1640668865 is an odd 10-digits composite number following 1640668864
and preceding 1640668866 . In scientific notation, it is written as 1.640668865 × 10^9.
The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors.
There are 1175401920 positive integers (up to 1640668865) that are relatively prime to 1640668865.
1640668865 has 8 divisors, whose sum is 1695435840
The reverse of 1640668865 is 5688660461
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 50
Digital Root 5
Name
one billion six hundred forty million six hundred sixty-eight thousand eight hundred sixty-five
Scientific notation
1.640668865 × 10^9
Engineering notation
1.640668865 × 10^9
Prime Factorization
55 × 67 × 445229
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1640668865
Product of the distinct prime numbers
The prime factorization of 1640668865 is 55 × 67 × 445229.
Since it has a total of 3 prime factors.
4 , 4 , 49 , 83 , 642 , 183 , 324 , 1109 , 96035 , 5224 , 353283 , 752517 , 5460602 , 3667501 , 35528400 , 6147111 , 389771787 , 956665630 , 4014863175 , 8908796998
n×2
3281337730
n×3
4922006595
n×4
6562675460
n×5
8203344325
n÷2
820334432.5
n÷3
546889621.66667
n÷3
410167216.25
n÷5
328133773
n2
2691794324580388225
n3
4.4163431393227E+27
n4
7.2457566858432E+36
n5
1.1887887397829E+46
2 √n
40505.170842745
3 √n
1179.4340063072
4 √n
201.25896462703
5 √n
69.663323076641
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
-1640668864
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 1640668865 can be divided by 8 positive divisors.
The sum of these divisors (counting 1640668865) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100001110010101001111011000001
3
Ternary
11020100012121120112
4
Quaternary
1201302221323001
5
Quinary
11330002400430
6
Senary
430445121105
8
Octal
14162517301
10
Decimal
1640668865
12
Duodecimal
399559195
16
Hexadecimal
61ca9ec1
20
Vigesimal
15ce3c35
36
Base36
r4t875
md5
7a3c38b41977e259cbd111247757b6ec
sha1
68c40290a9f07cd874f646de4ff90883da88ccfa
sha256
c9ca3b956a734b28b57d7434f81daa23a77305e03e712b759e0ee6ffecca127c
sha512
c252e7b8a89d70353c45b3894238f12d3cddecbcf6b3db41d9b474c1d7eb35848f9cf7eb6c7142f6ccc1df429fd935e28f7eb976b588754af0ad5ab61ff2cf21
ripemd-160
9662d2c801ef0b16bb373f8aa1eec9c230649aa4
Diameter
3281337730
Circumference
10308626506.515
Area
8.4565212750764E+18
Volume
1.8499134882971E+28
Surface area
3.3826085100306E+19
Circumference
10308626506.515
Perimeter
6562675460
Area
2691794324580388225
Diagonal
2320256160.2463
Surface area
1.6150765947482E+19
Volume
4.4163431393227E+27
Space diagonal
2841721832.5764
Perimeter
4922006595
Area
1.1655811334247E+18
Altitude
1420860916.2882
Surface area
1.1655811334247E+18
Volume
5.204710303103E+26
Height
773418720.08209