Question: What is the sum of the digits of the number 1809 when each digit is multiplied by its position value and then added together?

To find the sum, we assign position values to each digit: 1 for the thousands place, 2 for the hundreds place, 3 for the tens place, and 4 for the ones place. Multiplying the digit in the thousands place (1) by its position value (1) gives 1. Multiplying the digit in the hundreds place (8) by its position value (2) gives 16. Multiplying the digit in the tens place (0) by its position value (3) gives 0. Multiplying the digit in the ones place (9) by its position value (4) gives 36. Adding these products together, we get 1 + 16 + 0 + 36 = 53 as the final sum.

Math question: If the number 1809 is multiplied by 37 and then divided by the sum of its digits, what is the result?

To solve this problem, we begin by calculating the sum of the digits in 1809, which is 1 + 8 + 0 + 9 = 18. Next, we multiply 1809 by 37, giving us 1809 × 37 = 66,933. Finally, we divide 66,933 by the sum of the digits (18). Therefore, the result is 66,933 ÷ 18 = 3,718.5. Therefore, by multiplying 1809 by 37 and dividing by the sum of its digits, we achieve a result of 3,718.5.

Math Question: If a number is multiplied by 3, divided by 2, and then multiplied by itself, resulting in 1809, what is the original number?

Let's assume the original number is denoted by x. We can set up the equation as: (x * 3) / 2 * x = 1809. Simplifying it, we get: (3x^2) / 2 = 1809. To solve for x, we can multiply both sides by 2/3, giving us: x^2 = (2/3) * 1809. Therefore, x^2 = 1206. By taking the square root of both sides, we find that x = ±√1206. Since we're looking for a positive value, the original number is approximately 34.74. (Note: The answer was rounded to two decimal places.)

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

1809 (number)

1809 is an odd 4-digits composite number following 1808 and preceding 1810. In scientific notation, it is written as 1.809 × 10^3. The sum of its digits is 18. It has a total of 4 prime factors and 8 positive divisors. There are 1188 positive integers (up to 1809) that are relatively prime to 1809.

Interesting facts

1809 has 8 divisors, whose sum is 2720
The reverse of 1809 is 9081
Previous prime number is 3

Basic properties

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

Name

Name	one thousand eight hundred nine

Notation

Scientific notation	1.809 × 10^3
Engineering notation	1.809 × 10^3

Prime Factorization of 1809

Prime Factorization 3 × 3 × 3 × 67

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	201	Product of the distinct prime numbers

The prime factorization of 1809 is 3 × 3 × 3 × 67. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 7, 6, 22, 528, 799, 9628, 2542, 28728, 55676, 386902, 288708, 1269712, 9947722, 37294948, 16097129, 155072235, 497280175, 8571810933, 2211157803

Basic calculations (n = 1809)

Multiplication

n×y

n×2	3618
n×3	5427
n×4	7236
n×5	9045

Division

n÷y

n÷2	904.5
n÷3	603
n÷3	452.25
n÷5	361.8

Exponentiation

n^y

n²	3272481
n³	5919918129
n⁴	10709131895361
n⁵	19372819598708049

Nth Root

^y√n

²√n	42.532340636273
³√n	12.184644301337
⁴√n	6.5216823470845
⁵√n	4.48216369325

Divisors of 1809

1, 3, 9, 27, 67, 201, 603, 1809

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	-1808	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 1809 can be divided by 8 positive divisors. The sum of these divisors (counting 1809) is 1, the average is 0.125.

Base conversion 1809

Base	System	Value
2	Binary	11100010001
3	Ternary	2111000
4	Quaternary	130101
5	Quinary	24214
6	Senary	12213
8	Octal	3421
10	Decimal	1809
12	Duodecimal	1069
16	Hexadecimal	711
20	Vigesimal	4a9
36	Base36	1e9

Cryptographic Hash Functions

md5	645098b086d2f9e1e0e939c27f9f2d6f
sha1	52e39965d37749903ced91c49d41d01e5f292fbb
sha256	4fc779c823fd37ed61f66a6ae37c9dffed06bb295f3902d2fa9d485aa741a724
sha512	c6c2a38f82771b646c96a432c042d29a4c8aba869f98802e407cfe0349277bd61e2d18957b2bec46bd5a6f641a92d9516bc0d496f1c5d3d62493da6a1c379a67
ripemd-160	d372868dab76fca06e6fa465d594e43826d07cf2

1809 as geometric shapes

Circle

Radius = n

Diameter	3618
Circumference	11366.282220688
Area	10280802.268612

Sphere

Radius = n

Volume	24797295071.893
Surface area	41123209.074449
Circumference	11366.282220688

Square

Length = n

Perimeter	7236
Area	3272481
Diagonal	2558.3123343329

Cube

Length = n

Surface area	19634886
Volume	5919918129
Space diagonal	3133.2799108921

Equilateral Triangle

Length = n

Perimeter	5427
Area	1417025.839701
Altitude	1566.639955446

Triangular Pyramid

Length = n

Surface area	1417025.839701
Volume	697669042.18085
Height	852.77077811098