Math Question: Consider the number 1980. If we multiply it by 6 and then subtract 120, what is the result after dividing it by 2 and adding 80?

To find the result, let's follow the steps. Multiply 1980 by 6 to get 11,880. Then subtract 120 to obtain 11,760. Divide this result by 2, giving us 5880. Finally, adding 80 yields the final answer of 5,960. Therefore, after multiplying 1980 by 6, subtracting 120, dividing by 2, and adding 80, the final result is 5,960.

What is the sum of all the prime numbers between 1980 and 2000?

To find the sum of prime numbers between 1980 and 2000, we list all the numbers in this range: 1981, 1983, 1987, 1993, 1997, and 1999. By calculating the sum, we get 1981 + 1983 + 1987 + 1993 + 1997 + 1999 = 11,060. So, the sum of prime numbers between 1980 and 2000 is 11,060.

Math question: What is the sum of all the prime numbers between 1980 and 2000?

To find the sum of prime numbers between 1980 and 2000, we need to identify the prime numbers within this range and then add them up. Prime numbers between 1980 and 2000 include: 1987, 1993, 1997. Adding these prime numbers together, we get 1987 + 1993 + 1997 = 5977. Therefore, the sum of prime numbers between 1980 and 2000 is 5977.

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

1980 (number)

1980 is an even 4-digits composite number following 1979 and preceding 1981. In scientific notation, it is written as 1.980 × 10^3. The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors. There are 480 positive integers (up to 1980) that are relatively prime to 1980.

Interesting facts

1980 has 12 divisors, whose sum is 3864
The reverse of 1980 is 0891
Previous prime number is 45

Basic properties

Is Prime? no
Number parity even
Number length 4
Sum of Digits 18
Digital Root 9

Name

Name	one thousand nine hundred eighty

Notation

Scientific notation	1.980 × 10^3
Engineering notation	1.980 × 10^3

Prime Factorization of 1980

Prime Factorization 2 × 2 × 45 × 11

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	990	Product of the distinct prime numbers

The prime factorization of 1980 is 2 × 2 × 45 × 11. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 86, 96, 455, 221, 8202, 2269, 23270, 78510, 561415, 668551, 8464385, 6720783, 62418786, 2156685, 229092980, 723879026, 9436004264, 1012292827

Basic calculations (n = 1980)

Multiplication

n×y

n×2	3960
n×3	5940
n×4	7920
n×5	9900

Division

n÷y

n÷2	990
n÷3	660
n÷3	495
n÷5	396

Exponentiation

n^y

n²	3920400
n³	7762392000
n⁴	15369536160000
n⁵	30431681596800000

Nth Root

^y√n

²√n	44.497190922574
³√n	12.557072356439
⁴√n	6.6706214794855
⁵√n	4.5638676127758

Divisors of 1980

1, 2, 4, 11, 22, 44, 45, 90, 180, 495, 990, 1980

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-1979	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1980 can be divided by 12 positive divisors. The sum of these divisors (counting 1980) is 1, the average is 0.083333333333333.

Base conversion 1980

Base	System	Value
2	Binary	11110111100
3	Ternary	2201100
4	Quaternary	132330
5	Quinary	30410
6	Senary	13100
8	Octal	3674
10	Decimal	1980
12	Duodecimal	1190
16	Hexadecimal	7bc
20	Vigesimal	4j0
36	Base36	1j0

Cryptographic Hash Functions

md5	f80bf05527157a8c2a7bb63b22f49aaa
sha1	09bc328680cd1c655a5774ac7561c96e7f93b42c
sha256	051c2e380d07844ffaca43743957f8c0efe2bdf74c6c1e6a9dcccb8d1a3c596b
sha512	9513eb867cbbee254ae2f8573479b5497910d5314dfeb9e466fd4227c985f49fd7a55153cb9638e82d7934c387ecfc83eaf0f77e004fb6a5d39119faabfd3979
ripemd-160	86efe3f59c59d755c77ec77950594ca28b2e4555

1980 as geometric shapes

Circle

Radius = n

Diameter	3960
Circumference	12440.706908216
Area	12316299.839133

Sphere

Radius = n

Volume	32515031575.312
Surface area	49265199.356534
Circumference	12440.706908216

Square

Length = n

Perimeter	7920
Area	3920400
Diagonal	2800.1428534987

Cube

Length = n

Surface area	23522400
Volume	7762392000
Space diagonal	3429.4605989864

Equilateral Triangle

Length = n

Perimeter	5940
Area	1697582.9964983
Altitude	1714.7302994932

Triangular Pyramid

Length = n

Surface area	1697582.9964983
Volume	914806670.23803
Height	933.38095116624