18442821 (number)

18442821 is an odd 8-digits composite number following 18442820 and preceding 18442822. In scientific notation, it is written as 1.8442821 × 10^7. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 12295212 positive integers (up to 18442821) that are relatively prime to 18442821.

Interesting facts

Basic properties

Name

Name eighteen million four hundred forty-two thousand eight hundred twenty-one

Notation

Scientific notation 1.8442821 × 10^7
Engineering notation 1.8442821 × 10^6

Prime Factorization of 18442821

Prime Factorization 3 × 6147607

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18442821
Product of the distinct prime numbers

The prime factorization of 18442821 is 3 × 6147607. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18442821)

Multiplication

n×y
n×2 36885642
n×3 55328463
n×4 73771284
n×5 92214105

Division

n÷y
n÷2 9221410.5
n÷3 6147607
n÷3 4610705.25
n÷5 3688564.2

Exponentiation

ny
n2 340137646438041
n3 6.2730977286181E+21
n4 1.1569361852441E+29
n5 2.133716697288E+36

Nth Root

y√n
2√n 4294.510565827
3√n 264.20586273119
4√n 65.532515332673
5√n 28.390005079619

Divisors of 18442821

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 -18442820
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 18442821 can be divided by 4 positive divisors. The sum of these divisors (counting 18442821) is 1, the average is 0.25.

Base conversion 18442821

Base System Value
2 Binary 1000110010110101001000101
3 Ternary 1021200222210110
4 Quaternary 1012112221011
5 Quinary 14210132241
6 Senary 1455143233
8 Octal 106265105
10 Decimal 18442821
12 Duodecimal 6214b19
16 Hexadecimal 1196a45
20 Vigesimal 5f5711
36 Base36 azakl

Cryptographic Hash Functions

md5 6f12c6470fab27620c02740f68be1898
sha1 84283cb447cc3cf1814a43fec594e95b2308dc24
sha256 e6439645ec2b7b82e5fde22047b5273168932562783b5754ceb6e11942b0d002
sha512 6d47d06a43393055d6934be181d2e3facfe1416a2ddc79fa822f1c4c31015ee471787d23a2a3b2466bf82ee147d921445c18f59b4c2e1a7c64d81964ab864b3e
ripemd-160 868f0475a2950a5a39740ee8fc79327505d757e6

18442821 as geometric shapes

Circle

Radius = n
Diameter 36885642
Circumference 115879661.93014
Area 1.0685739312591E+15

Sphere

Radius = n
Volume 2.6276690319303E+22
Surface area 4.2742957250363E+15
Circumference 115879661.93014

Square

Length = n
Perimeter 73771284
Area 340137646438041
Diagonal 26082087.586619

Cube

Length = n
Surface area 2040825878628246
Volume 6.2730977286181E+21
Space diagonal 31943903.006898

Equilateral Triangle

Length = n
Perimeter 55328463
Area 1.472839212994E+14
Altitude 15971951.503449

Triangular Pyramid

Length = n
Surface area 1.472839212994E+14
Volume 7.3929165715863E+20
Height 8694029.1955398