68686989 is an odd 8-digits composite number following 68686988
and preceding 68686990 . In scientific notation, it is written as 6.8686989 × 10^7.
The sum of its digits is 60. It has a total of 3 prime factors and 8 positive divisors.
There are 38965680 positive integers (up to 68686989) that are relatively prime to 68686989.
68686989 has 8 divisors, whose sum is 78691008
The reverse of 68686989 is 98968686
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 60
Digital Root 6
Name
sixty-eight million six hundred eighty-six thousand nine hundred eighty-nine
Scientific notation
6.8686989 × 10^7
Engineering notation
6.8686989 × 10^6
Prime Factorization
417 × 7 × 23531
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68686989
Product of the distinct prime numbers
The prime factorization of 68686989 is 417 × 7 × 23531.
Since it has a total of 3 prime factors.
1 , 6 , 13 , 80 , 354 , 642 , 1055 , 8023 , 91413 , 36294 , 853634 , 862942 , 1578562 , 6687755 , 22460322 , 66612182 , 174735005 , 416190731 , 7866489804 , 4395641279
n×2
137373978
n×3
206060967
n×4
274747956
n×5
343434945
n÷2
34343494.5
n÷3
22895663
n÷3
17171747.25
n÷5
13737397.8
n2
4717902457886121
n3
3.240585142279E+23
n4
2.2258603602128E+31
n5
1.5288764607747E+39
2 √n
8287.7613985925
3 √n
409.53544249343
4 √n
91.0371429615
5 √n
36.929624839546
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
-68686988
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 68686989 can be divided by 8 positive divisors.
The sum of these divisors (counting 68686989) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000110000001010010001101
3
Ternary
11210020122211120
4
Quaternary
10012001102031
5
Quinary
120040440424
6
Senary
10452111153
8
Octal
406012215
10
Decimal
68686989
12
Duodecimal
1b0054b9
16
Hexadecimal
418148d
20
Vigesimal
1195h99
36
Base36
14w77x
md5
4c58e4dab8fd60bf05a780cc966c8085
sha1
5a2a9833baf50391042e0f18fa4c49cb907d261f
sha256
90edf659b8050f7093c722f5736256a35d30bfd47741e1fb685e62847454853b
sha512
5ff733e1c95f75d74e651e8df588e020073d46846df123c5358b1e09c6b7cbbccd0bcdaef8bac0b10ccce32f502215411ac5a7e8f16dd92c5238d44f0e0d944d
ripemd-160
a691b06eb2ef72b6cb61aaf67f013b265e0b4a8b
Diameter
137373978
Circumference
431573080.07921
Area
1.4821727702048E+16
Volume
1.3574131301754E+24
Surface area
5.9286910808193E+16
Circumference
431573080.07921
Perimeter
274747956
Area
4717902457886121
Diagonal
97138071.402372
Surface area
28307414747316726
Volume
3.240585142279E+23
Space diagonal
118969354.76692
Perimeter
206060967
Area
2.0429116905532E+15
Altitude
59484677.383462
Surface area
2.0429116905532E+15
Volume
3.8190662151964E+22
Height
32379357.134124