640775 is an odd 6-digits composite number following 640774
and preceding 640776 . In scientific notation, it is written as 6.40775 × 10^5.
The sum of its digits is 29. It has a total of 5 prime factors and 18 positive divisors.
There are 478800 positive integers (up to 640775) that are relatively prime to 640775.
640775 has 18 divisors, whose sum is 850392
The reverse of 640775 is 577046
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 29
Digital Root 2
Name
six hundred forty thousand seven hundred seventy-five
Scientific notation
6.40775 × 10^5
Engineering notation
6.40775 × 10^3
Prime Factorization
5 × 5 × 19 × 19 × 71
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
6745
Product of the distinct prime numbers
The prime factorization of 640775 is 5 × 5 × 19 × 19 × 71.
Since it has a total of 5 prime factors.
8 , 6 , 73 , 48 , 527 , 813 , 2158 , 4560 , 73734 , 24846 , 750137 , 608499 , 2414551 , 4127198 , 75156865 , 56483591 , 47412996 , 422426319 , 6817606672 , 3737680714
n×2
1281550
n×3
1922325
n×4
2563100
n×5
3203875
n÷2
320387.5
n÷3
213591.66666667
n÷3
160193.75
n÷5
128155
n2
410592600625
n3
263097473665484375
n4
1.68586283688E+23
n5
1.0802587593018E+29
2 √n
800.48422845175
3 √n
86.212158713268
4 √n
28.292829983085
5 √n
14.499102225812
1 , 5 , 19 , 25 , 71 , 95 , 355 , 361 , 475 , 1349 , 1775 , 1805 , 6745 , 9025 , 25631 , 33725 , 128155 , 640775
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-640774
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 640775 can be divided by 18 positive divisors.
The sum of these divisors (counting 640775) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
10011100011100000111
3
Ternary
1012112222102
4
Quaternary
2130130013
5
Quinary
131001100
6
Senary
21422315
8
Octal
2343407
10
Decimal
640775
12
Duodecimal
26a99b
16
Hexadecimal
9c707
20
Vigesimal
401if
36
Base36
dqfb
md5
9fc951804d121d7f16a6247a9db87669
sha1
f51eb0cc2761c3664ebb0d1922dd42e3f8e21daf
sha256
e4772cefbc4637ba464668e73697298f7931926c6e1072a614ee69731229c4f1
sha512
fb2fa8c7f2ad0dfa201822d4ee657ed944f5222955d8b27c95dc4e53dd7f528a68cf4d0271465f90d57a23bc1d52b0e76c8764bdec07570a4f06822f9aa7ff4d
ripemd-160
bc0d4942f414a36b1987a73fa3ceb56a21c4c51a
Diameter
1281550
Circumference
4026108.065208
Area
1289914697741.8
Volume
1.102060120594E+18
Surface area
5159658790967.3
Circumference
4026108.065208
Perimeter
2563100
Area
410592600625
Diagonal
906192.69542962
Surface area
2463555603750
Volume
263097473665484375
Space diagonal
1109854.8562199
Perimeter
1922325
Area
177791811373.58
Altitude
554927.42810997
Surface area
177791811373.58
Volume
3.1006334623652E+16
Height
302064.23180987