642705 is an odd 6-digits composite number following 642704
and preceding 642706 . In scientific notation, it is written as 6.42705 × 10^5.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 293760 positive integers (up to 642705) that are relatively prime to 642705.
642705 has 8 divisors, whose sum is 783616
The reverse of 642705 is 507246
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 24
Digital Root 6
Name
six hundred forty-two thousand seven hundred five
Scientific notation
6.42705 × 10^5
Engineering notation
6.42705 × 10^3
Prime Factorization
15 × 7 × 6121
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
642705
Product of the distinct prime numbers
The prime factorization of 642705 is 15 × 7 × 6121.
Since it has a total of 3 prime factors.
7 , 1 , 70 , 16 , 254 , 128 , 2563 , 6405 , 59891 , 20640 , 855516 , 333733 , 3993978 , 7791511 , 16188297 , 27623313 , 517220194 , 57531649 , 5882522981 , 3432913
n×2
1285410
n×3
1928115
n×4
2570820
n×5
3213525
n÷2
321352.5
n÷3
214235
n÷3
160676.25
n÷5
128541
n2
413069717025
n3
265481972480552625
n4
1.7062659112311E+23
n5
1.0966256324778E+29
2 √n
801.68884238213
3 √n
86.298628322468
4 √n
28.314110305325
5 √n
14.507825916376
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
-642704
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 642705 can be divided by 8 positive divisors.
The sum of these divisors (counting 642705) is 1, the average is 0.125.
Base
System
Value
2
Binary
10011100111010010001
3
Ternary
1012122121220
4
Quaternary
2130322101
5
Quinary
131031310
6
Senary
21435253
8
Octal
2347221
10
Decimal
642705
12
Duodecimal
26bb29
16
Hexadecimal
9ce91
20
Vigesimal
406f5
36
Base36
drwx
md5
2ac0ed63831d2a509c85c94e9db749c6
sha1
fea0dcd65deb1faca5b6e620d66ab834a8e91e78
sha256
c154e49e0c41464ca6440ea31a554deeb0fb87ba19cdb617ee0b85e2eccb3099
sha512
36a3ff89a0171ad0d05f94669499560896e5e25320d55e2961e4314aa2da76bc16bc63dcda8c6c8562d568fead8636d8a2475e2580dfc67261865e4ea2d5e07f
ripemd-160
b8d7b4b2d0cdade586baba1fef787db5827181b2
Diameter
1285410
Circumference
4038234.6128509
Area
1297696788426.2
Volume
1.1120482858739E+18
Surface area
5190787153704.6
Circumference
4038234.6128509
Perimeter
2570820
Area
413069717025
Diagonal
908922.127605
Surface area
2478418302150
Volume
265481972480552625
Space diagonal
1113197.7142786
Perimeter
1928115
Area
178864434238.85
Altitude
556598.85713928
Surface area
178864434238.85
Volume
3.1287350503963E+16
Height
302974.042535