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

20991689 (number)

20991689 is an odd 8-digits composite number following 20991688 and preceding 20991690. In scientific notation, it is written as 2.0991689 × 10^7. The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors. There are 20927940 positive integers (up to 20991689) that are relatively prime to 20991689.

Interesting facts

20991689 has 4 divisors, whose sum is 21055440
The reverse of 20991689 is 98619902
Previous prime number is 331

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	twenty million nine hundred ninety-one thousand six hundred eighty-nine

Notation

Scientific notation	2.0991689 × 10^7
Engineering notation	2.0991689 × 10^6

Prime Factorization of 20991689

Prime Factorization 331 × 63419

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20991689	Product of the distinct prime numbers

The prime factorization of 20991689 is 331 × 63419. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 7, 69, 25, 317, 535, 3242, 3957, 16410, 31165, 581777, 687994, 984649, 1098790, 84010719, 63563375, 69958904, 226601786, 6146787668, 8435421352

Basic calculations (n = 20991689)

Multiplication

n×y

n×2	41983378
n×3	62975067
n×4	83966756
n×5	104958445

Division

n÷y

n÷2	10495844.5
n÷3	6997229.6666667
n÷3	5247922.25
n÷5	4198337.8

Exponentiation

n^y

n²	440651007072721
n³	9.2500088980074E+21
n⁴	1.941733100342E+29
n⁵	4.0760257363386E+36

Nth Root

^y√n

²√n	4581.6688007755
³√n	275.85601693278
⁴√n	67.688025534621
⁵√n	29.134627962838

Divisors of 20991689

1, 331, 63419, 20991689

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	-20991688	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 20991689 can be divided by 4 positive divisors. The sum of these divisors (counting 20991689) is 1, the average is 0.25.

Base conversion 20991689

Base	System	Value
2	Binary	1010000000100111011001001
3	Ternary	1110111111011222
4	Quaternary	1100010323021
5	Quinary	20333213224
6	Senary	2025531425
8	Octal	120047311
10	Decimal	20991689
12	Duodecimal	7043b75
16	Hexadecimal	1404ec9
20	Vigesimal	6b3j49
36	Base36	chxah

Cryptographic Hash Functions

md5	c7e372a1dc62f8f28410ee255a4002fb
sha1	3f29e1047c843951c3583cc27fb120959bd0470c
sha256	3f2aed33e69fc55b8705c99c709a36e312f05c4a7ce76c392a9a5c46fe7c811c
sha512	beda6950568d33610b9d33a9d2878b284f59d4a4818a37bebd5f14d0a4701c5a13149f392e369870f1c838fa00675fbe9df1c23fa6add859848684c979c849b7
ripemd-160	7163f0972ee8740f86306e28b86f2221d59e71a2

20991689 as geometric shapes

Circle

Radius = n

Diameter	41983378
Circumference	131894671.89768
Area	1.3843459666166E+15

Sphere

Radius = n

Volume	3.874634666616E+22
Surface area	5.5373838664664E+15
Circumference	131894671.89768

Square

Length = n

Perimeter	83966756
Area	440651007072721
Diagonal	29686731.280918

Cube

Length = n

Surface area	2643906042436326
Volume	9.2500088980074E+21
Space diagonal	36358671.884685

Equilateral Triangle

Length = n

Perimeter	62975067
Area	1.9080748316409E+14
Altitude	18179335.942342

Triangular Pyramid

Length = n

Surface area	1.9080748316409E+14
Volume	1.0901240029695E+21
Height	9895577.0936394