Math question: What is the largest prime factor of the number 1998?

To find the largest prime factor of 1998, decompose it into prime factors: 1998 = 2 × 3 × 3 × 3 × 37. Thus, the prime factors are 2, 3, and 37. The largest prime factor is 37.

Math question: What is the sum of the digits of the number 1998?

To find the sum of the digits in the number 1998, we simply add each digit together. The first digit is 1, the second is 9, the third is 9, and the fourth is 8. Adding these digits together, we have 1 + 9 + 9 + 8 = 27. So, the sum of the digits in the number 1998 is 27.

Math Question: What is the largest prime factor of the number 1998?

To find the largest prime factor of 1998, we can start by finding the prime factors of 1998. The prime factorization of 1998 is 2 × 3^3 × 37. Therefore, the largest prime factor of 1998 is 37.

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

1998 (number)

1998 is an even 4-digits composite number following 1997 and preceding 1999. In scientific notation, it is written as 1.998 × 10^3. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 648 positive integers (up to 1998) that are relatively prime to 1998.

Interesting facts

1998 has 8 divisors, whose sum is 3192
The reverse of 1998 is 8991
Previous prime number is 27

Basic properties

Is Prime? no
Number parity even
Number length 4
Sum of Digits 27
Digital Root 9

Name

Name	one thousand nine hundred ninety-eight

Notation

Scientific notation	1.998 × 10^3
Engineering notation	1.998 × 10^3

Prime Factorization of 1998

Prime Factorization 2 × 27 × 37

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	1998	Product of the distinct prime numbers

The prime factorization of 1998 is 2 × 27 × 37. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 8, 26, 66, 289, 744, 4525, 7894, 56171, 11126, 787416, 114856, 9943134, 6431053, 9876639, 87321885, 386905627, 69268795, 1491463602, 1644030766

Basic calculations (n = 1998)

Multiplication

n×y

n×2	3996
n×3	5994
n×4	7992
n×5	9990

Division

n÷y

n÷2	999
n÷3	666
n÷3	499.5
n÷5	399.6

Exponentiation

n^y

n²	3992004
n³	7976023992
n⁴	15936095936016
n⁵	31840319680159968

Nth Root

^y√n

²√n	44.698993277254
³√n	12.595009361425
⁴√n	6.6857305716918
⁵√n	4.5721355431057

Divisors of 1998

1, 2, 27, 37, 54, 74, 999, 1998

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	-1997	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 1998 can be divided by 8 positive divisors. The sum of these divisors (counting 1998) is 1, the average is 0.125.

Base conversion 1998

Base	System	Value
2	Binary	11111001110
3	Ternary	2202000
4	Quaternary	133032
5	Quinary	30443
6	Senary	13130
8	Octal	3716
10	Decimal	1998
12	Duodecimal	11a6
16	Hexadecimal	7ce
20	Vigesimal	4ji
36	Base36	1ji

Cryptographic Hash Functions

md5	c5b2cebf15b205503560c4e8e6d1ea78
sha1	3c4a80dbdfac57d174d1cab8d11d03ad91888820
sha256	d54123de468bd42ea00dafbd777f85fe5fa1ff6404d9838c007953c25c92a1c5
sha512	a84977b28cd7a12b34216277e8137326ab641154bd605518cea4502b37f47c44dcdb19b711be73d036471aef8f69d19341c07adf60dbed7a3f60b887362990ee
ripemd-160	d949911530332851b14e565822ebd27d42402a9c

1998 as geometric shapes

Circle

Radius = n

Diameter	3996
Circumference	12553.804243745
Area	12541250.439501

Sphere

Radius = n

Volume	33409891170.831
Surface area	50165001.758004
Circumference	12553.804243745

Square

Length = n

Perimeter	7992
Area	3992004
Diagonal	2825.5986976214

Cube

Length = n

Surface area	23952024
Volume	7976023992
Space diagonal	3460.6375135226

Equilateral Triangle

Length = n

Perimeter	5994
Area	1728588.4380045
Altitude	1730.3187567613

Triangular Pyramid

Length = n

Surface area	1728588.4380045
Volume	939983441.94163
Height	941.86623254048