Math question: What is the sum of the prime factors of 381?

The prime factors of 381 are 3 and 127. Thus, the sum of the prime factors of 381 is 3 + 127 = 130.

Math question: What is the sum of the digits in the number 381, when squared and divided by the cube root of 381?

To solve this, we start by squaring the number 381, which gives us 145161. Then, we find the cube root of 381, which is approximately 7.559. Next, we divide the squared number, 145161, by the cube root of 381, resulting in approximately 19178.807. Finally, we calculate the sum of the digits in this number - 1 + 9 + 1 + 7 + 8 + 8 + 0 + 7 = 41. Therefore, the answer is 41. In summary, the sum of the digits in the number 381, when squared and divided by the cube root of 381, is 41.

Math Question: What is the sum of all prime factors of the number 381?

To find the prime factors of 381, we divide it successively by prime numbers. Starting with the smallest prime, 2 doesn't divide 381. Next, 3 divides 381 once, yielding 127. Continuing, we find that 127 is a prime number. Therefore, the prime factors of 381 are 3 and 127. Finally, the sum of these prime factors is 3 + 127 = 130.

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

381 (number)

381 is an odd 3-digits composite number following 380 and preceding 382. In scientific notation, it is written as 3.81 × 10^2. The sum of its digits is 12. It has a total of 2 prime factors and 4 positive divisors. There are 252 positive integers (up to 381) that are relatively prime to 381.

Interesting facts

381 has 4 divisors, whose sum is 512
The reverse of 381 is 183
Previous prime number is 3

Basic properties

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

Name

Name	three hundred eighty-one

Notation

Scientific notation	3.81 × 10^2
Engineering notation	3.81 × 10^0

Prime Factorization of 381

Prime Factorization 3 × 127

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	381	Product of the distinct prime numbers

The prime factorization of 381 is 3 × 127. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 5, 7, 2, 385, 729, 9058, 1825, 46506, 44543, 521139, 948759, 6456152, 7252756, 84257494, 13797285, 833527582, 175816706, 6296685364, 8168540616

Basic calculations (n = 381)

Multiplication

n×y

n×2	762
n×3	1143
n×4	1524
n×5	1905

Division

n÷y

n÷2	190.5
n÷3	127
n÷3	95.25
n÷5	76.2

Exponentiation

n^y

n²	145161
n³	55306341
n⁴	21071715921
n⁵	8028323765901

Nth Root

^y√n

²√n	19.519221295943
³√n	7.249504524205
⁴√n	4.4180562803051
⁵√n	3.2823508066443

Divisors of 381

1, 3, 127, 381

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	-380	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 381 can be divided by 4 positive divisors. The sum of these divisors (counting 381) is 1, the average is 0.25.

Base conversion 381

Base	System	Value
2	Binary	101111101
3	Ternary	112010
4	Quaternary	11331
5	Quinary	3011
6	Senary	1433
8	Octal	575
10	Decimal	381
12	Duodecimal	279
16	Hexadecimal	17d
20	Vigesimal	j1
36	Base36	al

Cryptographic Hash Functions

md5	00ec53c4682d36f5c4359f4ae7bd7ba1
sha1	00f7eea0d077127d2045e251487cfe61189614c7
sha256	392a52e4f77c40bf3321dc2feac356fac2a906a80c961748170af4ce2bce1e6a
sha512	5a8ae2ba9ad59811ccf455b8b17c4de8f0e7ce884cc2bd90a60b4bb9280f589dd0191a3ab4efba5c4e3eb381a923dffdf3816d5b00f055bb259107e42d7e6f98
ripemd-160	e672dbebd4a5944ddeade5ab8e3d2a69e8f62755

381 as geometric shapes

Circle

Radius = n

Diameter	762
Circumference	2393.8936020354
Area	456036.73118775

Sphere

Radius = n

Volume	231666659.44338
Surface area	1824146.924751
Circumference	2393.8936020354

Square

Length = n

Perimeter	1524
Area	145161
Diagonal	538.81536726415

Cube

Length = n

Surface area	870966
Volume	55306341
Space diagonal	659.91135768374

Equilateral Triangle

Length = n

Perimeter	1143
Area	62856.556819376
Altitude	329.95567884187

Triangular Pyramid

Length = n

Surface area	62856.556819376
Volume	6517914.7939526
Height	179.60512242138