18181641 (number)

18181641 is an odd 8-digits composite number following 18181640 and preceding 18181642. In scientific notation, it is written as 1.8181641 × 10^7. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 12121092 positive integers (up to 18181641) that are relatively prime to 18181641.

Interesting facts

Basic properties

Name

Name eighteen million one hundred eighty-one thousand six hundred forty-one

Notation

Scientific notation 1.8181641 × 10^7
Engineering notation 1.8181641 × 10^6

Prime Factorization of 18181641

Prime Factorization 3 × 6060547

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18181641
Product of the distinct prime numbers

The prime factorization of 18181641 is 3 × 6060547. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18181641)

Multiplication

n×y
n×2 36363282
n×3 54544923
n×4 72726564
n×5 90908205

Division

n÷y
n÷2 9090820.5
n÷3 6060547
n÷3 4545410.25
n÷5 3636328.2

Exponentiation

ny
n2 330572069452881
n3 6.0103426914193E+21
n4 1.0927789310236E+29
n5 1.9868514216235E+36

Nth Root

y√n
2√n 4263.9935506518
3√n 262.95273526925
4√n 65.299261486266
5√n 28.309136054533

Divisors of 18181641

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 -18181640
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 18181641 can be divided by 4 positive divisors. The sum of these divisors (counting 18181641) is 1, the average is 0.25.

Base conversion 18181641

Base System Value
2 Binary 1000101010110111000001001
3 Ternary 1021012201112010
4 Quaternary 1011112320021
5 Quinary 14123303031
6 Senary 1445410133
8 Octal 105267011
10 Decimal 18181641
12 Duodecimal 6109949
16 Hexadecimal 1156e09
20 Vigesimal 5dce21
36 Base36 atp1l

Cryptographic Hash Functions

md5 b5e17bf95598f1d0e06e3fa72886548a
sha1 9ac6d7173f2c80e8830499069d0b51ef67ab1c1e
sha256 de6a3dc0c972413d19a63fc79fabcb73d3d884578d3c22d705a172812f463b73
sha512 e999d7e86cc8f1212c73c22bd9abf58d1b35347ba85d5cbf28b594c1217b02fcce274809f414804dc9e7d3cdb3815dd23677f907be9920f6811cd86ea8537455
ripemd-160 a3d1cdf2482e0e1a908c2545dc9dd86e766ed22d

18181641 as geometric shapes

Circle

Radius = n
Diameter 36363282
Circumference 114238619.59161
Area 1.0385227848751E+15

Sphere

Radius = n
Volume 2.5176064593227E+22
Surface area 4.1540911395006E+15
Circumference 114238619.59161

Square

Length = n
Perimeter 72726564
Area 330572069452881
Diagonal 25712723.288399

Cube

Length = n
Surface area 1983432416717286
Volume 6.0103426914193E+21
Space diagonal 31491525.976977

Equilateral Triangle

Length = n
Perimeter 54544923
Area 1.4314190496389E+14
Altitude 15745762.988489

Triangular Pyramid

Length = n
Surface area 1.4314190496389E+14
Volume 7.083256790596E+20
Height 8570907.7627996