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

20991290 (number)

20991290 is an even 8-digits composite number following 20991289 and preceding 20991291. In scientific notation, it is written as 2.0991290 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 8396512 positive integers (up to 20991290) that are relatively prime to 20991290.

Interesting facts

20991290 has 8 divisors, whose sum is 37784340
The reverse of 20991290 is 09219902
Previous prime number is 5

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	twenty million nine hundred ninety-one thousand two hundred ninety

Notation

Scientific notation	2.0991290 × 10^7
Engineering notation	2.0991290 × 10^6

Prime Factorization of 20991290

Prime Factorization 2 × 5 × 2099129

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20991290	Product of the distinct prime numbers

The prime factorization of 20991290 is 2 × 5 × 2099129. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 3, 86, 12, 928, 619, 1562, 6837, 79143, 78662, 859066, 972317, 6664817, 4627564, 47326977, 3617986, 803060206, 734707491, 174796872, 8257627486

Basic calculations (n = 20991290)

Multiplication

n×y

n×2	41982580
n×3	62973870
n×4	83965160
n×5	104956450

Division

n÷y

n÷2	10495645
n÷3	6997096.6666667
n÷3	5247822.5
n÷5	4198258

Exponentiation

n^y

n²	440634255864100
n³	9.2494814487775E+21
n⁴	1.9415854744091E+29
n⁵	4.0756383753109E+36

Nth Root

^y√n

²√n	4581.6252574823
³√n	275.8542691419
⁴√n	67.687703886912
⁵√n	29.134517206576

Divisors of 20991290

1, 2, 5, 10, 2099129, 4198258, 10495645, 20991290

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	-20991289	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 20991290 can be divided by 8 positive divisors. The sum of these divisors (counting 20991290) is 1, the average is 0.125.

Base conversion 20991290

Base	System	Value
2	Binary	1010000000100110100111010
3	Ternary	1110111110122012
4	Quaternary	1100010310322
5	Quinary	20333210130
6	Senary	2025525522
8	Octal	120046472
10	Decimal	20991290
12	Duodecimal	70438a2
16	Hexadecimal	1404d3a
20	Vigesimal	6b3i4a
36	Base36	chwze

Cryptographic Hash Functions

md5	230c982b0dc98c88f6d1fc28e0c685b7
sha1	2d2f65646af905044e6613eebb99e05fb58b9493
sha256	d5d376d678f1ff13f02f7ce019a8fd0c8bd489e33d87c2bdad722d527c7f4d44
sha512	61977db561dac5e0dbb16960d529cb5137650b6a1b3666e9363c0d39d6d605b693b2427cf8a849b22705bae34e07512b1e111ee07321638961921996e260ef0f
ripemd-160	3005b7a64f4d6576de1bb10d53be0960b45f75e0

20991290 as geometric shapes

Circle

Radius = n

Diameter	41982580
Circumference	131892164.90675
Area	1.3842933411427E+15

Sphere

Radius = n

Volume	3.8744137291993E+22
Surface area	5.5371733645706E+15
Circumference	131892164.90675

Square

Length = n

Perimeter	83965160
Area	440634255864100
Diagonal	29686167.009707

Cube

Length = n

Surface area	2643805535184600
Volume	9.2494814487775E+21
Space diagonal	36357980.796412

Equilateral Triangle

Length = n

Perimeter	62973870
Area	1.9080022967798E+14
Altitude	18178990.398206

Triangular Pyramid

Length = n

Surface area	1.9080022967798E+14
Volume	1.0900618424816E+21
Height	9895389.0032356