Math Question: John saved a certain amount of money every week for 3 years. If his total savings during this period amount to $1800, and he saved an equal amount every week, how much money did he save each week?

To find out how much John saved each week, we divide the total savings of $1800 by the number of weeks in 3 years. Since there are 52 weeks in a year and 3 years in the period, the total number of weeks is 52 * 3 = 156 weeks. Therefore, John saved $1800 ÷ 156 = $11.54 (rounded to two decimal places) per week on average.

Math Question: If I divide a number by 1000, add 36, multiply by 5, and then subtract 180, what does the result equal?

To find the result, we divide 1800 by 1000, getting 1.8. Adding 36 gives us 37.8. Multiplying by 5 gives 189. Subtracting 180, the final result equals 9.

Math Question: What is the smallest three-digit number that is divisible by 5, 9, and 10, and is a multiple of 6?

To find the smallest three-digit number divisible by 5, 9, and 10, and being a multiple of 6, we need to find their least common multiple (LCM). LCM(5, 9, 10, 6) = 90. Since we are looking for a three-digit number, we need to find the smallest multiple of 90 greater than or equal to 100. The next multiple of 90 is 180, then 270, and so on. The smallest three-digit number that is divisible by 5, 9, 10, and is a multiple of 6 is 180.

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

1800 (number)

1800 is an even 4-digits composite number following 1799 and preceding 1801. In scientific notation, it is written as 1.800 × 10^3. The sum of its digits is 9. It has a total of 7 prime factors and 36 positive divisors. There are 480 positive integers (up to 1800) that are relatively prime to 1800.

Interesting facts

1800 has 36 divisors, whose sum is 6045
The reverse of 1800 is 0081
Previous prime number is 3

Basic properties

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

Name

Name	one thousand eight hundred

Notation

Scientific notation	1.800 × 10^3
Engineering notation	1.800 × 10^3

Prime Factorization of 1800

Prime Factorization 2 × 2 × 2 × 3 × 5 × 3 × 5

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	7	Total number of prime factors
rad	Radical	30	Product of the distinct prime numbers

The prime factorization of 1800 is 2 × 2 × 2 × 3 × 5 × 3 × 5. Since it has a total of 7 prime factors.

Most popular turbo-numbers

4, 9, 90, 11, 842, 47, 1100, 1064, 61620, 99457, 868426, 823022, 9329057, 9008559, 15723901, 53292022, 623591789, 913794145, 4724927173, 6930966240

Basic calculations (n = 1800)

Multiplication

n×y

n×2	3600
n×3	5400
n×4	7200
n×5	9000

Division

n÷y

n÷2	900
n÷3	600
n÷3	450
n÷5	360

Exponentiation

n^y

n²	3240000
n³	5832000000
n⁴	10497600000000
n⁵	18895680000000000

Nth Root

^y√n

²√n	42.426406871193
³√n	12.164403991147
⁴√n	6.5135556243263
⁵√n	4.4776949269404

Divisors of 1800

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800

36 divisors

τ	Total Divisors	36	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-1799	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.027777777777778	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	36	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1800 can be divided by 36 positive divisors. The sum of these divisors (counting 1800) is 1, the average is 0.027777777777778.

Base conversion 1800

Base	System	Value
2	Binary	11100001000
3	Ternary	2110200
4	Quaternary	130020
5	Quinary	24200
6	Senary	12200
8	Octal	3410
10	Decimal	1800
12	Duodecimal	1060
16	Hexadecimal	708
20	Vigesimal	4a0
36	Base36	1e0

Cryptographic Hash Functions

md5	f39ae9ff3a81f499230c4126e01f421b
sha1	a129261ef1c88ada8b9611d79cd7e0a112c9d4f7
sha256	e49ec846db7527df7ff483009fe61700e6435072c8c5b551ab08f0a13fc45a07
sha512	681d52a1f4aad9f18c496931f8ccc3d72057bc2182d4d715ceef63466bdd3750279180e8ce60af36efcf5c9fcb34b4b3ae6116a815006ab084ee8d4f5564211e
ripemd-160	96cc3bd1811533be2ae7dd139fe89a5a0e438701

1800 as geometric shapes

Circle

Radius = n

Diameter	3600
Circumference	11309.733552923
Area	10178760.197631

Sphere

Radius = n

Volume	24429024474.314
Surface area	40715040.790524
Circumference	11309.733552923

Square

Length = n

Perimeter	7200
Area	3240000
Diagonal	2545.5844122716

Cube

Length = n

Surface area	19440000
Volume	5832000000
Space diagonal	3117.691453624

Equilateral Triangle

Length = n

Perimeter	5400
Area	1402961.1541308
Altitude	1558.845726812

Triangular Pyramid

Length = n

Surface area	1402961.1541308
Volume	687307791.31332
Height	848.52813742386