21351851 (number)

21351851 is an odd 8-digits composite number following 21351850 and preceding 21351852. In scientific notation, it is written as 2.1351851 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 21297672 positive integers (up to 21351851) that are relatively prime to 21351851.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred fifty-one thousand eight hundred fifty-one

Notation

Scientific notation 2.1351851 × 10^7
Engineering notation 2.1351851 × 10^6

Prime Factorization of 21351851

Prime Factorization 397 × 53783

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21351851
Product of the distinct prime numbers

The prime factorization of 21351851 is 397 × 53783. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 10, 23, 92, 427, 90, 1498, 2176, 89892, 4355, 524232, 316816, 3276895, 2989766, 37927908, 59110555, 750805289, 353823856, 4426337873, 3417636032

Basic calculations (n = 21351851)

Multiplication

n×y
n×2 42703702
n×3 64055553
n×4 85407404
n×5 106759255

Division

n÷y
n÷2 10675925.5
n÷3 7117283.6666667
n÷3 5337962.75
n÷5 4270370.2

Exponentiation

ny
n2 455901541126201
n3 9.734341776797E+21
n4 2.0784621520125E+29
n5 4.4379014178909E+36

Nth Root

y√n
2√n 4620.8063149195
3√n 277.42473298904
4√n 67.976512965285
5√n 29.233923491434

Divisors of 21351851

1, 397, 53783, 21351851

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 -21351850
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 21351851 can be divided by 4 positive divisors. The sum of these divisors (counting 21351851) is 1, the average is 0.25.

Base conversion 21351851

Base System Value
2 Binary 1010001011100110110101011
3 Ternary 1111011210020022
4 Quaternary 1101130312223
5 Quinary 20431224401
6 Senary 2041351055
8 Octal 121346653
10 Decimal 21351851
12 Duodecimal 719848b
16 Hexadecimal 145cdab
20 Vigesimal 6d8jcb
36 Base36 cpn6z

Cryptographic Hash Functions

md5 a10df2b481ce0462b81a41dc200e0287
sha1 c88b7efe44b440edc7c0f06e207237a5ca6f9c3a
sha256 95da30f84ffa97b069e6653d9a277f6587cdf034e8136034601a49f424eb96c9
sha512 995a796bc841f9c2255a735a70e3793a184c46da7bd65aecb010b43d0dbc45959cdef06ff170729d2bd6e767e3d18c9a66ac1788b521c88f939199d24da5f93a
ripemd-160 8d326b62ff80f0ca6e4a998a3636a84cdda2d388

21351851 as geometric shapes

Circle

Radius = n
Diameter 42703702
Circumference 134157636.48429
Area 1.4322569323623E+15

Sphere

Radius = n
Volume 4.077511548469E+22
Surface area 5.7290277294494E+15
Circumference 134157636.48429

Square

Length = n
Perimeter 85407404
Area 455901541126201
Diagonal 30196077.26597

Cube

Length = n
Surface area 2735409246757206
Volume 9.734341776797E+21
Space diagonal 36982490.76764

Equilateral Triangle

Length = n
Perimeter 64055553
Area 1.9741115811988E+14
Altitude 18491245.38382

Triangular Pyramid

Length = n
Surface area 1.9741115811988E+14
Volume 1.1472031801268E+21
Height 10065359.088657