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

18821421 (number)

18821421 is an odd 8-digits composite number following 18821420 and preceding 18821422. In scientific notation, it is written as 1.8821421 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 12547608 positive integers (up to 18821421) that are relatively prime to 18821421.

Interesting facts

18821421 has 4 divisors, whose sum is 20912700
The reverse of 18821421 is 12412881
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	eighteen million eight hundred twenty-one thousand four hundred twenty-one

Notation

Scientific notation	1.8821421 × 10^7
Engineering notation	1.8821421 × 10^6

Prime Factorization of 18821421

Prime Factorization 9 × 2091269

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	18821421	Product of the distinct prime numbers

The prime factorization of 18821421 is 9 × 2091269. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 8, 61, 59, 266, 393, 1036, 863, 7323, 22793, 840459, 448594, 3572277, 5409339, 86175367, 52450155, 291491312, 858565365, 3816181186, 6955997807

Basic calculations (n = 18821421)

Multiplication

n×y

n×2	37642842
n×3	56464263
n×4	75285684
n×5	94107105

Division

n÷y

n÷2	9410710.5
n÷3	6273807
n÷3	4705355.25
n÷5	3764284.2

Exponentiation

n^y

n²	354245888459241
n³	6.6674110042104E+21
n⁴	1.2549014949028E+29
n⁵	2.3619029349094E+36

Nth Root

^y√n

²√n	4338.3661671187
³√n	266.00153107453
⁴√n	65.866274884182
⁵√n	28.505619372693

Divisors of 18821421

1, 9, 2091269, 18821421

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	-18821420	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 18821421 can be divided by 4 positive divisors. The sum of these divisors (counting 18821421) is 1, the average is 0.25.

Base conversion 18821421

Base	System	Value
2	Binary	1000111110011000100101101
3	Ternary	1022102020010200
4	Quaternary	1013303010231
5	Quinary	14304241141
6	Senary	1511224113
8	Octal	107630455
10	Decimal	18821421
12	Duodecimal	6378039
16	Hexadecimal	11f312d
20	Vigesimal	5hcdb1
36	Base36	b7ep9

Cryptographic Hash Functions

md5	44da1a30aa3797136ac7791389435c60
sha1	3579e38f0a6a12a38d3e5cb3ac8909a8b8c72e09
sha256	16d3744b51fa9612ce5fdee016d81bcd2c58e3721b93b4e8b1c884efc0eb9a0a
sha512	3b4b86914739c946a855f63e3b00f73de43dfa30b49abe83da2327687a4fd40e3716b5ee4676a3f85ca7fc28b9fda192aefc4bb9c4e242400cde032957b09039
ripemd-160	11b04a38f3d8d6c723c500c7327c9e27ec14d030

18821421 as geometric shapes

Circle

Radius = n

Diameter	37642842
Circumference	118258475.88744
Area	1.1128962807479E+15

Sphere

Radius = n

Volume	2.7928385905722E+22
Surface area	4.4515851229918E+15
Circumference	118258475.88744

Square

Length = n

Perimeter	75285684
Area	354245888459241
Diagonal	26617508.841334

Cube

Length = n

Surface area	2125475330755446
Volume	6.6674110042104E+21
Space diagonal	32599657.442644

Equilateral Triangle

Length = n

Perimeter	56464263
Area	1.5339296929595E+14
Altitude	16299828.721322

Triangular Pyramid

Length = n

Surface area	1.5339296929595E+14
Volume	7.8576192233917E+20
Height	8872502.9471113