21297730 (number)

21297730 is an even 8-digits composite number following 21297729 and preceding 21297731. In scientific notation, it is written as 2.1297730 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 8519088 positive integers (up to 21297730) that are relatively prime to 21297730.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred ninety-seven thousand seven hundred thirty

Notation

Scientific notation 2.1297730 × 10^7
Engineering notation 2.1297730 × 10^6

Prime Factorization of 21297730

Prime Factorization 2 × 5 × 2129773

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21297730
Product of the distinct prime numbers

The prime factorization of 21297730 is 2 × 5 × 2129773. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21297730)

Multiplication

n×y
n×2 42595460
n×3 63893190
n×4 85190920
n×5 106488650

Division

n÷y
n÷2 10648865
n÷3 7099243.3333333
n÷3 5324432.5
n÷5 4259546

Exponentiation

ny
n2 453593303152900
n3 9.6605077003586E+21
n4 2.0574688466516E+29
n5 4.3819415979397E+36

Nth Root

y√n
2√n 4614.9463702193
3√n 277.19013650165
4√n 67.933396575022
5√n 29.219088470708

Divisors of 21297730

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 -21297729
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 21297730 can be divided by 8 positive divisors. The sum of these divisors (counting 21297730) is 1, the average is 0.125.

Base conversion 21297730

Base System Value
2 Binary 1010001001111101001000010
3 Ternary 1111002000222211
4 Quaternary 1101033221002
5 Quinary 20423011410
6 Senary 2040252334
8 Octal 121175102
10 Decimal 21297730
12 Duodecimal 71710aa
16 Hexadecimal 144fa42
20 Vigesimal 6d246a
36 Base36 cohfm

Cryptographic Hash Functions

md5 db1d2294172240027c1f13ccac9c4cec
sha1 77a9ec339d2a8cb19afca8ae80069ce0bb60f4e6
sha256 40d944d73222dba8830bdf3ff0795360b088228ef3fa3b22414eedea712aac63
sha512 d3fd56478d0dee517342bfdae3f03d4333361c6fe815ce54370fbc67b71c63d44583e281a709a735de5de16c23a55404b84278ec2e3965caa55b0a56677b9c66
ripemd-160 01ae62ad5e2a54ae2a74d28756ad241882b5e913

21297730 as geometric shapes

Circle

Radius = n
Diameter 42595460
Circumference 133817584.21228
Area 1.4250053889027E+15

Sphere

Radius = n
Volume 4.0465840028526E+22
Surface area 5.7000215556107E+15
Circumference 133817584.21228

Square

Length = n
Perimeter 85190920
Area 453593303152900
Diagonal 30119538.61376

Cube

Length = n
Surface area 2721559818917400
Volume 9.6605077003586E+21
Space diagonal 36888750.445884

Equilateral Triangle

Length = n
Perimeter 63893190
Area 1.9641166175845E+14
Altitude 18444375.222942

Triangular Pyramid

Length = n
Surface area 1.9641166175845E+14
Volume 1.1385017507714E+21
Height 10039846.204587