310, 68682, 894838, 804076, 8238831, 433499, 10438731, 71694751, 907383999, 559090304, 1939787070, 8382676852

Basic calculations (n = 21721768)

Multiplication

n×y

n×2	43443536
n×3	65165304
n×4	86887072
n×5	108608840

Division

n÷y

n÷2	10860884
n÷3	7240589.3333333
n÷3	5430442
n÷5	4344353.6

Exponentiation

n^y

n²	471835205045824
n³	1.0249094858238E+22
n⁴	2.2262846072063E+29
n⁵	4.8358837739707E+36

Nth Root

^y√n

²√n	4660.6617555879
³√n	279.01768022146
⁴√n	68.26903950978
⁵√n	29.334523236551

Divisors of 21721768

1, 2, 4, 8, 2715221, 5430442, 10860884, 21721768

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21721767	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21721768 can be divided by 8 positive divisors. The sum of these divisors (counting 21721768) is 1, the average is 0.125.

Base conversion 21721768

Base	System	Value
2	Binary	1010010110111001010101000
3	Ternary	1111212120122221
4	Quaternary	1102313022220
5	Quinary	21030044033
6	Senary	2053323424
8	Octal	122671250
10	Decimal	21721768
12	Duodecimal	7336574
16	Hexadecimal	14b72a8
20	Vigesimal	6ff488
36	Base36	cxkmg

Cryptographic Hash Functions

md5	477bc0947a59cdf9739a5ba3305555cf
sha1	a7e2778baf12000ff44d91bcef61ea87629db55a
sha256	ba29c722566292d9283faf566fff1d1a23eb160a724508ce5c2697f3ab7edefb
sha512	0e9103369f467a0136a67df1600771c5a8de236ddd223883567d64aa33a0327e07d487f39408372fb61a7e932f5edffae0ff94d6737b3b935db4f513958dfe7b
ripemd-160	0e749df23403376b0185664135b3260bacade74b

21721768 as geometric shapes

Circle

Radius = n

Diameter	43443536
Circumference	136481893.54356
Area	1.482314013877E+15

Sphere

Radius = n

Volume	4.2931308150113E+22
Surface area	5.929256055508E+15
Circumference	136481893.54356

Square

Length = n

Perimeter	86887072
Area	471835205045824
Diagonal	30719218.904322

Cube

Length = n

Surface area	2831011230274944
Volume	1.0249094858238E+22
Space diagonal	37623205.806224

Equilateral Triangle

Length = n

Perimeter	65165304
Area	2.0431063698476E+14
Altitude	18811602.903112

Triangular Pyramid

Length = n

Surface area	2.0431063698476E+14
Volume	1.2078674125474E+21
Height	10239739.634774