642790 (number)

642790 is an even 6-digits composite number following 642789 and preceding 642791. In scientific notation, it is written as 6.42790 × 10^5. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 257112 positive integers (up to 642790) that are relatively prime to 642790.

Interesting facts

Basic properties

Name

Name six hundred forty-two thousand seven hundred ninety

Notation

Scientific notation 6.42790 × 10^5
Engineering notation 6.42790 × 10^3

Prime Factorization of 642790

Prime Factorization 2 × 5 × 64279

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 642790
Product of the distinct prime numbers

The prime factorization of 642790 is 2 × 5 × 64279. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 642790)

Multiplication

n×y
n×2 1285580
n×3 1928370
n×4 2571160
n×5 3213950

Division

n÷y
n÷2 321395
n÷3 214263.33333333
n÷3 160697.5
n÷5 128558

Exponentiation

ny
n2 413178984100
n3 265587319189639000
n4 1.7071687290191E+23
n5 1.0973509873262E+29

Nth Root

y√n
2√n 801.74185371602
3√n 86.302432587283
4√n 28.315046419104
5√n 14.508209638293

Divisors of 642790

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 -642789
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 642790 can be divided by 8 positive divisors. The sum of these divisors (counting 642790) is 1, the average is 0.125.

Base conversion 642790

Base System Value
2 Binary 10011100111011100110
3 Ternary 1012122202001
4 Quaternary 2130323212
5 Quinary 131032130
6 Senary 21435514
8 Octal 2347346
10 Decimal 642790
12 Duodecimal 26bb9a
16 Hexadecimal 9cee6
20 Vigesimal 406ja
36 Base36 drza

Cryptographic Hash Functions

md5 fc0deade50e0b92ef5e6dd7fd27ce637
sha1 ccdffb62110d16308ad23c55ef285f246bd1da0a
sha256 4051ee0ffb528c391ec57e7c771204c45675b9f1f364dc4839632084121ae58f
sha512 3126f207960fd88215f04ace08706a2d5167d26a3d52b32cf14a715ce1df436e1c4afd677996117a117382afba66409fd2ede19b2eb058006d1115c8f7e823ad
ripemd-160 865fe627cc9fde9fd64023d3822a3c935c4a2927

642790 as geometric shapes

Circle

Radius = n
Diameter 1285580
Circumference 4038768.683602
Area 1298040061066.3

Sphere

Radius = n
Volume 1.112489561137E+18
Surface area 5192160244265
Circumference 4038768.683602

Square

Length = n
Perimeter 2571160
Area 413178984100
Diagonal 909042.3357578

Cube

Length = n
Surface area 2479073904600
Volume 265587319189639000
Space diagonal 1113344.9385972

Equilateral Triangle

Length = n
Perimeter 1928370
Area 178911748270.22
Altitude 556672.4692986

Triangular Pyramid

Length = n
Surface area 178911748270.22
Volume 3.1299765732692E+16
Height 303014.11191927