68538081 is an odd 8-digits composite number following 68538080
and preceding 68538082 . In scientific notation, it is written as 6.8538081 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 45692052 positive integers (up to 68538081) that are relatively prime to 68538081.
68538081 has 4 divisors, whose sum is 91384112
The reverse of 68538081 is 18083586
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
sixty-eight million five hundred thirty-eight thousand eighty-one
Scientific notation
6.8538081 × 10^7
Engineering notation
6.8538081 × 10^6
Prime Factorization
3 × 22846027
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68538081
Product of the distinct prime numbers
The prime factorization of 68538081 is 3 × 22846027.
Since it has a total of 2 prime factors.
3 , 5 , 51 , 8 , 152 , 157 , 7661 , 6876 , 44887 , 89711 , 593757 , 587833 , 4543739 , 5677793 , 44594074 , 35724729 , 649225418 , 755152951 , 4644028034 , 3043148727
n×2
137076162
n×3
205614243
n×4
274152324
n×5
342690405
n÷2
34269040.5
n÷3
22846027
n÷3
17134520.25
n÷5
13707616.2
n2
4697468547162561
n3
3.2195547978038E+23
n4
2.2066210751582E+31
n5
1.512375739855E+39
2 √n
8278.7729163204
3 √n
409.23928147578
4 √n
90.987762453642
5 √n
36.913598830751
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68538080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68538081 can be divided by 4 positive divisors.
The sum of these divisors (counting 68538081) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000101011100111011100001
3
Ternary
11202222002120110
4
Quaternary
10011130323201
5
Quinary
120021204311
6
Senary
10445001533
8
Octal
405347341
10
Decimal
68538081
12
Duodecimal
1ab532a9
16
Hexadecimal
415cee1
20
Vigesimal
1187541
36
Base36
14t0bl
md5
f587a8e2435b9c6fea91ecf6f349151f
sha1
06cf2d34cf622c2c17694bc6b78b70ef78c34ab2
sha256
28a1e90113792a32402d2d25315357dcaf43a050ad1dc5fd811f0fa31b814afb
sha512
6c6036952ab9012bda51b4e0f7fdf1f64eebab9763b97cc509854e92aa5c5633dc4a7663190ddb67ff56e2e6c75233a1fef31134affd9ce0e5cf2d537b074485
ripemd-160
b293aeebc62067b923050090ef24ebf99379643f
Diameter
137076162
Circumference
430637463.52148
Area
1.4757532678235E+16
Volume
1.3486039600814E+24
Surface area
5.903013071294E+16
Circumference
430637463.52148
Perimeter
274152324
Area
4697468547162561
Diagonal
96927483.689226
Surface area
28184811282975366
Volume
3.2195547978038E+23
Space diagonal
118711438.54527
Perimeter
205614243
Area
2.0340635476606E+15
Altitude
59355719.272636
Surface area
2.0340635476606E+15
Volume
3.7942817165479E+22
Height
32309161.229742