What is the sum of all prime numbers less than 802?

The prime numbers less than 802 are: 2, 3, 5, 7, 11, 13, 17, 19, ... To find their sum, we can use the formula for the sum of a series: n(n+1)/2 = sum of n natural numbers. Using this formula, we can find the sum of the first 11 prime numbers (as 11 is the largest prime number less than 802). Sum = 11(11+1)/2 = 11(12)/2 = 66. Therefore, the sum of all prime numbers less than 802 is 66.

Math question for the number 802: How many 3-digit positive integers are there that are greater than 500 but end in 2?

To find this, we need to determine how many 3-digit integers are greater than 500. Subtract 500 from 1000 to get 500. However, half of the resulting range (250) will be even and the other half (250) will be odd. Since we are only interested in numbers ending in 2, we divide 250 by 5 (as the last digit repeats in a cycle of 5) yielding 50. Hence, there are 50 three-digit positive integers greater than 500 that end in 2.

Math question: What is the square root of 802 multiplied by 5, divided by 2, and rounded to the nearest hundredth?

To find the square root of 802, we first calculate √802 ≈ 28.336. Then, multiplying by 5 gives 28.336 * 5 = 141.68. Finally, dividing by 2 results in 141.68 / 2 = 70.84. Rounding to the nearest hundredth yields 70.84. So, the answer is 70.84.

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

802 (number)

802 is an even 3-digits composite number following 801 and preceding 803. In scientific notation, it is written as 8.02 × 10^2. The sum of its digits is 10. It has a total of 2 prime factors and 4 positive divisors. There are 400 positive integers (up to 802) that are relatively prime to 802.

Interesting facts

802 has 4 divisors, whose sum is 1206
The reverse of 802 is 208
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 3
Sum of Digits 10
Digital Root 1

Name

Name	eight hundred two

Notation

Scientific notation	8.02 × 10^2
Engineering notation	8.02 × 10^0

Prime Factorization of 802

Prime Factorization 2 × 401

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	802	Product of the distinct prime numbers

The prime factorization of 802 is 2 × 401. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 4, 39, 66, 692, 786, 160, 740, 95579, 97034, 311758, 397465, 328113, 1089231, 76540809, 82834819, 788262311, 372971735, 50480056, 812619101

Basic calculations (n = 802)

Multiplication

n×y

n×2	1604
n×3	2406
n×4	3208
n×5	4010

Division

n÷y

n÷2	401
n÷3	267.33333333333
n÷3	200.5
n÷5	160.4

Exponentiation

n^y

n²	643204
n³	515849608
n⁴	413711385616
n⁵	331796531264032

Nth Root

^y√n

²√n	28.319604517013
³√n	9.2909072109025
⁴√n	5.3216167202282
⁵√n	3.809209630567

Divisors of 802

1, 2, 401, 802

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	-801	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 802 can be divided by 4 positive divisors. The sum of these divisors (counting 802) is 1, the average is 0.25.

Base conversion 802

Base	System	Value
2	Binary	1100100010
3	Ternary	1002201
4	Quaternary	30202
5	Quinary	11202
6	Senary	3414
8	Octal	1442
10	Decimal	802
12	Duodecimal	56a
16	Hexadecimal	322
20	Vigesimal	202
36	Base36	ma

Cryptographic Hash Functions

md5	1141938ba2c2b13f5505d7c424ebae5f
sha1	acb033af040717d5654d64ccbf68de6e89ef23f5
sha256	477f4b2cdd3fe2b9fdd7dfb887f98252ef26cecf13eb53289116a1344382256d
sha512	2a813ea6c9215539163ef39a80d763f2e453381dd72cc8b744cc47897dc90ac62f908d6da41a9c294fedb73e0b9faeb2f9f8dd6425a9660f30c2d3e2c634bf7f
ripemd-160	96da82d5d51cfbe5a49eaf285608037a228c6eea

802 as geometric shapes

Circle

Radius = n

Diameter	1604
Circumference	5039.114616358
Area	2020684.9611596

Sphere

Radius = n

Volume	2160785785.1333
Surface area	8082739.8446383
Circumference	5039.114616358

Square

Length = n

Perimeter	3208
Area	643204
Diagonal	1134.1992770232

Cube

Length = n

Surface area	3859224
Volume	515849608
Space diagonal	1389.1047476702

Equilateral Triangle

Length = n

Perimeter	2406
Area	278515.50190788
Altitude	694.55237383512

Triangular Pyramid

Length = n

Surface area	278515.50190788
Volume	60793459.31487
Height	378.06642567441