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

20681721 (number)

20681721 is an odd 8-digits composite number following 20681720 and preceding 20681722. In scientific notation, it is written as 2.0681721 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 13787808 positive integers (up to 20681721) that are relatively prime to 20681721.

Interesting facts

20681721 has 4 divisors, whose sum is 22979700
The reverse of 20681721 is 12718602
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	twenty million six hundred eighty-one thousand seven hundred twenty-one

Notation

Scientific notation	2.0681721 × 10^7
Engineering notation	2.0681721 × 10^6

Prime Factorization of 20681721

Prime Factorization 9 × 2297969

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20681721	Product of the distinct prime numbers

The prime factorization of 20681721 is 9 × 2297969. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 7, 91, 59, 961, 190, 4402, 6407, 52074, 17092, 749899, 127220, 880102, 3222297, 43602761, 20934906, 610903778, 876687379, 2041397153, 746948768

Basic calculations (n = 20681721)

Multiplication

n×y

n×2	41363442
n×3	62045163
n×4	82726884
n×5	103408605

Division

n÷y

n÷2	10340860.5
n÷3	6893907
n÷3	5170430.25
n÷5	4136344.2

Exponentiation

n^y

n²	427733583521841
n³	8.8462666367289E+21
n⁴	1.8295601847244E+29
n⁵	3.7838453293178E+36

Nth Root

^y√n

²√n	4547.7160201578
³√n	274.49149445611
⁴√n	67.436755706053
⁵√n	29.048073515263

Divisors of 20681721

1, 9, 2297969, 20681721

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20681720	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20681721 can be divided by 4 positive divisors. The sum of these divisors (counting 20681721) is 1, the average is 0.25.

Base conversion 20681721

Base	System	Value
2	Binary	1001110111001001111111001
3	Ternary	1102220201222200
4	Quaternary	1032321033321
5	Quinary	20243303341
6	Senary	2015140413
8	Octal	116711771
10	Decimal	20681721
12	Duodecimal	6b14709
16	Hexadecimal	13b93f9
20	Vigesimal	695461
36	Base36	cba49

Cryptographic Hash Functions

md5	fbb2aeb5309cab60a990ef59056effcf
sha1	bf63a1eeeb24422216876eef6bdeba50c31496bf
sha256	2b926121270ca96769893c78615cbcf1191266351771e41f4ad3b3070eb1f449
sha512	5abce3c1c803c79f6b2a8675802c8273992ff716e02a8e124544744c9b4ff337fedb13115f2c3ba5cc9e7f990a64661b5b96b9969ea681cc6fa74e33674d2e67
ripemd-160	31fb426ec32f3dad63eac5de16f86f6dfe28e993

20681721 as geometric shapes

Circle

Radius = n

Diameter	41363442
Circumference	129947085.51439
Area	1.3437646836859E+15

Sphere

Radius = n

Volume	3.7055155036859E+22
Surface area	5.3750587347434E+15
Circumference	129947085.51439

Square

Length = n

Perimeter	82726884
Area	427733583521841
Diagonal	29248370.331416

Cube

Length = n

Surface area	2566401501131046
Volume	8.8462666367289E+21
Space diagonal	35821791.559964

Equilateral Triangle

Length = n

Perimeter	62045163
Area	1.8521407469083E+14
Altitude	17910895.779982

Triangular Pyramid

Length = n

Surface area	1.8521407469083E+14
Volume	1.0425425211692E+21
Height	9749456.7771388