21082812 (number)

21082812 is an even 8-digits composite number following 21082811 and preceding 21082813. In scientific notation, it is written as 2.1082812 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 12 positive divisors. There are 6721968 positive integers (up to 21082812) that are relatively prime to 21082812.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1082812 × 10^7
Engineering notation 2.1082812 × 10^6

Prime Factorization of 21082812

Prime Factorization 2 × 2 × 69 × 76387

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10541406
Product of the distinct prime numbers

The prime factorization of 21082812 is 2 × 2 × 69 × 76387. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 5, 46, 76, 692, 435, 697, 5861, 76332, 1409, 67636, 479351, 4195768, 5136703, 54883678, 99145347, 987183360, 463909918, 855860304, 9867454746

Basic calculations (n = 21082812)

Multiplication

n×y
n×2 42165624
n×3 63248436
n×4 84331248
n×5 105414060

Division

n÷y
n÷2 10541406
n÷3 7027604
n÷3 5270703
n÷5 4216562.4

Exponentiation

ny
n2 444484961827344
n3 9.3709928870331E+21
n4 1.9756688129066E+29
n5 4.1652654156772E+36

Nth Root

y√n
2√n 4591.6023346976
3√n 276.25459599378
4√n 67.761363140787
5√n 29.159878307544

Divisors of 21082812

1, 2, 4, 69, 138, 276, 76387, 152774, 305548, 5270703, 10541406, 21082812

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 -21082811
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 21082812 can be divided by 12 positive divisors. The sum of these divisors (counting 21082812) is 1, the average is 0.083333333333333.

Base conversion 21082812

Base System Value
2 Binary 1010000011011001010111100
3 Ternary 1110200010011220
4 Quaternary 1100123022330
5 Quinary 20344122222
6 Senary 2031513340
8 Octal 120331274
10 Decimal 21082812
12 Duodecimal 7088850
16 Hexadecimal 141b2bc
20 Vigesimal 6bf70c
36 Base36 cjvlo

Cryptographic Hash Functions

md5 e44dace8a82501787b793d26634d7964
sha1 4f14e02c2564fb04c3e353c139b7866c3a562e75
sha256 9e1cae4428aabbd3a1f7339fdc19b35197d53d42759c397f80bad0c11b4413a4
sha512 228d888467494039d0ecf7ba2fff42dfc9eef91ed476d4aa3196c91a208cf14934b138f1e4648a969b6d255fa2be762426b39ce307b2342f04d0d9448a1bf69f
ripemd-160 8db2b3c60566f60f2df61c424958c4c795180e0a

21082812 as geometric shapes

Circle

Radius = n
Diameter 42165624
Circumference 132467214.59243
Area 1.3963906907079E+15

Sphere

Radius = n
Volume 3.9253123214327E+22
Surface area 5.5855627628317E+15
Circumference 132467214.59243

Square

Length = n
Perimeter 84331248
Area 444484961827344
Diagonal 29815598.663362

Cube

Length = n
Surface area 2666909770964064
Volume 9.3709928870331E+21
Space diagonal 36516501.550423

Equilateral Triangle

Length = n
Perimeter 63248436
Area 1.9246763427132E+14
Altitude 18258250.775211

Triangular Pyramid

Length = n
Surface area 1.9246763427132E+14
Volume 1.104382102812E+21
Height 9938532.8877874