Math question: If Mary has 30 apples and she wants to distribute them equally among her 6 friends, how many apples will each friend receive?

To find the number of apples each friend will receive, we divide the total number of apples, which is 30, by the number of friends, which is 6. Thus, each friend will receive 30 ÷ 6 = 5 apples.

Question: What is the sum of all even numbers between 10 and 30, inclusive?

To find the sum of all even numbers between 10 and 30, we can list the numbers: 10, 12, 14, 16, 18, 20, 22, 24, 26, and 28. The sum can be obtained by adding these numbers: 10 + 12 + 14 + 16 + 18 + 20 + 22 + 24 + 26 + 28 = 200. Therefore, the sum of all even numbers between 10 and 30, inclusive, is 200.

Math Question: What is the least common multiple of 30 and 45?

To find the least common multiple (LCM) of 30 and 45, we list the multiples of each number and compare them. The multiples of 30 are 30, 60, 90, 120, 150, 180, 210, 240, 270, and so on. On the other hand, the multiples of 45 are 45, 90, 135, 180, 225, 270, 315, 360, and so on. It is evident that 90 is the smallest common multiple of 30 and 45, making it their LCM. Therefore, 90 is the answer to the given question.

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

30 (number)

30 is an even 2-digits composite number following 29 and preceding 31. In scientific notation, it is written as 3.0 × 10^1. The sum of its digits is 3. It has a total of 3 prime factors and 8 positive divisors. There are 8 positive integers (up to 30) that are relatively prime to 30.

Interesting facts

30 has 8 divisors, whose sum is 72
The reverse of 30 is 03
Previous prime number is 5

Basic properties

Is Prime? no
Number parity even
Number length 2
Sum of Digits 3
Digital Root 3

Name

Name	thirty

Notation

Scientific notation	3.0 × 10^1
Engineering notation	3.0 × 10^0

Prime Factorization of 30

Prime Factorization 2 × 5 × 3

Composite number

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

The prime factorization of 30 is 2 × 5 × 3. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 5, 69, 58, 8, 993, 616, 4519, 38891, 75738, 562937, 13086, 5548311, 8124017, 9288606, 72564841, 309916058, 364441268, 6094327979, 4777194562

Basic calculations (n = 30)

Multiplication

n×y

n×2	60
n×3	90
n×4	120
n×5	150

Division

n÷y

n÷2	15
n÷3	10
n÷3	7.5
n÷5	6

Exponentiation

n^y

n²	900
n³	27000
n⁴	810000
n⁵	24300000

Nth Root

^y√n

²√n	5.4772255750517
³√n	3.1072325059539
⁴√n	2.3403473193207
⁵√n	1.9743504858348

Divisors of 30

1, 2, 3, 5, 6, 10, 15, 30

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	-29	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 30 can be divided by 8 positive divisors. The sum of these divisors (counting 30) is 1, the average is 0.125.

Base conversion 30

Base	System	Value
2	Binary	11110
3	Ternary	1010
4	Quaternary	132
5	Quinary	110
6	Senary	50
8	Octal	36
10	Decimal	30
12	Duodecimal	26
16	Hexadecimal	1e
20	Vigesimal	1a
36	Base36	u

Cryptographic Hash Functions

md5	34173cb38f07f89ddbebc2ac9128303f
sha1	22d200f8670dbdb3e253a90eee5098477c95c23d
sha256	624b60c58c9d8bfb6ff1886c2fd605d2adeb6ea4da576068201b6c6958ce93f4
sha512	1ccbff33e55627a50beca8cf5c89f77c3165dcb3218171308423f250f0bb0be9700bbfdd92d35dfa2e579110266a40194d707b50e7d27b6f09b81fbbf80231a3
ripemd-160	f6708d325c5f7a22b5d116e7e3ec2153651ee658

30 as geometric shapes

Circle

Radius = n

Diameter	60
Circumference	188.49555921539
Area	2827.4333882308

Sphere

Radius = n

Volume	113097.33552923
Surface area	11309.733552923
Circumference	188.49555921539

Square

Length = n

Perimeter	120
Area	900
Diagonal	42.426406871193

Cube

Length = n

Surface area	5400
Volume	27000
Space diagonal	51.961524227066

Equilateral Triangle

Length = n

Perimeter	90
Area	389.711431703
Altitude	25.980762113533

Triangular Pyramid

Length = n

Surface area	389.711431703
Volume	3181.9805153395
Height	14.142135623731