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

20991289 (number)

20991289 is an odd 8-digits composite number following 20991288 and preceding 20991290. In scientific notation, it is written as 2.0991289 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 19082980 positive integers (up to 20991289) that are relatively prime to 20991289.

Interesting facts

20991289 has 4 divisors, whose sum is 22899600
The reverse of 20991289 is 98219902
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4

Name

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

Notation

Scientific notation	2.0991289 × 10^7
Engineering notation	2.0991289 × 10^6

Prime Factorization of 20991289

Prime Factorization 11 × 1908299

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20991289	Product of the distinct prime numbers

The prime factorization of 20991289 is 11 × 1908299. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 4, 18, 38, 738, 204, 4999, 8618, 15270, 4459, 734489, 769525, 765755, 4779803, 62801933, 24889948, 459415639, 675092284, 2091532387, 2546006558

Basic calculations (n = 20991289)

Multiplication

n×y

n×2	41982578
n×3	62973867
n×4	83965156
n×5	104956445

Division

n÷y

n÷2	10495644.5
n÷3	6997096.3333333
n÷3	5247822.25
n÷5	4198257.8

Exponentiation

n^y

n²	440634213881521
n³	9.2494801268748E+21
n⁴	1.9415851044299E+29
n⁵	4.0756374045182E+36

Nth Root

^y√n

²√n	4581.6251483507
³√n	275.85426476144
⁴√n	67.687703080772
⁵√n	29.13451692899

Divisors of 20991289

1, 11, 1908299, 20991289

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	-20991288	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 20991289 can be divided by 4 positive divisors. The sum of these divisors (counting 20991289) is 1, the average is 0.25.

Base conversion 20991289

Base	System	Value
2	Binary	1010000000100110100111001
3	Ternary	1110111110122011
4	Quaternary	1100010310321
5	Quinary	20333210124
6	Senary	2025525521
8	Octal	120046471
10	Decimal	20991289
12	Duodecimal	70438a1
16	Hexadecimal	1404d39
20	Vigesimal	6b3i49
36	Base36	chwzd

Cryptographic Hash Functions

md5	fc80b74a78378f6dd3eeb14c5cd7273b
sha1	54023030080bd1075b1bb49abe6e7adb4e47779e
sha256	5c5f7352d4a320a88856842e061d3e654e925e75f3f253e0c85acf30b649d433
sha512	bbd03c1dfc2f48fa901100c24bf65cdf76eb0a84811647eef6b24b12ece3e7a1626e5e9c904ec4489b8ad9986708b7465004f23c4c9d7814ff6ac9bb217c62b1
ripemd-160	69845fc365cdf95d3f1f14070e1126b10ea81104

20991289 as geometric shapes

Circle

Radius = n

Diameter	41982578
Circumference	131892158.62356
Area	1.3842932092505E+15

Sphere

Radius = n

Volume	3.874413175482E+22
Surface area	5.537172837002E+15
Circumference	131892158.62356

Square

Length = n

Perimeter	83965156
Area	440634213881521
Diagonal	29686165.595493

Cube

Length = n

Surface area	2643805283289126
Volume	9.2494801268748E+21
Space diagonal	36357979.064362

Equilateral Triangle

Length = n

Perimeter	62973867
Area	1.9080021149899E+14
Altitude	18178989.532181

Triangular Pyramid

Length = n

Surface area	1.9080021149899E+14
Volume	1.0900616866939E+21
Height	9895388.5318311