Question: If 661 is multiplied by the sum of its digits, what is the resulting product?

To find the sum of the digits of 661, we add 6 + 6 + 1, which equals 13. Now, multiplying 661 by 13, we get 8593. Therefore, the resulting product is 8593.

Question: What is 661 divided by 2, multiplied by 10, increased by 7, divided by 5, and subtracted by 3, then multiplied by 4, divided by 3, decreased by 8, squared, and finally divided by 10?

Starting with 661, we divide it by 2 to get 330.5. Multiplying by 10 gives us 3305, adding 7 results in 3312. Dividing by 5 yields 662.4, and subtracting 3 gives 659.4. Now, we multiply by 4 to get 2637.6, then divide by 3 for 879.2. Decreasing by 8, we obtain 871.2. Squaring it gives 759403.44. Finally, we divide by 10 to obtain the answer: 75940.344

Math question: What are the factors of the number 661?

In order to find the factors of 661, we need to determine all the whole numbers that divide evenly into 661. The factors of 661 are 1 and 661 since 661 is a prime number. Prime numbers only have two factors: 1 and itself. Therefore, the factors of 661 are 1 and 661.

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

661 (number)

661 is an odd 3-digits prime number following 660 and preceding 662. In scientific notation, it is written as 6.61 × 10^2. The sum of its digits is 13. It has a total of 1 prime factors and 2 positive divisors. There are 660 positive integers (up to 661) that are relatively prime to 661.

Interesting facts

661 has 2 divisors, whose sum is 662
The reverse of 661 is 166
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 3
Sum of Digits 13
Digital Root 4

Name

Name	six hundred sixty-one

Notation

Scientific notation	6.61 × 10^2
Engineering notation	6.61 × 10^0

Prime Factorization of 661

Prime Factorization 661

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	661	Product of the distinct prime numbers

The prime factorization of 661 is 661. Since it has a total of 1 prime factors.

Most popular turbo-numbers

8, 4, 76, 16, 290, 923, 5557, 8041, 15048, 4235, 728620, 852514, 7596728, 4826830, 63221832, 89879532, 618241264, 335687722, 6032712905, 1069408898

Basic calculations (n = 661)

Multiplication

n×y

n×2	1322
n×3	1983
n×4	2644
n×5	3305

Division

n÷y

n÷2	330.5
n÷3	220.33333333333
n÷3	165.25
n÷5	132.2

Exponentiation

n^y

n²	436921
n³	288804781
n⁴	190899960241
n⁵	126184873719301

Nth Root

^y√n

²√n	25.709920264365
³√n	8.7109827387101
⁴√n	5.0704950709339
⁵√n	3.6647157266206

Divisors of 661

1, 661

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	662	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	331	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	25.729360660537	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9969788519637	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 661 can be divided by 2 positive divisors. The sum of these divisors (counting 661) is 662, the average is 331.

Base conversion 661

Base	System	Value
2	Binary	1010010101
3	Ternary	220111
4	Quaternary	22111
5	Quinary	10121
6	Senary	3021
8	Octal	1225
10	Decimal	661
12	Duodecimal	471
16	Hexadecimal	295
20	Vigesimal	1d1
36	Base36	id

Cryptographic Hash Functions

md5	3a066bda8c96b9478bb0512f0a43028c
sha1	28903f610228f970292b06382eae94ae10efa9a0
sha256	316c0f93c7fe125865d85d6e7e7a31b79e9a46c414c45078b732080fa22ef2a3
sha512	dd03187dfdcc80b47ed97d1feff0cb797179389ec5c87af1e2591f7a67007d5e5ae0df9bdc4be045c7a1c080b316122b1224beffeddbdbfe7873cb747e2877fa
ripemd-160	c5b83930354d2214f3c22051e727f682bf575aec

661 as geometric shapes

Circle

Radius = n

Diameter	1322
Circumference	4153.1854880457
Area	1372627.8037991

Sphere

Radius = n

Volume	1209742637.7483
Surface area	5490511.2151964
Circumference	4153.1854880457

Square

Length = n

Perimeter	2644
Area	436921
Diagonal	934.79516472862

Cube

Length = n

Surface area	2621526
Volume	288804781
Space diagonal	1144.885583803

Equilateral Triangle

Length = n

Perimeter	1983
Area	189192.34272345
Altitude	572.44279190151

Triangular Pyramid

Length = n

Surface area	189192.34272345
Volume	34035969.847366
Height	311.59838824287