Math Question: If 1389 is divided by the sum of its digits multiplied by their difference, what is the resulting quotient?

To solve, we start by finding the sum of the digits: 1 + 3 + 8 + 9 = 21. Then, we calculate their difference: 9 - 8 - 3 - 1 = -3. Now, we multiply these values: 21 × -3 = -63. Finally, we divide 1389 by -63, resulting in a quotient of -22. The answer is -22, which signifies that 1389 divided by the sum of its digits multiplied by their difference equals -22.

Math question: What is the largest prime factor of the number 1389?

To find the largest prime factor of 1389, we need to factorize it. Factoring 1389, we get 3 x 463. Since 463 is a prime number, it is the largest prime factor of 1389.

Math question: What is the sum of the digits of the number 1389?

To find the sum of the digits, we add each digit individually. In this case, we have 1, 3, 8, and 9. Adding them together, we get 1 + 3 + 8 + 9 = 21. Thus, the sum of the digits of the number 1389 is 21.

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

1389 (number)

1389 is an odd 4-digits composite number following 1388 and preceding 1390. In scientific notation, it is written as 1.389 × 10^3. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 924 positive integers (up to 1389) that are relatively prime to 1389.

Interesting facts

1389 has 4 divisors, whose sum is 1856
The reverse of 1389 is 9831
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 4
Sum of Digits 21
Digital Root 3

Name

Name	one thousand three hundred eighty-nine

Notation

Scientific notation	1.389 × 10^3
Engineering notation	1.389 × 10^3

Prime Factorization of 1389

Prime Factorization 3 × 463

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	1389	Product of the distinct prime numbers

The prime factorization of 1389 is 3 × 463. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 4, 79, 49, 657, 837, 3083, 6511, 22989, 74987, 938292, 383121, 577275, 5341905, 6378751, 61439961, 876726321, 290307473, 4378757577, 6542406572

Basic calculations (n = 1389)

Multiplication

n×y

n×2	2778
n×3	4167
n×4	5556
n×5	6945

Division

n÷y

n÷2	694.5
n÷3	463
n÷3	347.25
n÷5	277.8

Exponentiation

n^y

n²	1929321
n³	2679826869
n⁴	3722279521041
n⁵	5170246254725949

Nth Root

^y√n

²√n	37.269290307168
³√n	11.157513352525
⁴√n	6.1048579268619
⁵√n	4.2514830225494

Divisors of 1389

1, 3, 463, 1389

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	-1388	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 1389 can be divided by 4 positive divisors. The sum of these divisors (counting 1389) is 1, the average is 0.25.

Base conversion 1389

Base	System	Value
2	Binary	10101101101
3	Ternary	1220110
4	Quaternary	111231
5	Quinary	21024
6	Senary	10233
8	Octal	2555
10	Decimal	1389
12	Duodecimal	979
16	Hexadecimal	56d
20	Vigesimal	399
36	Base36	12l

Cryptographic Hash Functions

md5	2bd7f907b7f5b6bbd91822c0c7b835f6
sha1	0b9c57db4f740e08a9a314c9428fc5e7addff232
sha256	e40a3fa00fd2788c09beb9d57d12f88172d9d9ff8f2ff6b3e66482a6abc0da75
sha512	9b41ecaa30226125a50a0996e6f22ac66e5d13b5b02e3565a69ef9f13a97d101873910dd5517a0e0554dc2c5aabe21bc9decbb646e9bbcc66eb626dd74d43ea0
ripemd-160	75d9f685c27b2e977698f67d4fb1f652c4959b6d

1389 as geometric shapes

Circle

Radius = n

Diameter	2778
Circumference	8727.3443916724
Area	6061140.6800165

Sphere

Radius = n

Volume	11225232539.391
Surface area	24244562.720066
Circumference	8727.3443916724

Square

Length = n

Perimeter	5556
Area	1929321
Diagonal	1964.3426381362

Cube

Length = n

Surface area	11575926
Volume	2679826869
Space diagonal	2405.8185717132

Equilateral Triangle

Length = n

Perimeter	4167
Area	835420.4990274
Altitude	1202.9092858566

Triangular Pyramid

Length = n

Surface area	835420.4990274
Volume	315820625.24597
Height	654.78087937874