2018991 (number)

2018991 is an odd 7-digits composite number following 2018990 and preceding 2018992. In scientific notation, it is written as 2.018991 × 10^6. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 1242432 positive integers (up to 2018991) that are relatively prime to 2018991.

Interesting facts

Basic properties

Name

Name two million eighteen thousand nine hundred ninety-one

Notation

Scientific notation 2.018991 × 10^6
Engineering notation 2.018991 × 10^6

Prime Factorization of 2018991

Prime Factorization 3 × 13 × 51769

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 2018991
Product of the distinct prime numbers

The prime factorization of 2018991 is 3 × 13 × 51769. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 2018991)

Multiplication

n×y
n×2 4037982
n×3 6056973
n×4 8075964
n×5 10094955

Division

n÷y
n÷2 1009495.5
n÷3 672997
n÷3 504747.75
n÷5 403798.2

Exponentiation

ny
n2 4076324658081
n3 8230062797743616271
n4 1.6616422718079E+25
n5 3.3548407919997E+31

Nth Root

y√n
2√n 1420.9120310561
3√n 126.389635393
4√n 37.694986815969
5√n 18.240085788036

Divisors of 2018991

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 -2018990
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 2018991 can be divided by 8 positive divisors. The sum of these divisors (counting 2018991) is 1, the average is 0.125.

Base conversion 2018991

Base System Value
2 Binary 111101100111010101111
3 Ternary 10210120112110
4 Quaternary 13230322233
5 Quinary 1004101431
6 Senary 111135103
8 Octal 7547257
10 Decimal 2018991
12 Duodecimal 814493
16 Hexadecimal 1eceaf
20 Vigesimal cc79b
36 Base36 179v3

Cryptographic Hash Functions

md5 ab18a0de775c80aa7ba7ce6158113dfd
sha1 1a4a6acd0b5cae4ceaa7d576e8927be22dc48df9
sha256 ea68e3096c8b032189514de4f2d185a934491d1c9800479b4ffc2c1ed8a29f77
sha512 1c9b3435e12983943c0c86e279d589bbde1d0690f0f76eafd941516d7fc8e9971a01f2e86708c24e4bfda1d514e8a617101dfe24b742abafd1a448cbaf6a81ae
ripemd-160 dfded0c8d29ece092febc9b646d53ab804a92472

2018991 as geometric shapes

Circle

Radius = n
Diameter 4037982
Circumference 12685694.586528
Area 12806151599474

Sphere

Radius = n
Volume 3.4474006431965E+19
Surface area 51224606397897
Circumference 12685694.586528

Square

Length = n
Perimeter 8075964
Area 4076324658081
Diagonal 2855284.4545092

Cube

Length = n
Surface area 24457947948486
Volume 8230062797743616271
Space diagonal 3496994.9920243

Equilateral Triangle

Length = n
Perimeter 6056973
Area 1765100353985.5
Altitude 1748497.4960121

Triangular Pyramid

Length = n
Surface area 1765100353985.5
Volume 9.6992220231261E+17
Height 951761.48483641