Math question: The number 215 is divided by 5 and then multiplied by 3. What is the resulting number?

To find the resulting number, we divide 215 by 5, which equals 43. Then, we multiply 43 by 3, giving us a result of 129. Therefore, the resulting number is 129. This can be calculated by performing the operations step by step: 215 ÷ 5 = 43; 43 × 3 = 129. So, the number 215, when divided by 5 and then multiplied by 3, equals 129.

Math Question: What is the sum of the multiples of 5 between 100 and 215?

To find the sum of multiples of 5, we need to determine the number of terms and calculate the sum. The first multiple of 5 in this range is 105 and the last is 210. Therefore, the number of terms is (210-105)/5 + 1 = 22. The sum of an arithmetic series can be calculated using the formula Sn = n/2 * (a + l), where Sn is the sum, n is the number of terms, a is the first term, and l is the last term. Plugging in the values, we get Sn = 22/2 * (105 + 210) = 11 * 315 = 3465. Thus, the sum of multiples of 5 between 100 and 215 is 3465.

Math Question: What is the sum of the prime factors of 215?

Firstly, we need to find the prime factors of 215, which is the product of prime numbers that divide it evenly. We know that 215 is an odd number, so it cannot be divisible by 2. We start dividing it with the smallest prime number, 3. When we divide 215 by 3, we get 71. As 71 is a prime number itself, we stop reducing it further. Therefore, the prime factorization of 215 becomes 3 * 71. Now, to find the sum of these prime factors, we add them: 3 + 71 = 74. Thus, the sum of the prime factors of 215 is 74.

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

215 (number)

215 is an odd 3-digits composite number following 214 and preceding 216. In scientific notation, it is written as 2.15 × 10^2. The sum of its digits is 8. It has a total of 2 prime factors and 4 positive divisors. There are 168 positive integers (up to 215) that are relatively prime to 215.

Interesting facts

215 has 4 divisors, whose sum is 264
The reverse of 215 is 512
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 3
Sum of Digits 8
Digital Root 8

Name

Name	two hundred fifteen

Notation

Scientific notation	2.15 × 10^2
Engineering notation	2.15 × 10^0

Prime Factorization of 215

Prime Factorization 5 × 43

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	215	Product of the distinct prime numbers

The prime factorization of 215 is 5 × 43. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 2, 34, 4, 977, 222, 5056, 8236, 44601, 9071, 921309, 572076, 1010205, 2613404, 8728382, 53940449, 926741883, 379742683, 6817806382, 2753804690

Basic calculations (n = 215)

Multiplication

n×y

n×2	430
n×3	645
n×4	860
n×5	1075

Division

n÷y

n÷2	107.5
n÷3	71.666666666667
n÷3	53.75
n÷5	43

Exponentiation

n^y

n²	46225
n³	9938375
n⁴	2136750625
n⁵	459401384375

Nth Root

^y√n

²√n	14.662878298615
³√n	5.9907264148951
⁴√n	3.8292137964098
⁵√n	2.9274379058536

Divisors of 215

1, 5, 43, 215

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	-214	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 215 can be divided by 4 positive divisors. The sum of these divisors (counting 215) is 1, the average is 0.25.

Base conversion 215

Base	System	Value
2	Binary	11010111
3	Ternary	21222
4	Quaternary	3113
5	Quinary	1330
6	Senary	555
8	Octal	327
10	Decimal	215
12	Duodecimal	15b
16	Hexadecimal	d7
20	Vigesimal	af
36	Base36	5z

Cryptographic Hash Functions

md5	3b8a614226a953a8cd9526fca6fe9ba5
sha1	828f720439cefaeb3acc7a7babce0a28abaa07a3
sha256	d86580a57f7bf542e85202283cb845953c9d28f80a8e651db08b2fc0b2d6a731
sha512	60da519a6dd8da0c334f93c9fbd45a9db13ad3cd00acd57da39b2109d050ac0be7767f24dba050d8bd6b771e347f1df5e1610790af3c7aca5a23bcaa152d7377
ripemd-160	9d44708e473f1aa64c279c0af2cdf8df907d20c5

215 as geometric shapes

Circle

Radius = n

Diameter	430
Circumference	1350.8848410436
Area	145220.12041219

Sphere

Radius = n

Volume	41629767.851494
Surface area	580880.48164875
Circumference	1350.8848410436

Square

Length = n

Perimeter	860
Area	46225
Diagonal	304.05591591022

Cube

Length = n

Surface area	277350
Volume	9938375
Space diagonal	372.39092362731

Equilateral Triangle

Length = n

Perimeter	645
Area	20016.012144968
Altitude	186.19546181365

Triangular Pyramid

Length = n

Surface area	20016.012144968
Volume	1171248.7260791
Height	101.35197197007