18485721 (number)

18485721 is an odd 8-digits composite number following 18485720 and preceding 18485722. In scientific notation, it is written as 1.8485721 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 11787864 positive integers (up to 18485721) that are relatively prime to 18485721.

Interesting facts

Basic properties

Name

Name eighteen million four hundred eighty-five thousand seven hundred twenty-one

Notation

Scientific notation 1.8485721 × 10^7
Engineering notation 1.8485721 × 10^6

Prime Factorization of 18485721

Prime Factorization 3 × 69 × 89303

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18485721
Product of the distinct prime numbers

The prime factorization of 18485721 is 3 × 69 × 89303. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18485721)

Multiplication

n×y
n×2 36971442
n×3 55457163
n×4 73942884
n×5 92428605

Division

n÷y
n÷2 9242860.5
n÷3 6161907
n÷3 4621430.25
n÷5 3697144.2

Exponentiation

ny
n2 341721880889841
n3 6.3169753497248E+21
n4 1.1677384387889E+29
n5 2.1586486980427E+36

Nth Root

y√n
2√n 4299.5024130706
3√n 264.41056125099
4√n 65.570591068486
5√n 28.403200453374

Divisors of 18485721

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 -18485720
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 18485721 can be divided by 8 positive divisors. The sum of these divisors (counting 18485721) is 1, the average is 0.125.

Base conversion 18485721

Base System Value
2 Binary 1000110100001000111011001
3 Ternary 1021210011122100
4 Quaternary 1012201013121
5 Quinary 14213020341
6 Senary 1500114013
8 Octal 106410731
10 Decimal 18485721
12 Duodecimal 6235909
16 Hexadecimal 11a11d9
20 Vigesimal 5fae61
36 Base36 b07o9

Cryptographic Hash Functions

md5 867f4630d6475bcc207f542b0096a0a0
sha1 593dffbc713c470a86d243377bb91379821928e2
sha256 bff7e0719fdb03a14cb68a3d7ed9701106ac912b3b669cf2a1e6b7058fb596bf
sha512 9a86cdef9157c9c43bb065ba8aa1aa62deabe58b0e201d559a49b8f89f5b4e88eb0d4986eb3d95d157b5000b2f78d745830e7c2af218ac3afba5400c50f61665
ripemd-160 ae8c56fb9150600f750b22d1b55a4450abdd1787

18485721 as geometric shapes

Circle

Radius = n
Diameter 36971442
Circumference 116149210.57982
Area 1.0735509505744E+15

Sphere

Radius = n
Volume 2.6460484468804E+22
Surface area 4.2942038022976E+15
Circumference 116149210.57982

Square

Length = n
Perimeter 73942884
Area 341721880889841
Diagonal 26142757.348445

Cube

Length = n
Surface area 2050331285339046
Volume 6.3169753497248E+21
Space diagonal 32018207.986543

Equilateral Triangle

Length = n
Perimeter 55457163
Area 1.479699149398E+14
Altitude 16009103.993271

Triangular Pyramid

Length = n
Surface area 1.479699149398E+14
Volume 7.4446268439645E+20
Height 8714252.4494817