Math question: What is the sum of the prime factors of the number 1385?

To find the prime factors of 1385, we divide it by prime numbers starting from 2. After dividing by 5, we find that 277 is a prime factor. Hence, the prime factors of 1385 are 5 and 277. Adding these prime factors, we get 5 + 277 = 282. Therefore, the sum of the prime factors of 1385 is 282.

Math question: If the number 1385 is multiplied by 3 and then divided by 5, what is the result?

To find the result, we multiply 1385 by 3, which gives us 4155. Then, we divide 4155 by 5, resulting in 831. Therefore, when the number 1385 is multiplied by 3 and divided by 5, the result is 831.

Math question: What is the sum of the first 10 multiples of 1385?

To find the sum of the first 10 multiples of 1385, we multiply the number 1385 by each integer from 1 to 10 and then add up all the products. So, 1385 + 2770 + 4155 + 5540 + 6925 + 8310 + 9695 + 11080 + 12465 + 13850 = 77,220. Therefore, the sum of the first 10 multiples of 1385 is 77,220.

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

1385 (number)

1385 is an odd 4-digits composite number following 1384 and preceding 1386. In scientific notation, it is written as 1.385 × 10^3. The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors. There are 1104 positive integers (up to 1385) that are relatively prime to 1385.

Interesting facts

1385 has 4 divisors, whose sum is 1668
The reverse of 1385 is 5831
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 4
Sum of Digits 17
Digital Root 8

Name

Name	one thousand three hundred eighty-five

Notation

Scientific notation	1.385 × 10^3
Engineering notation	1.385 × 10^3

Prime Factorization of 1385

Prime Factorization 5 × 277

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	1385	Product of the distinct prime numbers

The prime factorization of 1385 is 5 × 277. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 4, 91, 38, 715, 653, 8172, 1553, 82299, 88456, 248444, 980472, 5054436, 2812947, 95177464, 69796131, 475001750, 397274132, 6975110012, 9496840846

Basic calculations (n = 1385)

Multiplication

n×y

n×2	2770
n×3	4155
n×4	5540
n×5	6925

Division

n÷y

n÷2	692.5
n÷3	461.66666666667
n÷3	346.25
n÷5	277

Exponentiation

n^y

n²	1918225
n³	2656741625
n⁴	3679587150625
n⁵	5096228203615625

Nth Root

^y√n

²√n	37.215588131857
³√n	11.146792698935
⁴√n	6.1004580263991
⁵√n	4.2490315387088

Divisors of 1385

1, 5, 277, 1385

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	-1384	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 1385 can be divided by 4 positive divisors. The sum of these divisors (counting 1385) is 1, the average is 0.25.

Base conversion 1385

Base	System	Value
2	Binary	10101101001
3	Ternary	1220022
4	Quaternary	111221
5	Quinary	21020
6	Senary	10225
8	Octal	2551
10	Decimal	1385
12	Duodecimal	975
16	Hexadecimal	569
20	Vigesimal	395
36	Base36	12h

Cryptographic Hash Functions

md5	86e8f7ab32cfd12577bc2619bc635690
sha1	a7ddd391b75ebf78821c49f97dec245d2f39d816
sha256	f6920d2ecbf720691362f699e0aa14eecffd23c76545147719dcc3a9a5734050
sha512	64204ab85798095e20fe3ab4256a7261818347afe4d18710b789795ca81f2bc98b4e45ddfa05ef6011dfb63b543fe9f317167648a4d993a790404c986adccfc2
ripemd-160	7a165544ad9d22fd2bdb6116243b55fc99048ff1

1385 as geometric shapes

Circle

Radius = n

Diameter	2770
Circumference	8702.2116504437
Area	6026281.5679323

Sphere

Radius = n

Volume	11128533295.448
Surface area	24105126.271729
Circumference	8702.2116504437

Square

Length = n

Perimeter	5540
Area	1918225
Diagonal	1958.6857838867

Cube

Length = n

Surface area	11509350
Volume	2656741625
Space diagonal	2398.8903684829

Equilateral Triangle

Length = n

Perimeter	4155
Area	830615.7900872
Altitude	1199.4451842414

Triangular Pyramid

Length = n

Surface area	830615.7900872
Volume	313100003.14968
Height	652.89526129558