Math question: What is the sum of the digits in the number 842?

To find the sum of the digits in 842, we can break it down into its place values. The digit 8 is in the hundreds place, 4 is in the tens place, and 2 is in the ones place. Adding them all together: 8 + 4 + 2 equals 14. Therefore, the sum of the digits in 842 is 14.

Math Question: If 842 is divided by 7 and then multiplied by 34, what is the result?

To solve this question, we first divide 842 by 7, which yields 120. Then, we multiply 120 by 34, resulting in 4080. Therefore, the answer is 4080.

Math question: What is the closest prime number to 842?

By examining the numbers greater and smaller than 842, we can see that the closest prime numbers are 839 and 853. While 839 is smaller than 842, 853 is larger. Therefore, the closest prime number to 842 is 839.

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

842 (number)

842 is an even 3-digits composite number following 841 and preceding 843. In scientific notation, it is written as 8.42 × 10^2. The sum of its digits is 14. It has a total of 2 prime factors and 4 positive divisors. There are 420 positive integers (up to 842) that are relatively prime to 842.

Interesting facts

842 has 4 divisors, whose sum is 1266
The reverse of 842 is 248
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 3
Sum of Digits 14
Digital Root 5

Name

Name	eight hundred forty-two

Notation

Scientific notation	8.42 × 10^2
Engineering notation	8.42 × 10^0

Prime Factorization of 842

Prime Factorization 2 × 421

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	842	Product of the distinct prime numbers

The prime factorization of 842 is 2 × 421. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 5, 67, 25, 997, 353, 330, 493, 36865, 63792, 713902, 751505, 5091935, 8056846, 37463745, 74518297, 837613959, 485683520, 9608034487, 2818056468

Basic calculations (n = 842)

Multiplication

n×y

n×2	1684
n×3	2526
n×4	3368
n×5	4210

Division

n÷y

n÷2	421
n÷3	280.66666666667
n÷3	210.5
n÷5	168.4

Exponentiation

n^y

n²	708964
n³	596947688
n⁴	502629953296
n⁵	423214420675232

Nth Root

^y√n

²√n	29.017236257094
³√n	9.4428704284482
⁴√n	5.3867649157072
⁵√n	3.8464706087427

Divisors of 842

1, 2, 421, 842

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	-841	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 842 can be divided by 4 positive divisors. The sum of these divisors (counting 842) is 1, the average is 0.25.

Base conversion 842

Base	System	Value
2	Binary	1101001010
3	Ternary	1011012
4	Quaternary	31022
5	Quinary	11332
6	Senary	3522
8	Octal	1512
10	Decimal	842
12	Duodecimal	5a2
16	Hexadecimal	34a
20	Vigesimal	222
36	Base36	ne

Cryptographic Hash Functions

md5	fc3cf452d3da8402bebb765225ce8c0e
sha1	62362fbf882221470f099d8d0a119df93ce19831
sha256	ac93f3a0fee5afa2d9399d5d0f257dc92bbde89b1e48452e1bfac3c5c1dc99db
sha512	be335b63befa805aa1f4d8710bdb8c670993fc29eff65aeec815054086f5e1792a923f02f208e1ed82f7f594c51c371b2416f4420bcfd024a02446b2d3d8b966
ripemd-160	2421761dd96697272b4f1b0e3a3175fc18dd356b

842 as geometric shapes

Circle

Radius = n

Diameter	1684
Circumference	5290.4420286452
Area	2227276.0940596

Sphere

Radius = n

Volume	2500488628.2643
Surface area	8909104.3762385
Circumference	5290.4420286452

Square

Length = n

Perimeter	3368
Area	708964
Diagonal	1190.7678195181

Cube

Length = n

Surface area	4253784
Volume	596947688
Space diagonal	1458.386779973

Equilateral Triangle

Length = n

Perimeter	2526
Area	306990.41718432
Altitude	729.1933899865

Triangular Pyramid

Length = n

Surface area	306990.41718432
Volume	70350959.699739
Height	396.92260650605