Math Question: What is the sum of the digits of the number 9945 after multiplying it by 3 and subtracting 15% of the product?

To solve, we first multiply 9945 by 3, obtaining 29835. Then, we find 15% of 29835, which is 4475.25. Subtracting this from 29835 gives us 25359.75. The sum of the digits in 25359.75 is 2+5+3+5+9+7+5 = 36. Hence, the sum of the digits of 9945 after the given operations is 36.

Math Question: If 9945 is multiplied by 4 and then divided by 2, what is the result when 100 is subtracted from it?

To find the result, we start by multiplying 9945 by 4, which gives us 39780. Next, we divide it by 2, resulting in 19890. Finally, when we subtract 100 from this, we get the final answer of 19790. Therefore, the result is 19790, obtained by multiplying 9945 by 4, dividing it by 2, and then subtracting 100 from it.

What is the smallest prime number greater than 9945 and divisible by 7?

The smallest prime number greater than 9945 is 9949. To check if it is divisible by 7, we can sum its digits. 9+9+4+9 = 31. Since 31 is not divisible by 7, the smallest prime number greater than 9945 and divisible by 7 is larger than 9949.

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

9945 (number)

9945 is an odd 4-digits composite number following 9944 and preceding 9946. In scientific notation, it is written as 9.945 × 10^3. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 4608 positive integers (up to 9945) that are relatively prime to 9945.

Interesting facts

9945 has 8 divisors, whose sum is 13760
The reverse of 9945 is 5499
Previous prime number is 85

Basic properties

Is Prime? no
Number parity odd
Number length 4
Sum of Digits 27
Digital Root 9

Name

Name	nine thousand nine hundred forty-five

Notation

Scientific notation	9.945 × 10^3
Engineering notation	9.945 × 10^3

Prime Factorization of 9945

Prime Factorization 39 × 85 × 3

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	9945	Product of the distinct prime numbers

The prime factorization of 9945 is 39 × 85 × 3. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 4, 69, 90, 292, 816, 3466, 720, 26344, 97452, 626910, 808855, 5077217, 4039921, 11853649, 67461075, 89579633, 945405061, 7366332505, 8167522611

Basic calculations (n = 9945)

Multiplication

n×y

n×2	19890
n×3	29835
n×4	39780
n×5	49725

Division

n÷y

n÷2	4972.5
n÷3	3315
n÷3	2486.25
n÷5	1989

Exponentiation

n^y

n²	98903025
n³	983590583625
n⁴	9781808354150625
n⁵	9.7280084082028E+19

Nth Root

^y√n

²√n	99.724620831568
³√n	21.504776295981
⁴√n	9.9862215492932
⁵√n	6.3026175942619

Divisors of 9945

1, 3, 39, 85, 117, 255, 3315, 9945

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	-9944	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 9945 can be divided by 8 positive divisors. The sum of these divisors (counting 9945) is 1, the average is 0.125.

Base conversion 9945

Base	System	Value
2	Binary	10011011011001
3	Ternary	111122100
4	Quaternary	2123121
5	Quinary	304240
6	Senary	114013
8	Octal	23331
10	Decimal	9945
12	Duodecimal	5909
16	Hexadecimal	26d9
20	Vigesimal	14h5
36	Base36	7o9

Cryptographic Hash Functions

md5	115c343463041f8763d7552fdce43c9f
sha1	aa004e32a41280d28a8b34b207bbf86ee6994a51
sha256	eaf17a74d4f66de7efa4240dd647b040e3238ad8542f1dff2a87279af99de977
sha512	2480be897b8966891606209da031d2a089057921e59c700c14d11abae2a2842ebf81787f9df02f2846b15641002f2af1c53b95e65d2187fc041e648c434e2d46
ripemd-160	2dc60c7db25a80810d2113551358a1ab880955ae

9945 as geometric shapes

Circle

Radius = n

Diameter	19890
Circumference	62486.277879901
Area	310713016.75781

Sphere

Radius = n

Volume	4120054602208.5
Surface area	1242852067.0312
Circumference	62486.277879901

Square

Length = n

Perimeter	39780
Area	98903025
Diagonal	14064.3538778

Cube

Length = n

Surface area	593418150
Volume	983590583625
Space diagonal	17225.245281272

Equilateral Triangle

Length = n

Perimeter	29835
Area	42826266.080564
Altitude	8612.6226406362

Triangular Pyramid

Length = n

Surface area	42826266.080564
Volume	115917261932.08
Height	4688.1179592668