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.
642790 has 8 divisors, whose sum is 1157040
The reverse of 642790 is 097246
Previous prime number is 5
Is Prime? no
Number parity even
Number length 6
Sum of Digits 28
Digital Root 1
Name
six hundred forty-two thousand seven hundred ninety
Scientific notation
6.42790 × 10^5
Engineering notation
6.42790 × 10^3
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.
4 , 9 , 93 , 19 , 267 , 188 , 3960 , 9638 , 50745 , 66658 , 369455 , 808372 , 7859016 , 3039513 , 93802426 , 45244940 , 358731953 , 702570177 , 535857858 , 681984103
n×2
1285580
n×3
1928370
n×4
2571160
n×5
3213950
n÷2
321395
n÷3
214263.33333333
n÷3
160697.5
n÷5
128558
n2
413178984100
n3
265587319189639000
n4
1.7071687290191E+23
n5
1.0973509873262E+29
2 √n
801.74185371602
3 √n
86.302432587283
4 √n
28.315046419104
5 √n
14.508209638293
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
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
md5
fc0deade50e0b92ef5e6dd7fd27ce637
sha1
ccdffb62110d16308ad23c55ef285f246bd1da0a
sha256
4051ee0ffb528c391ec57e7c771204c45675b9f1f364dc4839632084121ae58f
sha512
3126f207960fd88215f04ace08706a2d5167d26a3d52b32cf14a715ce1df436e1c4afd677996117a117382afba66409fd2ede19b2eb058006d1115c8f7e823ad
ripemd-160
865fe627cc9fde9fd64023d3822a3c935c4a2927
Diameter
1285580
Circumference
4038768.683602
Area
1298040061066.3
Volume
1.112489561137E+18
Surface area
5192160244265
Circumference
4038768.683602
Perimeter
2571160
Area
413178984100
Diagonal
909042.3357578
Surface area
2479073904600
Volume
265587319189639000
Space diagonal
1113344.9385972
Perimeter
1928370
Area
178911748270.22
Altitude
556672.4692986
Surface area
178911748270.22
Volume
3.1299765732692E+16
Height
303014.11191927