What is the sum of the digits of the number 7945, multiplied by the difference between the hundreds digit and the units digit, divided by the product of the tens digit and the units digit, plus the square root of the sum of the hundreds digit minus the tens digit and the units digit?

The sum of the digits of 7945 is 7 + 9 + 4 + 5 = 25. The difference between the hundreds digit and the units digit is 7 - 5 = 2. The product of the tens digit and the units digit is 4 * 5 = 20. The square root of the sum of the hundreds digit minus the tens digit and the units digit is √(7 - 4 + 5) = √8. Putting it all together: (25 * 2 / 20) + √8 = 2.5 + √8 ≈ 2.5 + 2.83 = 5.33. Therefore, the answer is approximately 5.33.

Math Question: What is the sum of the digits in the number 7945?

To find the sum of the digits in 7945, we add each digit individually. 7 + 9 + 4 + 5 = 25. Therefore, the sum of the digits in the number 7945 is 25.

Math question: What is the largest prime factor of the number 7945?

To find the largest prime factor of 7945, we need to factorize the number. Prime factorizing, we get 7945 = 5 * 1589. Since 1589 is a prime number, it is the largest prime factor of 7945.

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

7945 (number)

7945 is an odd 4-digits composite number following 7944 and preceding 7946. In scientific notation, it is written as 7.945 × 10^3. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 5424 positive integers (up to 7945) that are relatively prime to 7945.

Interesting facts

7945 has 8 divisors, whose sum is 10944
The reverse of 7945 is 5497
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 4
Sum of Digits 25
Digital Root 7

Name

Name	seven thousand nine hundred forty-five

Notation

Scientific notation	7.945 × 10^3
Engineering notation	7.945 × 10^3

Prime Factorization of 7945

Prime Factorization 5 × 7 × 227

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	7945	Product of the distinct prime numbers

The prime factorization of 7945 is 5 × 7 × 227. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 5, 41, 58, 922, 684, 9140, 1330, 22430, 95754, 436130, 864692, 8832700, 3716979, 69248953, 25460517, 731036534, 733207311, 6431856439, 4132695248

Basic calculations (n = 7945)

Multiplication

n×y

n×2	15890
n×3	23835
n×4	31780
n×5	39725

Division

n÷y

n÷2	3972.5
n÷3	2648.3333333333
n÷3	1986.25
n÷5	1589

Exponentiation

n^y

n²	63123025
n³	501512433625
n⁴	3984516285150625
n⁵	3.1656981885522E+19

Nth Root

^y√n

²√n	89.134729482957
³√n	19.954061228922
⁴√n	9.4411190800115
⁵√n	6.0258564327788

Divisors of 7945

1, 5, 7, 35, 227, 1135, 1589, 7945

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	-7944	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 7945 can be divided by 8 positive divisors. The sum of these divisors (counting 7945) is 1, the average is 0.125.

Base conversion 7945

Base	System	Value
2	Binary	1111100001001
3	Ternary	101220021
4	Quaternary	1330021
5	Quinary	223240
6	Senary	100441
8	Octal	17411
10	Decimal	7945
12	Duodecimal	4721
16	Hexadecimal	1f09
20	Vigesimal	jh5
36	Base36	64p

Cryptographic Hash Functions

md5	bef3c6e0d3b86a587cca64bc4f01d4e2
sha1	6df6e9901232154d96b9c976075be61623f2913b
sha256	a3c171bc731350e331258db26f13e04702190215c7598983948abe9d9ead54b7
sha512	b4fecf5d681c2bf30a8edec0173eb31b4c744877306b0244b6cbbf950cdb7faf06d3ada75f51dceb273241137fc9c8115617d070b8fa3b336a16a73d4002a375
ripemd-160	1c5d8c1b496ab26797226b3390dc6bf7adc79503

7945 as geometric shapes

Circle

Radius = n

Diameter	15890
Circumference	49919.907265542
Area	198306831.61236

Sphere

Radius = n

Volume	2100730369547
Surface area	793227326.44946
Circumference	49919.907265542

Square

Length = n

Perimeter	31780
Area	63123025
Diagonal	11235.926753054

Cube

Length = n

Surface area	378738150
Volume	501512433625
Space diagonal	13761.143666135

Equilateral Triangle

Length = n

Perimeter	23835
Area	27333071.60686
Altitude	6880.5718330674

Triangular Pyramid

Length = n

Surface area	27333071.60686
Volume	59103807110.934
Height	3745.3089176847