681566168 is an even 9-digits composite number following 681566167
and preceding 681566169 . In scientific notation, it is written as 6.81566168 × 10^8.
The sum of its digits is 47. It has a total of 5 prime factors and 16 positive divisors.
There are 332857728 positive integers (up to 681566168) that are relatively prime to 681566168.
681566168 has 16 divisors, whose sum is 1307656680
The reverse of 681566168 is 861665186
Previous prime number is 43
Is Prime? no
Number parity even
Number length 9
Sum of Digits 47
Digital Root 2
Name
six hundred eighty-one million five hundred sixty-six thousand one hundred sixty-eight
Scientific notation
6.81566168 × 10^8
Engineering notation
6.81566168 × 10^6
Prime Factorization
2 × 2 × 2 × 43 × 1981297
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
170391542
Product of the distinct prime numbers
The prime factorization of 681566168 is 2 × 2 × 2 × 43 × 1981297.
Since it has a total of 5 prime factors.
1 , 4 , 96 , 83 , 13 , 556 , 5847 , 9852 , 4757 , 71732 , 215826 , 734716 , 5548511 , 8676722 , 11361690 , 97305582 , 86611502 , 834452846 , 2303864924 , 4674596969
n×2
1363132336
n×3
2044698504
n×4
2726264672
n×5
3407830840
n÷2
340783084
n÷3
227188722.66667
n÷3
170391542
n÷5
136313233.6
n2
464532441362204224
n3
3.1660959597092E+26
n4
2.1579038907793E+35
n5
1.4707542857507E+44
2 √n
26106.822250132
3 √n
880.04053187967
4 √n
161.57605716854
5 √n
58.438842451635
1 , 2 , 4 , 8 , 43 , 86 , 172 , 344 , 1981297 , 3962594 , 7925188 , 15850376 , 85195771 , 170391542 , 340783084 , 681566168
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-681566167
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 681566168 can be divided by 16 positive divisors.
The sum of these divisors (counting 681566168) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101000100111111101111111011000
3
Ternary
1202111111011000102
4
Quaternary
220213331333120
5
Quinary
2343440104133
6
Senary
151344154532
8
Octal
5047757730
10
Decimal
681566168
12
Duodecimal
170308a48
16
Hexadecimal
289fdfd8
20
Vigesimal
acjff88
36
Base36
b9sbtk
md5
06dfe826dfde67a0e5ed3901acaf9e72
sha1
463a249cdbd264ccb6e946e39c68279b50bc057c
sha256
e37c70e880f4666fe89d0d06d3b7947101c684d21897f413f66ece98b1784ead
sha512
6b7694f2332a9c6cdc380a675dd12fb8f62562e73a7b6b52fb0a5d5c7b99bf04bb8d2fbfc61b135155eed46c5125c82e6ea09149fce2cf0c4f9872f5fe870151
ripemd-160
85d7eef241bdcbadf7c15b792ce95397cb6e7c76
Diameter
1363132336
Circumference
4282406532.6483
Area
1.4593717051376E+18
Volume
1.3262111743444E+27
Surface area
5.8374868205505E+18
Circumference
4282406532.6483
Perimeter
2726264672
Area
464532441362204224
Diagonal
963880118.44026
Surface area
2787194648173225344
Volume
3.1660959597092E+26
Space diagonal
1180507231.696
Perimeter
2044698504
Area
2.0114844755084E+17
Altitude
590253615.84801
Surface area
2.0114844755084E+17
Volume
3.7312798716629E+25
Height
321293372.81342