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

20981421 (number)

20981421 is an odd 8-digits composite number following 20981420 and preceding 20981422. In scientific notation, it is written as 2.0981421 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 13955976 positive integers (up to 20981421) that are relatively prime to 20981421.

Interesting facts

20981421 has 8 divisors, whose sum is 23365440
The reverse of 20981421 is 12418902
Previous prime number is 4787

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	twenty million nine hundred eighty-one thousand four hundred twenty-one

Notation

Scientific notation	2.0981421 × 10^7
Engineering notation	2.0981421 × 10^6

Prime Factorization of 20981421

Prime Factorization 9 × 4787 × 487

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20981421	Product of the distinct prime numbers

The prime factorization of 20981421 is 9 × 4787 × 487. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 5, 52, 66, 857, 598, 19, 7398, 23107, 44876, 915412, 864668, 6838740, 6547422, 43157436, 31994025, 951958208, 415433939, 9545589691, 1835940049

Basic calculations (n = 20981421)

Multiplication

n×y

n×2	41962842
n×3	62944263
n×4	83925684
n×5	104907105

Division

n÷y

n÷2	10490710.5
n÷3	6993807
n÷3	5245355.25
n÷5	4196284.2

Exponentiation

n^y

n²	440220027179241
n³	9.2364417228791E+21
n⁴	1.9379367232969E+29
n⁵	4.0660666262853E+36

Nth Root

^y√n

²√n	4580.5481113072
³√n	275.81103164454
⁴√n	67.679746684715
⁵√n	29.131777187855

Divisors of 20981421

1, 9, 487, 4383, 4787, 43083, 2331269, 20981421

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	-20981420	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 20981421 can be divided by 8 positive divisors. The sum of these divisors (counting 20981421) is 1, the average is 0.125.

Base conversion 20981421

Base	System	Value
2	Binary	1010000000010011010101101
3	Ternary	1110110222002200
4	Quaternary	1100002122231
5	Quinary	20332401141
6	Senary	2025412113
8	Octal	120023255
10	Decimal	20981421
12	Duodecimal	703a039
16	Hexadecimal	14026ad
20	Vigesimal	6b2db1
36	Base36	chpd9

Cryptographic Hash Functions

md5	d821bfa2b4320993769c8cea356a3429
sha1	8127a9e42ce247cfc010f9075671e08d4022d9da
sha256	278bc511fefd010acff4a500c2654451091d0f79e4a15d96f9c275ce06b526f5
sha512	f46e0caa58d62b2aed698604f4a984ec8cfb655f47af758b2792d4709d71c3425aad72e4468509b2b997e7950720cdacc6b1ffc819c4bcd9d83164b3c30c0901
ripemd-160	3799a262e5a9cc6867993babde321df81f483457

20981421 as geometric shapes

Circle

Radius = n

Diameter	41962842
Circumference	131830156.15095
Area	1.3829920033494E+15

Sphere

Radius = n

Volume	3.8689516615876E+22
Surface area	5.5319680133976E+15
Circumference	131830156.15095

Square

Length = n

Perimeter	83925684
Area	440220027179241
Diagonal	29672210.13606

Cube

Length = n

Surface area	2641320163075446
Volume	9.2364417228791E+21
Space diagonal	36340887.186993

Equilateral Triangle

Length = n

Perimeter	62944263
Area	1.9062086339595E+14
Altitude	18170443.593496

Triangular Pyramid

Length = n

Surface area	1.9062086339595E+14
Volume	1.088525096047E+21
Height	9890736.7120199