Math question: What is the sum of the prime factors of 1540?

To find the prime factors of 1540, we first break it down into its prime factorization: 1540 = 2^2 * 5 * 7 * 11. Thus, the prime factors are 2, 5, 7, and 11. Summing these gives us 2 + 5 + 7 + 11 = 25. Hence, the sum of the prime factors of 1540 is 25.

Math question: What is the sum of all the even factors of 1540? Explanation: To find the sum of all the even factors of 1540, we need to determine all the factors of 1540 that are divisible by 2. The prime factorization of 1540 is 2^2 × 5 × 7 × 11. The even factors are obtained by fixing the powers of 2 between 0 and 2 (inclusive) and combining them with the odd factors. We have (2^0)(5)(7)(11), (2^1)(5)(7)(11), and (2^2)(5)(7)(11). Calculating these, we find the even factors as 770, 1540, and 3080. Now we sum them up, 770 + 1540 + 3080 = 5390.

The sum of all the even factors of 1540 is 5390.

Math question: What is the sum of the digits when 1540 is multiplied by 5 and then divided by 7, subtracted by 1500, and finally divided by the square root of 49?

To find the answer, we follow the given steps. First, 1540 multiplied by 5 is 7700. When we divide 7700 by 7, we get 1100. Subtracting 1500 from 1100 gives us -400. Now, by taking the square root of 49, which is 7, we can divide -400 by 7. This leads us to -57.14. So, the answer after performing these calculations on the number 1540 is approximately -57.14.

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

1540 (number)

1540 is an even 4-digits composite number following 1539 and preceding 1541. In scientific notation, it is written as 1.540 × 10^3. The sum of its digits is 10. It has a total of 5 prime factors and 24 positive divisors. There are 480 positive integers (up to 1540) that are relatively prime to 1540.

Interesting facts

1540 has 24 divisors, whose sum is 4032
The reverse of 1540 is 0451
Previous prime number is 7

Basic properties

Is Prime? no
Number parity even
Number length 4
Sum of Digits 10
Digital Root 1

Name

Name	one thousand five hundred forty

Notation

Scientific notation	1.540 × 10^3
Engineering notation	1.540 × 10^3

Prime Factorization of 1540

Prime Factorization 2 × 2 × 5 × 7 × 11

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	5	Total number of prime factors
rad	Radical	770	Product of the distinct prime numbers

The prime factorization of 1540 is 2 × 2 × 5 × 7 × 11. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 5, 22, 53, 272, 428, 8229, 3350, 63596, 95106, 629500, 978477, 9887171, 7637250, 69222203, 69564914, 189981438, 476920808, 5935528186, 7429402070

Basic calculations (n = 1540)

Multiplication

n×y

n×2	3080
n×3	4620
n×4	6160
n×5	7700

Division

n÷y

n÷2	770
n÷3	513.33333333333
n÷3	385
n÷5	308

Exponentiation

n^y

n²	2371600
n³	3652264000
n⁴	5624486560000
n⁵	8661709302400000

Nth Root

^y√n

²√n	39.242833740697
³√n	11.548003502915
⁴√n	6.2644100872067
⁵√n	4.340144051197

Divisors of 1540

1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540

24 divisors

τ	Total Divisors	24	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-1539	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.041666666666667	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	24	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1540 can be divided by 24 positive divisors. The sum of these divisors (counting 1540) is 1, the average is 0.041666666666667.

Base conversion 1540

Base	System	Value
2	Binary	11000000100
3	Ternary	2010001
4	Quaternary	120010
5	Quinary	22130
6	Senary	11044
8	Octal	3004
10	Decimal	1540
12	Duodecimal	a84
16	Hexadecimal	604
20	Vigesimal	3h0
36	Base36	16s

Cryptographic Hash Functions

md5	cda72177eba360ff16b7f836e2754370
sha1	0de7f57bd4db22d7e4a43004aea93b1f0a484259
sha256	c73c63198a1338f0d19547e3d07db9dc25babedc30ae35b80426d48afe73624c
sha512	a317aaae56af82ef6f653ee4554a2f95a93a7a2f9caf20603e7d9a2ed59ec43f1edc3a9b64437d8be4555cc608872ea65e6db7205f734770720ce5d7ec348ae1
ripemd-160	0aaf9cd770704db4090e35978015f3f8d208d8b6

1540 as geometric shapes

Circle

Radius = n

Diameter	3080
Circumference	9676.1053730566
Area	7450601.1372536

Sphere

Radius = n

Volume	15298567668.494
Surface area	29802404.549014
Circumference	9676.1053730566

Square

Length = n

Perimeter	6160
Area	2371600
Diagonal	2177.8888860546

Cube

Length = n

Surface area	14229600
Volume	3652264000
Space diagonal	2667.3582436561

Equilateral Triangle

Length = n

Perimeter	4620
Area	1026932.9238076
Altitude	1333.679121828

Triangular Pyramid

Length = n

Surface area	1026932.9238076
Volume	430423440.18058
Height	725.96296201819