1998945 (number)

1998945 is an odd 7-digits composite number following 1998944 and preceding 1998946. In scientific notation, it is written as 1.998945 × 10^6. The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors. There are 912384 positive integers (up to 1998945) that are relatively prime to 1998945.

Interesting facts

Basic properties

Name

Name one million nine hundred ninety-eight thousand nine hundred forty-five

Notation

Scientific notation 1.998945 × 10^6
Engineering notation 1.998945 × 10^6

Prime Factorization of 1998945

Prime Factorization 27 × 5 × 13 × 17 × 67

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1998945
Product of the distinct prime numbers

The prime factorization of 1998945 is 27 × 5 × 13 × 17 × 67. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 5, 6, 8, 157, 811, 465, 5991, 75395, 91266, 464340, 436851, 4176875, 4534676, 47294152, 11819553, 505024030, 7699372, 7288252566, 9391235122

Basic calculations (n = 1998945)

Multiplication

n×y
n×2 3997890
n×3 5996835
n×4 7995780
n×5 9994725

Division

n÷y
n÷2 999472.5
n÷3 666315
n÷3 499736.25
n÷5 399789

Exponentiation

ny
n2 3995781113025
n3 7987346676975758625
n4 1.5966266703207E+25
n5 3.1915688995043E+31

Nth Root

y√n
2√n 1413.8405143438
3√n 125.96994748121
4√n 37.601070654222
5√n 18.203720929632

Divisors of 1998945

1, 5, 13, 17, 27, 65, 67, 85, 135, 221, 335, 351, 459, 871, 1105, 1139, 1755, 1809, 2295, 4355, 5695, 5967, 9045, 14807, 23517, 29835, 30753, 74035, 117585, 153765, 399789, 1998945

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 -1998944
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 1998945 can be divided by 32 positive divisors. The sum of these divisors (counting 1998945) is 1, the average is 0.03125.

Base conversion 1998945

Base System Value
2 Binary 111101000000001100001
3 Ternary 10202120001000
4 Quaternary 13220001201
5 Quinary 1002431240
6 Senary 110502213
8 Octal 7500141
10 Decimal 1998945
12 Duodecimal 804969
16 Hexadecimal 1e8061
20 Vigesimal c9h75
36 Base36 16ue9

Cryptographic Hash Functions

md5 158ba8fc2329732a5d97aa423667f717
sha1 1566dba3845b9948f7ab0959d94fff813ae21aeb
sha256 4bb26f6c158566cbcc39ee6f9fd2a3928c8efe988cf0a2eaaa4dbc71384ba1d6
sha512 256a643bb3015ba10031e90d452c5cb389739ede2935a0af45edfffca266a35734de8df7e09894e59441e4ea57dd22ecf331c653fe8cde2162dd126b0e320ea4
ripemd-160 6d6551099e6f3c7440ccd63b63fee911a345f65e

1998945 as geometric shapes

Circle

Radius = n
Diameter 3997890
Circumference 12559741.85386
Area 12553116590032

Sphere

Radius = n
Volume 3.3457319522749E+19
Surface area 50212466360129
Circumference 12559741.85386

Square

Length = n
Perimeter 7995780
Area 3995781113025
Diagonal 2826935.1294379

Cube

Length = n
Surface area 23974686678150
Volume 7987346676975758625
Space diagonal 3462274.3015358

Equilateral Triangle

Length = n
Perimeter 5996835
Area 1730223975920.9
Altitude 1731137.1507679

Triangular Pyramid

Length = n
Surface area 1730223975920.9
Volume 9.413178331629E+17
Height 942311.70981263