Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

1998981 (number)

1998981 is an odd 7-digits composite number following 1998980 and preceding 1998982. In scientific notation, it is written as 1.998981 × 10^6. The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors. There are 1332648 positive integers (up to 1998981) that are relatively prime to 1998981.

Interesting facts

1998981 has 4 divisors, whose sum is 2221100
The reverse of 1998981 is 1898991
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 7
Sum of Digits 45
Digital Root 9

Name

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

Notation

Scientific notation	1.998981 × 10^6
Engineering notation	1.998981 × 10^6

Prime Factorization of 1998981

Prime Factorization 9 × 222109

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	1998981	Product of the distinct prime numbers

The prime factorization of 1998981 is 9 × 222109. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 9, 44, 52, 475, 344, 9083, 8177, 59395, 84329, 586366, 213294, 7024461, 5826494, 16777160, 16629216, 829017931, 298435442, 2146546564, 9508292797

Basic calculations (n = 1998981)

Multiplication

n×y

n×2	3997962
n×3	5996943
n×4	7995924
n×5	9994905

Division

n÷y

n÷2	999490.5
n÷3	666327
n÷3	499745.25
n÷5	399796.2

Exponentiation

n^y

n²	3995925038361
n³	7987778229107910141
n⁴	1.59674169122E+25
n⁵	3.1918563026567E+31

Nth Root

^y√n

²√n	1413.8532455669
³√n	125.97070369526
⁴√n	37.6012399472
⁵√n	18.203786497142

Divisors of 1998981

1, 9, 222109, 1998981

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	-1998980	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 1998981 can be divided by 4 positive divisors. The sum of these divisors (counting 1998981) is 1, the average is 0.25.

Base conversion 1998981

Base	System	Value
2	Binary	111101000000010000101
3	Ternary	10202120002100
4	Quaternary	13220002011
5	Quinary	1002431411
6	Senary	110502313
8	Octal	7500205
10	Decimal	1998981
12	Duodecimal	804999
16	Hexadecimal	1e8085
20	Vigesimal	c9h91
36	Base36	16uf9

Cryptographic Hash Functions

md5	a316c0936b862358fb9942d86af6c92e
sha1	fa8262f21f8f68270ae0f9b17799ffc8771833ab
sha256	78abc5f4433ec1faf704d5c4bbda0f659fc910fcc8c5a28eaa065d431c1408bb
sha512	cb6da732aea1d7554669518d7938c1fc78389d4067055810519aadff5082cf9f19d8d040375c4ce8fedad22c0ccda46d2f4a4627ad029521925e690cd41cd9d8
ripemd-160	adf3e5727cf6ac64a6083fe7970204e1a24232b5

1998981 as geometric shapes

Circle

Radius = n

Diameter	3997962
Circumference	12559968.048531
Area	12553568744810

Sphere

Radius = n

Volume	3.3459127204093E+19
Surface area	50214274979242
Circumference	12559968.048531

Square

Length = n

Perimeter	7995924
Area	3995925038361
Diagonal	2826986.0411261

Cube

Length = n

Surface area	23975550230166
Volume	7987778229107910141
Space diagonal	3462336.6553648

Equilateral Triangle

Length = n

Perimeter	5996943
Area	1730286297419.5
Altitude	1731168.3276824

Triangular Pyramid

Length = n

Surface area	1730286297419.5
Volume	9.4136869206941E+17
Height	942328.68037538