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

20809749 (number)

20809749 is an odd 8-digits composite number following 20809748 and preceding 20809750. In scientific notation, it is written as 2.0809749 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 13849920 positive integers (up to 20809749) that are relatively prime to 20809749.

Interesting facts

20809749 has 8 divisors, whose sum is 27792832
The reverse of 20809749 is 94790802
Previous prime number is 631

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	twenty million eight hundred nine thousand seven hundred forty-nine

Notation

Scientific notation	2.0809749 × 10^7
Engineering notation	2.0809749 × 10^6

Prime Factorization of 20809749

Prime Factorization 3 × 631 × 10993

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20809749	Product of the distinct prime numbers

The prime factorization of 20809749 is 3 × 631 × 10993. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 10, 78, 17, 798, 980, 8094, 734, 40469, 49326, 852339, 529061, 4457801, 4355139, 76021922, 36255668, 732804282, 323022539, 974505239, 3776971274

Basic calculations (n = 20809749)

Multiplication

n×y

n×2	41619498
n×3	62429247
n×4	83238996
n×5	104048745

Division

n÷y

n÷2	10404874.5
n÷3	6936583
n÷3	5202437.25
n÷5	4161949.8

Exponentiation

n^y

n²	433045653443001
n³	9.0115713536898E+21
n⁴	1.8752853796588E+29
n⁵	3.9024218054068E+36

Nth Root

^y√n

²√n	4561.770380017
³√n	275.05673319857
⁴√n	67.540879325168
⁵√n	29.083948596106

Divisors of 20809749

1, 3, 631, 1893, 10993, 32979, 6936583, 20809749

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	-20809748	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 20809749 can be divided by 8 positive divisors. The sum of these divisors (counting 20809749) is 1, the average is 0.125.

Base conversion 20809749

Base	System	Value
2	Binary	1001111011000100000010101
3	Ternary	1110011020121110
4	Quaternary	1033120200111
5	Quinary	20311402444
6	Senary	2022005233
8	Octal	117304025
10	Decimal	20809749
12	Duodecimal	6b76819
16	Hexadecimal	13d8815
20	Vigesimal	6a1479
36	Base36	ce0wl

Cryptographic Hash Functions

md5	1236cf652a2f392bc14fc4ee48ee8f8f
sha1	fca5dd7742c49af9ba9b020831db5b0b7a1ff9d4
sha256	7bd789535f91a38b0fa69c61765fe3a2c72c8e521a9b95155a9c44161e0273b5
sha512	e04175ceab1ab6e1cf407e9714aa73a3d5a81a9cec98869934bd7931d13a78e7cd342e8b39bf93daf3629457cb9d2063c2d6efbb7a8d5cffb8fd5aa977265ae3
ripemd-160	a8b438661dee84393e4dd64b7100f16327b35087

20809749 as geometric shapes

Circle

Radius = n

Diameter	41619498
Circumference	130751509.1629
Area	1.3604530435255E+15

Sphere

Radius = n

Volume	3.774758181607E+22
Surface area	5.4418121741021E+15
Circumference	130751509.1629

Square

Length = n

Perimeter	83238996
Area	433045653443001
Diagonal	29429429.26538

Cube

Length = n

Surface area	2598273920658006
Volume	9.0115713536898E+21
Space diagonal	36043542.560756

Equilateral Triangle

Length = n

Perimeter	62429247
Area	1.8751426844004E+14
Altitude	18021771.280378

Triangular Pyramid

Length = n

Surface area	1.8751426844004E+14
Volume	1.0620238688901E+21
Height	9809809.7551267