Math question: How many three-digit numbers can be formed using the digits 3, 4, and 5, without repeating any digit?

To calculate the number of three-digit numbers that can be formed using 3, 4, and 5 without repetition, we need to compute the permutation of these three digits. The first digit can have three choices, the second digit two choices (as one digit has been used already), and the last digit simply fills the remaining space. Thus, the total number of three-digit numbers is 3 × 2 × 1 = 6. Therefore, using only the digits 3, 4, and 5, without repetition, we can form 6 different three-digit numbers: 345, 354, 435, 453, 534, and 543.

What is the sum of 345 and its square root, rounded to the nearest whole number, divided by the cube root of 345, multiplied by the square of 345, divided by 10, and finally subtracted by twice the square root of 345?

The result of this calculation is a large number, approximately 155920906317487.

Math question: What is the sum of the digits in the number 345?

To find the sum of the digits in 345, we first break down the number into its individual digits: 3, 4, and 5. Adding these digits together, we get 3 + 4 + 5 = 12 as the sum. Hence, the sum of the digits in the number 345 is 12.

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

345 (number)

345 is an odd 3-digits composite number following 344 and preceding 346. In scientific notation, it is written as 3.45 × 10^2. The sum of its digits is 12. It has a total of 2 prime factors and 4 positive divisors. There are 176 positive integers (up to 345) that are relatively prime to 345.

Interesting facts

345 has 4 divisors, whose sum is 384
The reverse of 345 is 543
Previous prime number is 15

Basic properties

Is Prime? no
Number parity odd
Number length 3
Sum of Digits 12
Digital Root 3

Name

Name	three hundred forty-five

Notation

Scientific notation	3.45 × 10^2
Engineering notation	3.45 × 10^0

Prime Factorization of 345

Prime Factorization 15 × 23

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	345	Product of the distinct prime numbers

The prime factorization of 345 is 15 × 23. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 3, 26, 45, 641, 475, 5265, 4444, 60412, 78982, 747384, 284997, 9009810, 6472609, 31159583, 11037024, 539439040, 899958957, 1257341351, 7065163409

Basic calculations (n = 345)

Multiplication

n×y

n×2	690
n×3	1035
n×4	1380
n×5	1725

Division

n÷y

n÷2	172.5
n÷3	115
n÷3	86.25
n÷5	69

Exponentiation

n^y

n²	119025
n³	41063625
n⁴	14166950625
n⁵	4887597965625

Nth Root

^y√n

²√n	18.574175621007
³√n	7.0135790834997
⁴√n	4.3097767483951
⁵√n	3.2178353547146

Divisors of 345

1, 15, 23, 345

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	-344	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 345 can be divided by 4 positive divisors. The sum of these divisors (counting 345) is 1, the average is 0.25.

Base conversion 345

Base	System	Value
2	Binary	101011001
3	Ternary	110210
4	Quaternary	11121
5	Quinary	2340
6	Senary	1333
8	Octal	531
10	Decimal	345
12	Duodecimal	249
16	Hexadecimal	159
20	Vigesimal	h5
36	Base36	9l

Cryptographic Hash Functions

md5	d81f9c1be2e08964bf9f24b15f0e4900
sha1	35139ef894b28b73bea022755166a23933c7d9cb
sha256	da70dfa4d9f95ac979f921e8e623358236313f334afcd06cddf8a5621cf6a1e9
sha512	3fb4053ac048ac5df513830006443ccbce60dc549e01b263aecb0a8f5de8ea0c5ba8dcf987e1b56c6e884ab4782629810c76369ed4449ef78a8c24dab5dc5493
ripemd-160	1fd33666cdee636e08f28cd921a4c944a6c7d5f5

345 as geometric shapes

Circle

Radius = n

Diameter	690
Circumference	2167.698930977
Area	373928.06559353

Sphere

Radius = n

Volume	172006910.17302
Surface area	1495712.2623741
Circumference	2167.698930977

Square

Length = n

Perimeter	1380
Area	119025
Diagonal	487.90367901872

Cube

Length = n

Surface area	714150
Volume	41063625
Space diagonal	597.55752861126

Equilateral Triangle

Length = n

Perimeter	1035
Area	51539.336842721
Altitude	298.77876430563

Triangular Pyramid

Length = n

Surface area	51539.336842721
Volume	4839394.6162669
Height	162.63455967291