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

21081389 (number)

21081389 is an odd 8-digits composite number following 21081388 and preceding 21081390. In scientific notation, it is written as 2.1081389 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 18069756 positive integers (up to 21081389) that are relatively prime to 21081389.

Interesting facts

21081389 has 4 divisors, whose sum is 24093024
The reverse of 21081389 is 98318012
Previous prime number is 7

Basic properties

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

Name

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

Notation

Scientific notation	2.1081389 × 10^7
Engineering notation	2.1081389 × 10^6

Prime Factorization of 21081389

Prime Factorization 7 × 3011627

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21081389	Product of the distinct prime numbers

The prime factorization of 21081389 is 7 × 3011627. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 6, 14, 89, 14, 451, 3829, 3637, 61021, 41438, 653565, 675866, 8107568, 3015475, 88604127, 5698660, 916048686, 472709783, 433362855, 3262214343

Basic calculations (n = 21081389)

Multiplication

n×y

n×2	42162778
n×3	63244167
n×4	84325556
n×5	105406945

Division

n÷y

n÷2	10540694.5
n÷3	7027129.6666667
n÷3	5270347.25
n÷5	4216277.8

Exponentiation

n^y

n²	444424962169321
n³	9.3690955088017E+21
n⁴	1.975135469992E+29
n⁵	4.16385991706E+36

Nth Root

^y√n

²√n	4591.4473752837
³√n	276.2483805178
⁴√n	67.760219711006
⁵√n	29.159484663402

Divisors of 21081389

1, 7, 3011627, 21081389

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	-21081388	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 21081389 can be divided by 4 positive divisors. The sum of these divisors (counting 21081389) is 1, the average is 0.25.

Base conversion 21081389

Base	System	Value
2	Binary	1010000011010110100101101
3	Ternary	1110200001020012
4	Quaternary	1100122310231
5	Quinary	20344101024
6	Senary	2031503005
8	Octal	120326455
10	Decimal	21081389
12	Duodecimal	7087a65
16	Hexadecimal	141ad2d
20	Vigesimal	6bf399
36	Base36	cjui5

Cryptographic Hash Functions

md5	87deadadeb20946cd4f08744460208e7
sha1	2188aeabd4af4abf47f8170a39f4128562587baa
sha256	20b008d0f296bbef68aec81b1971741645b9f1077352f13370e3ad6df46a0e89
sha512	501a9cb1efb2fab2a02f14c7d11ad5a9c61e49d588074486312f5a8971d904115ac89d818c0873bdca5dedeb645dc99817c810d3b07600656765db9311aa9dab
ripemd-160	178f87e6023039605ce9bc4766fa308f0ef888a1

21081389 as geometric shapes

Circle

Radius = n

Diameter	42162778
Circumference	132458273.61974
Area	1.3962021962231E+15

Sphere

Radius = n

Volume	3.9245175494977E+22
Surface area	5.5848087848922E+15
Circumference	132458273.61974

Square

Length = n

Perimeter	84325556
Area	444424962169321
Diagonal	29813586.237463

Cube

Length = n

Surface area	2666549773015926
Volume	9.3690955088017E+21
Space diagonal	36514036.842124

Equilateral Triangle

Length = n

Perimeter	63244167
Area	1.9244165365729E+14
Altitude	18257018.421062

Triangular Pyramid

Length = n

Surface area	1.9244165365729E+14
Volume	1.104158494643E+21
Height	9937862.0791543