1998918 (number)

1998918 is an even 7-digits composite number following 1998917 and preceding 1998919. In scientific notation, it is written as 1.998918 × 10^6. The sum of its digits is 45. It has a total of 6 prime factors and 32 positive divisors. There are 664848 positive integers (up to 1998918) that are relatively prime to 1998918.

Interesting facts

Basic properties

Name

Name one million nine hundred ninety-eight thousand nine hundred eighteen

Notation

Scientific notation 1.998918 × 10^6
Engineering notation 1.998918 × 10^6

Prime Factorization of 1998918

Prime Factorization 2 × 3 × 3 × 27 × 9 × 457

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 666306
Product of the distinct prime numbers

The prime factorization of 1998918 is 2 × 3 × 3 × 27 × 9 × 457. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 4, 64, 51, 204, 570, 9398, 6964, 7345, 22070, 340789, 369615, 7715395, 8229786, 5034369, 85958298, 1928145, 851168902, 3562755996, 3703580841

Basic calculations (n = 1998918)

Multiplication

n×y
n×2 3997836
n×3 5996754
n×4 7995672
n×5 9994590

Division

n÷y
n÷2 999459
n÷3 666306
n÷3 499729.5
n÷5 399783.6

Exponentiation

ny
n2 3995673170724
n3 7987023023077276632
n4 1.5965404087244E+25
n5 3.1913533607265E+31

Nth Root

y√n
2√n 1413.8309658513
3√n 125.96938031471
4√n 37.600943682989
5√n 18.203671753379

Divisors of 1998918

1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 457, 486, 729, 914, 1371, 1458, 2187, 2742, 4113, 4374, 8226, 12339, 24678, 37017, 74034, 111051, 222102, 333153, 666306, 999459, 1998918

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -1998917
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1998918 can be divided by 32 positive divisors. The sum of these divisors (counting 1998918) is 1, the average is 0.03125.

Base conversion 1998918

Base System Value
2 Binary 111101000000001000110
3 Ternary 10202120000000
4 Quaternary 13220001012
5 Quinary 1002431133
6 Senary 110502130
8 Octal 7500106
10 Decimal 1998918
12 Duodecimal 804946
16 Hexadecimal 1e8046
20 Vigesimal c9h5i
36 Base36 16udi

Cryptographic Hash Functions

md5 18fd00d32a861793a6a411e28e2cc44b
sha1 ff2d2b3596549238e56797f793a002322bc8681d
sha256 88c671f48f5dd779022660db83389661483530422b7ccbe916d3bd695d8d01c7
sha512 0cc333f1d401346dcd40c526dc3819ce9997061f7e9f2cd6603635624d57dbe7bf5ae5971cd9c6b1845b0f2ac0c561abeb2f01f61ce94a3bbf47f2fcb17b86b3
ripemd-160 b4a0036ef371e177dd2848e5a69b36ea89077e45

1998918 as geometric shapes

Circle

Radius = n
Diameter 3997836
Circumference 12559572.207857
Area 12552777479292

Sphere

Radius = n
Volume 3.3455963804469E+19
Surface area 50211109917169
Circumference 12559572.207857

Square

Length = n
Perimeter 7995672
Area 3995673170724
Diagonal 2826896.9456717

Cube

Length = n
Surface area 23974039024344
Volume 7987023023077276632
Space diagonal 3462227.536164

Equilateral Triangle

Length = n
Perimeter 5996754
Area 1730177235533.5
Altitude 1731113.768082

Triangular Pyramid

Length = n
Surface area 1730177235533.5
Volume 9.4127969018517E+17
Height 942298.98189057