642731 is an odd 6-digits composite number following 642730
and preceding 642732 . In scientific notation, it is written as 6.42731 × 10^5.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 617760 positive integers (up to 642731) that are relatively prime to 642731.
642731 has 8 divisors, whose sum is 668304
The reverse of 642731 is 137246
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 23
Digital Root 5
Name
six hundred forty-two thousand seven hundred thirty-one
Scientific notation
6.42731 × 10^5
Engineering notation
6.42731 × 10^3
Prime Factorization
53 × 67 × 181
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
642731
Product of the distinct prime numbers
The prime factorization of 642731 is 53 × 67 × 181.
Since it has a total of 3 prime factors.
7 , 10 , 41 , 17 , 534 , 152 , 9275 , 4383 , 33148 , 31575 , 336021 , 331470 , 2470848 , 8369137 , 18515284 , 54253437 , 731062328 , 561898659 , 3573390267 , 6203221649
n×2
1285462
n×3
1928193
n×4
2570924
n×5
3213655
n÷2
321365.5
n÷3
214243.66666667
n÷3
160682.75
n÷5
128546.2
n2
413103138361
n3
265514193221903891
n4
1.7065420292371E+23
n5
1.0968474649936E+29
2 √n
801.70505798579
3 √n
86.299792015547
4 √n
28.314396655867
5 √n
14.507943294449
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
-642730
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 642731 can be divided by 8 positive divisors.
The sum of these divisors (counting 642731) is 1, the average is 0.125.
Base
System
Value
2
Binary
10011100111010101011
3
Ternary
1012122122212
4
Quaternary
2130322223
5
Quinary
131031411
6
Senary
21435335
8
Octal
2347253
10
Decimal
642731
12
Duodecimal
26bb4b
16
Hexadecimal
9ceab
20
Vigesimal
406gb
36
Base36
drxn
md5
31c625d9260a1d41c85b5cf9c43c040b
sha1
031430dc518164c6d1cb405740f96f9385674ba0
sha256
3c75a9404e534405676181fba526a728c0a81d47c37603cb46f0fce2a6797884
sha512
166c910ee048580d28a12cd579d888b36631bfcdb0f7a7a49997e16ac42cec515648c3a748483971189c0566d71075a52dbfd3994c225233047b5ddef5535039
ripemd-160
c64bf8657d8f86dcd0310e3fd6f45b09786c0a33
Diameter
1285462
Circumference
4038397.9756688
Area
1297801784649.8
Volume
1.1121832517997E+18
Surface area
5191207138599.2
Circumference
4038397.9756688
Perimeter
2570924
Area
413103138361
Diagonal
908958.89715762
Surface area
2478618830166
Volume
265514193221903891
Space diagonal
1113242.7475996
Perimeter
1928193
Area
178878906101.85
Altitude
556621.37379978
Surface area
178878906101.85
Volume
3.1291147754747E+16
Height
302986.29905254