21285812 (number)

21285812 is an even 8-digits composite number following 21285811 and preceding 21285813. In scientific notation, it is written as 2.1285812 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors. There are 10624320 positive integers (up to 21285812) that are relatively prime to 21285812.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred eighty-five thousand eight hundred twelve

Notation

Scientific notation 2.1285812 × 10^7
Engineering notation 2.1285812 × 10^6

Prime Factorization of 21285812

Prime Factorization 2 × 2 × 613 × 8681

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10642906
Product of the distinct prime numbers

The prime factorization of 21285812 is 2 × 2 × 613 × 8681. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 2, 10, 37, 715, 885, 2942, 1360, 38392, 29358, 508266, 358160, 4890603, 3967288, 26183307, 16589975, 454130181, 612780508, 4915932232, 4815927566

Basic calculations (n = 21285812)

Multiplication

n×y
n×2 42571624
n×3 63857436
n×4 85143248
n×5 106429060

Division

n÷y
n÷2 10642906
n÷3 7095270.6666667
n÷3 5321453
n÷5 4257162.4

Exponentiation

ny
n2 453085792499344
n3 9.644298999012E+21
n4 2.0528673536476E+29
n5 4.369694855068E+36

Nth Root

y√n
2√n 4613.6549502536
3√n 277.13842256391
4√n 67.923890865097
5√n 29.215817595645

Divisors of 21285812

1, 2, 4, 613, 1226, 2452, 8681, 17362, 34724, 5321453, 10642906, 21285812

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21285811
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21285812 can be divided by 12 positive divisors. The sum of these divisors (counting 21285812) is 1, the average is 0.083333333333333.

Base conversion 21285812

Base System Value
2 Binary 1010001001100101110110100
3 Ternary 1111001102122102
4 Quaternary 1101030232310
5 Quinary 20422121222
6 Senary 2040121232
8 Octal 121145664
10 Decimal 21285812
12 Duodecimal 7166218
16 Hexadecimal 144cbb4
20 Vigesimal 6d0eac
36 Base36 co88k

Cryptographic Hash Functions

md5 e6dc22145478937dab814fa9300e0a97
sha1 8b59341482b832f672cbc4891623589a248de379
sha256 284bc29190a872a893c9320957b3461ae4a779b44aefacab8e579161292f04c7
sha512 3551fcd4fae77d3a71f15fb6a30121f157bd0a8462ad11697b04a06859cd922e7863f0bcebfa21166869894d28e73b583fedad2b5df2c3feaba7d6278339e667
ripemd-160 c9a2a4bd060129ef53cb96617bd55eba905c1a29

21285812 as geometric shapes

Circle

Radius = n
Diameter 42571624
Circumference 133742701.20979
Area 1.4234109971618E+15

Sphere

Radius = n
Volume 4.0397945179093E+22
Surface area 5.6936439886474E+15
Circumference 133742701.20979

Square

Length = n
Perimeter 85143248
Area 453085792499344
Diagonal 30102684.016524

Cube

Length = n
Surface area 2718514754996064
Volume 9.644298999012E+21
Space diagonal 36868107.864359

Equilateral Triangle

Length = n
Perimeter 63857436
Area 1.9619190319912E+14
Altitude 18434053.93218

Triangular Pyramid

Length = n
Surface area 1.9619190319912E+14
Volume 1.1365915369987E+21
Height 10034228.005508