Math question: If there are 69 seats in a theater and each seat costs $10, how much money can be earned if every seat is filled?

To find the answer, we multiply the number of seats (69) by the cost of each seat ($10). Therefore, the theater can earn $690 if every seat is filled. This calculation is done by multiplying 69 by 10, which equals 690.

Math question: A clothing store has 69 shirts on sale priced at $20 each. If the store discounts the shirts by 25% and charges a 7% sales tax, what is the total cost of purchasing one shirt?

To calculate the total cost of purchasing one shirt, start by applying the discount of 25% to the original price of $20. This discount amounts to $5, reducing the price of the shirt to $15. Next, calculate the sales tax by multiplying the discounted price ($15) by the sales tax rate of 7%, which results in an additional $1.05. Adding the discounted price and the sales tax together gives the final cost of $16.05 for one shirt from the clothing store.

Question: What is the sum of 69 and its double, multiplied by the square root of 69, subtracted from three times the square root of 69?

To find the solution, first evaluate the square root of 69, which is approximately 8.30662. Then, calculate 69 + (2 * 69) multiplied by 8.30662, resulting in 1742.22412. Finally, subtract 3 multiplied by 8.30662 from this sum to get the answer: 1742.22412 - (3 * 8.30662) = 1717.30426.

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

69 (number)

69 is an odd 2-digits composite number following 68 and preceding 70. In scientific notation, it is written as 6.9 × 10^1. The sum of its digits is 15. It has a total of 2 prime factors and 4 positive divisors. There are 44 positive integers (up to 69) that are relatively prime to 69.

Interesting facts

69 has 4 divisors, whose sum is 96
The reverse of 69 is 96
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 2
Sum of Digits 15
Digital Root 6

Name

Name	sixty-nine

Notation

Scientific notation	6.9 × 10^1
Engineering notation	6.9 × 10^0

Prime Factorization of 69

Prime Factorization 3 × 23

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	69	Product of the distinct prime numbers

The prime factorization of 69 is 3 × 23. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 1, 24, 38, 539, 924, 1100, 3675, 26717, 45262, 120337, 181046, 9095159, 9978644, 16689918, 23555126, 938623638, 188288363, 4519426281, 7134133694

Basic calculations (n = 69)

Multiplication

n×y

n×2	138
n×3	207
n×4	276
n×5	345

Division

n÷y

n÷2	34.5
n÷3	23
n÷3	17.25
n÷5	13.8

Exponentiation

n^y

n²	4761
n³	328509
n⁴	22667121
n⁵	1564031349

Nth Root

^y√n

²√n	8.3066238629181
³√n	4.1015659297023
⁴√n	2.882121417102
⁵√n	2.3322216261602

Divisors of 69

1, 3, 23, 69

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	-68	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 69 can be divided by 4 positive divisors. The sum of these divisors (counting 69) is 1, the average is 0.25.

Base conversion 69

Base	System	Value
2	Binary	1000101
3	Ternary	2120
4	Quaternary	1011
5	Quinary	234
6	Senary	153
8	Octal	105
10	Decimal	69
12	Duodecimal	59
16	Hexadecimal	45
20	Vigesimal	39
36	Base36	1x

Cryptographic Hash Functions

md5	14bfa6bb14875e45bba028a21ed38046
sha1	a72b20062ec2c47ab2ceb97ac1bee818f8b6c6cb
sha256	c75cb66ae28d8ebc6eded002c28a8ba0d06d3a78c6b5cbf9b2ade051f0775ac4
sha512	12dfe9621346c4db705d8c909e28a4509fab47649b4bcf7e100e4f9d97a5c1dcf19e03be8c74fd30244a0a1764aad06fae673cdd04c408070efab1b4395dd61b
ripemd-160	faa52404a9c4c21617de573c5b37428a3a396863

69 as geometric shapes

Circle

Radius = n

Diameter	138
Circumference	433.53978619539
Area	14957.122623741

Sphere

Radius = n

Volume	1376055.2813842
Surface area	59828.490494964
Circumference	433.53978619539

Square

Length = n

Perimeter	276
Area	4761
Diagonal	97.580735803744

Cube

Length = n

Surface area	28566
Volume	328509
Space diagonal	119.51150572225

Equilateral Triangle

Length = n

Perimeter	207
Area	2061.5734737089
Altitude	59.755752861126

Triangular Pyramid

Length = n

Surface area	2061.5734737089
Volume	38715.156930135
Height	32.526911934581