642820281 (number)

642820281 is an odd 9-digits composite number following 642820280 and preceding 642820282. In scientific notation, it is written as 6.42820281 × 10^8. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 421283232 positive integers (up to 642820281) that are relatively prime to 642820281.

Interesting facts

Basic properties

Name

Name six hundred forty-two million eight hundred twenty thousand two hundred eighty-one

Notation

Scientific notation 6.42820281 × 10^8
Engineering notation 6.42820281 × 10^6

Prime Factorization of 642820281

Prime Factorization 3 × 59 × 3631753

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 642820281
Product of the distinct prime numbers

The prime factorization of 642820281 is 3 × 59 × 3631753. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 8, 85, 58, 183, 822, 8831, 949, 99122, 10841, 910022, 342595, 4869286, 5055357, 76918995, 75156176, 355719172, 862849133, 8652767762, 9298725751

Basic calculations (n = 642820281)

Multiplication

n×y
n×2 1285640562
n×3 1928460843
n×4 2571281124
n×5 3214101405

Division

n÷y
n÷2 321410140.5
n÷3 214273427
n÷3 160705070.25
n÷5 128564056.2

Exponentiation

ny
n2 413217913664918961
n3 2.6562485537632E+26
n4 1.7074904417359E+35
n5 1.0976094855615E+44

Nth Root

y√n
2√n 25353.900705809
3√n 863.03787764415
4√n 159.22908247493
5√n 57.758767061659

Divisors of 642820281

1, 3, 59, 177, 3631753, 10895259, 214273427, 642820281

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -642820280
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 642820281 can be divided by 8 positive divisors. The sum of these divisors (counting 642820281) is 1, the average is 0.125.

Base conversion 642820281

Base System Value
2 Binary 100110010100001010100010111001
3 Ternary 1122210120122122120
4 Quaternary 212110022202321
5 Quinary 2304030222111
6 Senary 143441511453
8 Octal 4624124271
10 Decimal 642820281
12 Duodecimal 15b342589
16 Hexadecimal 2650a8b9
20 Vigesimal a0hcae1
36 Base36 ampvax

Cryptographic Hash Functions

md5 34b720613feccad8d35af87515cc0034
sha1 71e8637d6d66a5919ef21da63a94d9ecacaa4a98
sha256 c572ceec894be37b2857d0593d08005179ee4049730f58e2d651c8b526057c98
sha512 ec9cf32a946e8389e6bcce38157f557061ed21aeed5e360a7136b9dfd7b4233b6bfe5d9a3b4512f1a41a521d2e8102ca89eea7a16a42226d68214ffc7782d826
ripemd-160 a225115f9685b5af0a30f8c7bd4dc95e6bf1da1b

642820281 as geometric shapes

Circle

Radius = n
Diameter 1285640562
Circumference 4038958944.7363
Area 1.2981623619014E+18

Sphere

Radius = n
Volume 1.1126467923481E+27
Surface area 5.1926494476056E+18
Circumference 4038958944.7363

Square

Length = n
Perimeter 2571281124
Area 413217913664918961
Diagonal 909085159.55868

Cube

Length = n
Surface area 2479307481989513766
Volume 2.6562485537632E+26
Space diagonal 1113397386.8277

Equilateral Triangle

Length = n
Perimeter 1928460843
Area 1.7892860526631E+17
Altitude 556698693.41385

Triangular Pyramid

Length = n
Surface area 1.7892860526631E+17
Volume 3.1304189414715E+25
Height 303028386.51956