642743261 is an odd 9-digits composite number following 642743260
and preceding 642743262 . In scientific notation, it is written as 6.42743261 × 10^8.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 632554560 positive integers (up to 642743261) that are relatively prime to 642743261.
642743261 has 8 divisors, whose sum is 652950144
The reverse of 642743261 is 162347246
Previous prime number is 1231
Is Prime? no Number parity odd Number length 9 Sum of Digits 35 Digital Root 8
Name
six hundred forty-two million seven hundred forty-three thousand two hundred sixty-one
Scientific notation
6.42743261 × 10^8
Engineering notation
6.42743261 × 10^6
Prime Factorization
67 × 1231 × 7793
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
642743261 Product of the distinct prime numbers
The prime factorization of 642743261 is 67 × 1231 × 7793.
Since it has a total of 3 prime factors.
9 , 1 , 49 , 58 , 866 , 790 , 1795 , 3679 , 30705 , 26342 , 870028 , 126698 , 7929659 , 8713508 , 86917442 , 62203451 , 494280407 , 29469522 , 900106943 , 6224564223
n×2
1285486522
n×3
1928229783
n×4
2570973044
n×5
3213716305
n÷2
321371630.5
n÷3
214247753.66667
n÷3
160685815.25
n÷5
128548652.2
n2
413118899560914121
n3
2.6552938868451E+26
n4
1.7066722517442E+35
n5
1.0969520885443E+44
2 √n25352.381761878
3 √n863.00340775459
4 √n159.22431272227
5 √n57.757382913215
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
-642743260 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 642743261 can be divided by 8 positive divisors.
The sum of these divisors (counting 642743261) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110010011110111101111011101
3
Ternary
1122210102201222222
4
Quaternary
212103313233131
5
Quinary
2304020241021
6
Senary
143440115125
8
Octal
4623675735
10
Decimal
642743261
12
Duodecimal
15b305aa5
16
Hexadecimal
264f7bdd
20
Vigesimal
a0h2i31
36
Base36
amo7vh
md5
409bb1d3f0875575bb34d0de15efc149
sha1
97b663b307822c58793b99cede1f3caa408b7155
sha256
13c9a0e7d515c5931c1b7adf507ccbbe8d575f984ad4972d6ab552888cfebfde
sha512
1cc3cf6c5dfea295812980212c75786fad670689e8239c2f40cf6ba1530c20c4fb8cc7449de4739be264339b18e3aa4517a497b9ccf9d14f5abf9fd31bfae80a
ripemd-160
25cec5d72f3c9441e814e76def56386da2893252
Diameter
1285486522
Circumference
4038475013.8039
Area
1.2978512999197E+18
Volume
1.1122469024046E+27
Surface area
5.1914051996787E+18
Circumference
4038475013.8039
Perimeter
2570973044
Area
413118899560914121
Diagonal
908976236.83011
Surface area
2478713397365484726
Volume
2.6552938868451E+26
Space diagonal
1113263984.2745
Perimeter
1928229783
Area
1.7888573090161E+17
Altitude
556631992.13725
Surface area
1.7888573090161E+17
Volume
3.129293855719E+25
Height
302992078.94337