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

1998987 (number)

1998987 is an odd 7-digits composite number following 1998986 and preceding 1998988. In scientific notation, it is written as 1.998987 × 10^6. The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors. There are 1332656 positive integers (up to 1998987) that are relatively prime to 1998987.

Interesting facts

1998987 has 4 divisors, whose sum is 2665320
The reverse of 1998987 is 7898991
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 7
Sum of Digits 51
Digital Root 6

Name

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

Notation

Scientific notation	1.998987 × 10^6
Engineering notation	1.998987 × 10^6

Prime Factorization of 1998987

Prime Factorization 3 × 666329

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	1998987	Product of the distinct prime numbers

The prime factorization of 1998987 is 3 × 666329. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 8, 42, 61, 7, 545, 4097, 240, 21982, 92099, 47524, 750683, 8848352, 7491096, 20092678, 79255381, 407969149, 561535719, 6847820287, 4319712553

Basic calculations (n = 1998987)

Multiplication

n×y

n×2	3997974
n×3	5996961
n×4	7995948
n×5	9994935

Division

n÷y

n÷2	999493.5
n÷3	666329
n÷3	499746.75
n÷5	399797.4

Exponentiation

n^y

n²	3995949026169
n³	7987850155974490803
n⁴	1.5967608619741E+25
n⁵	3.191904205195E+31

Nth Root

^y√n

²√n	1413.8553674262
³√n	125.97082973005
⁴√n	37.601268162474
⁵√n	18.203797424968

Divisors of 1998987

1, 3, 666329, 1998987

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	-1998986	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 1998987 can be divided by 4 positive divisors. The sum of these divisors (counting 1998987) is 1, the average is 0.25.

Base conversion 1998987

Base	System	Value
2	Binary	111101000000010001011
3	Ternary	10202120002120
4	Quaternary	13220002023
5	Quinary	1002431422
6	Senary	110502323
8	Octal	7500213
10	Decimal	1998987
12	Duodecimal	8049a3
16	Hexadecimal	1e808b
20	Vigesimal	c9h97
36	Base36	16uff

Cryptographic Hash Functions

md5	d87a5f9c3a850797391a77458a5dd55b
sha1	cf57af3389ef3d45f57033425179bd8e38e04a08
sha256	7bb27879bc0fa0d718db3b00583d6b11c5e875199c6469f192864ef18cef8182
sha512	3c7ad4bef39be3f6cb03c58ccad8c1931ca31d510bff962e2b6ad9e960128c3aa1dde889deba9148b90e6e8c9ec5af0c8ce88f721d7bdb9dcf04d522489fc107
ripemd-160	eaf3c9b26fe3b97c1e4126799e02d9e1a96bf4e2

1998987 as geometric shapes

Circle

Radius = n

Diameter	3997974
Circumference	12560005.747643
Area	12553644104732

Sphere

Radius = n

Volume	3.3459428490647E+19
Surface area	50214576418927
Circumference	12560005.747643

Square

Length = n

Perimeter	7995948
Area	3995949026169
Diagonal	2826994.5264075

Cube

Length = n

Surface area	23975694157014
Volume	7987850155974490803
Space diagonal	3462347.0476697

Equilateral Triangle

Length = n

Perimeter	5996961
Area	1730296684445
Altitude	1731173.5238348

Triangular Pyramid

Length = n

Surface area	1730296684445
Volume	9.4137716873193E+17
Height	942331.5088025