Math Question: What is the sum of all the digits in the number 8081 when each digit is multiplied by its place value, starting from the right?

To solve this, we multiply the units digit (1) by its place value (1) which gives 1. Then, we multiply the tens digit (8) by its place value (10) to get 80. Finally, we multiply the hundreds digit (0) by its place value (100) which gives 0. Adding these products (1 + 80 + 0) yields the sum of the digits as 81. Thus, the answer is 81.

Math Question: What is the product of the prime factors of the number formed by adding 1 to the reverse of the cubes of the digits in the number 8081?

To find the answer, we first reverse the digits of 8081, which gives us 1808. Then, we cube each digit to get 1^3 + 8^3 + 0^3 + 8^3, which simplifies to 513. Adding 1 to 513 gives us 514. The prime factors of 514 are 2 and 257. Therefore, the product of the prime factors is 2 x 257 = 514.

Math Question: What is the sum of the digits of the number obtained by squaring 8081 and subtracting the cube of the digit in the tens place?

To find the answer, we start by squaring 8081, which equals 65,295,361. The digit in the tens place of 8081 is 8, so its cube is 8^3 = 512. Now, subtracting the cube of the tens digit from the squared number, we have 65,295,361 - 512 = 65,294,849. To find the sum of the digits, we add 6 + 5 + 2 + 9 + 4 + 8 + 4 + 9 = 47. Thus, the sum of the digits is 47.

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

8081 (number)

8081 is an odd 4-digits prime number following 8080 and preceding 8082. In scientific notation, it is written as 8.081 × 10^3. The sum of its digits is 17. It has a total of 1 prime factors and 2 positive divisors. There are 8080 positive integers (up to 8081) that are relatively prime to 8081.

Interesting facts

8081 has 2 divisors, whose sum is 8082
The reverse of 8081 is 1808
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 4
Sum of Digits 17
Digital Root 8

Name

Name	eight thousand eighty-one

Notation

Scientific notation	8.081 × 10^3
Engineering notation	8.081 × 10^3

Prime Factorization of 8081

Prime Factorization 8081

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	8081	Product of the distinct prime numbers

The prime factorization of 8081 is 8081. Since it has a total of 1 prime factors.

Most popular turbo-numbers

10, 4, 7, 28, 949, 214, 9320, 3043, 75274, 76023, 708396, 371916, 579611, 8901882, 69690276, 80007177, 666458148, 646560513, 8514322329, 4455349307

Basic calculations (n = 8081)

Multiplication

n×y

n×2	16162
n×3	24243
n×4	32324
n×5	40405

Division

n÷y

n÷2	4040.5
n÷3	2693.6666666667
n÷3	2020.25
n÷5	1616.2

Exponentiation

n^y

n²	65302561
n³	527709995441
n⁴	4264424473158721
n⁵	3.4460814167596E+19

Nth Root

^y√n

²√n	89.894382471876
³√n	20.067273460359
⁴√n	9.4812648139305
⁵√n	6.0463463543618

Divisors of 8081

1, 8081

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	8082	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	4041	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	89.89994438263	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9997525365009	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 8081 can be divided by 2 positive divisors. The sum of these divisors (counting 8081) is 8082, the average is 4041.

Base conversion 8081

Base	System	Value
2	Binary	1111110010001
3	Ternary	102002022
4	Quaternary	1332101
5	Quinary	224311
6	Senary	101225
8	Octal	17621
10	Decimal	8081
12	Duodecimal	4815
16	Hexadecimal	1f91
20	Vigesimal	1041
36	Base36	68h

Cryptographic Hash Functions

md5	4afe044911ed2c247005912512ace23b
sha1	ef2792074b8dcc61ffa57af8d2f4d3d7407cfe03
sha256	a7fc04e4c6f7823a3ccbd1dd99a7300ded02962e8b259da67fe0af937903eed5
sha512	fbc9fd42641599befdb9b8fd6918c72ac94c91407859682c81156d606d4c702f7f207f7b6756d414a29a629d7a91bb3abaf5b6a50ddaf3e53c19c5d2ba0485f2
ripemd-160	940f9400409493519881b67e591f35c4900631df

8081 as geometric shapes

Circle

Radius = n

Diameter	16162
Circumference	50774.420467318
Area	205154045.8982

Sphere

Radius = n

Volume	2210466459871.1
Surface area	820616183.5928
Circumference	50774.420467318

Square

Length = n

Perimeter	32324
Area	65302561
Diagonal	11428.259797537

Cube

Length = n

Surface area	391815366
Volume	527709995441
Space diagonal	13996.702575964

Equilateral Triangle

Length = n

Perimeter	24243
Area	28276838.379091
Altitude	6998.351287982

Triangular Pyramid

Length = n

Surface area	28276838.379091
Volume	62191219379.376
Height	3809.4199325123