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

21081493 (number)

21081493 is an odd 8-digits prime number following 21081492 and preceding 21081494. In scientific notation, it is written as 2.1081493 × 10^7. The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors. There are 21081492 positive integers (up to 21081493) that are relatively prime to 21081493.

Interesting facts

21081493 has 2 divisors, whose sum is 21081494
The reverse of 21081493 is 39418012
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	twenty-one million eighty-one thousand four hundred ninety-three

Notation

Scientific notation	2.1081493 × 10^7
Engineering notation	2.1081493 × 10^6

Prime Factorization of 21081493

Prime Factorization 21081493

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21081493	Product of the distinct prime numbers

The prime factorization of 21081493 is 21081493. Since it has a total of 1 prime factors.

Most popular turbo-numbers

1, 7, 62, 60, 954, 703, 172, 6905, 98127, 1462, 66070, 266489, 2137031, 6103209, 56270140, 10518183, 444166025, 120691892, 1700152739, 8331455641

Basic calculations (n = 21081493)

Multiplication

n×y

n×2	42162986
n×3	63244479
n×4	84325972
n×5	105407465

Division

n÷y

n÷2	10540746.5
n÷3	7027164.3333333
n÷3	5270373.25
n÷5	4216298.6

Exponentiation

n^y

n²	444429347109049
n³	9.369234170074E+21
n⁴	1.9751744457178E+29
n⁵	4.1639626251178E+36

Nth Root

^y√n

²√n	4591.4587006745
³√n	276.24883478553
⁴√n	67.760303280568
⁵√n	29.159513433617

Divisors of 21081493

1, 21081493

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21081494	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10540747	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4591.4588095724	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999051301	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21081493 can be divided by 2 positive divisors. The sum of these divisors (counting 21081493) is 21081494, the average is 10540747.

Base conversion 21081493

Base	System	Value
2	Binary	1010000011010110110010101
3	Ternary	1110200001101001
4	Quaternary	1100122312111
5	Quinary	20344101433
6	Senary	2031503301
8	Octal	120326625
10	Decimal	21081493
12	Duodecimal	7087b31
16	Hexadecimal	141ad95
20	Vigesimal	6bf3ed
36	Base36	cjul1

Cryptographic Hash Functions

md5	c16f48104e4d6623dcd554eff0f37465
sha1	61a5a8d464b19fb2cf8612b2deadfefc11093fee
sha256	9bd7c8e047923cb921f3a800464392a10db46aa9e93d44298559eb47cd2dea77
sha512	bdbd67b48e8c17f38b034d323ea77b8a3633176cc69c977190050d19928f72cbe45e25a1d95628709b50c82658db348c1ab0149000a5c1141050b92be94f7ef4
ripemd-160	26d87bd4090018ec7760c90028795728d98a3366

21081493 as geometric shapes

Circle

Radius = n

Diameter	42162986
Circumference	132458927.07101
Area	1.3962159719175E+15

Sphere

Radius = n

Volume	3.9245756317956E+22
Surface area	5.58486388767E+15
Circumference	132458927.07101

Square

Length = n

Perimeter	84325972
Area	444429347109049
Diagonal	29813733.315673

Cube

Length = n

Surface area	2666576082654294
Volume	9.369234170074E+21
Space diagonal	36514216.975408

Equilateral Triangle

Length = n

Perimeter	63244479
Area	1.9244355239188E+14
Altitude	18257108.487704

Triangular Pyramid

Length = n

Surface area	1.9244355239188E+14
Volume	1.1041748360307E+21
Height	9937911.1052245