68656989 is an odd 8-digits composite number following 68656988
and preceding 68656990 . In scientific notation, it is written as 6.8656989 × 10^7.
The sum of its digits is 57. It has a total of 2 prime factors and 4 positive divisors.
There are 44797376 positive integers (up to 68656989) that are relatively prime to 68656989.
68656989 has 4 divisors, whose sum is 69144060
The reverse of 68656989 is 98965686
Previous prime number is 141
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
sixty-eight million six hundred fifty-six thousand nine hundred eighty-nine
Scientific notation
6.8656989 × 10^7
Engineering notation
6.8656989 × 10^6
Prime Factorization
141 × 486929
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68656989
Product of the distinct prime numbers
The prime factorization of 68656989 is 141 × 486929.
Since it has a total of 2 prime factors.
8 , 2 , 59 , 29 , 934 , 842 , 1967 , 1682 , 76681 , 86633 , 813450 , 294874 , 9885715 , 6342813 , 47134552 , 32438425 , 199286297 , 601500538 , 7445994975 , 9562807757
n×2
137313978
n×3
205970967
n×4
274627956
n×5
343284945
n÷2
34328494.5
n÷3
22885663
n÷3
17164247.25
n÷5
13731397.8
n2
4713782138546121
n3
3.2363408843456E+23
n4
2.2219742049676E+31
n5
1.5255405854875E+39
2 √n
8285.9513032602
3 √n
409.47581037294
4 √n
91.027200897645
5 √n
36.926398370119
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
-68656988
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 68656989 can be divided by 4 positive divisors.
The sum of these divisors (counting 68656989) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000101111001111101011101
3
Ternary
11210012010200110
4
Quaternary
10011321331131
5
Quinary
120034010424
6
Senary
10451320233
8
Octal
405717535
10
Decimal
68656989
12
Duodecimal
1abb0079
16
Hexadecimal
4179f5d
20
Vigesimal
1192299
36
Base36
14vk2l
md5
5ec45f895d87e1828f7d8ba4bed98c7b
sha1
28ce835e0e963fe6167dec0e8c67eff0c1b9a2be
sha256
2b451a0315c69e89b7ee045aff7a45c20838b621f343865618d8a4b663eea215
sha512
93911b700c18762ba76aabc74367cbef4fd4f5f7761ae5a97d3531ff1c6514bd73f194cf44aa19936dce82feaebf4794bf84d19a881e064781bb29b10f9c53b7
ripemd-160
fc96172963fc74896d63a13d8f8b914f5c9ee123
Diameter
137313978
Circumference
431384584.51999
Area
1.4808783337079E+16
Volume
1.3556352995696E+24
Surface area
5.9235133348317E+16
Circumference
431384584.51999
Perimeter
274627956
Area
4713782138546121
Diagonal
97095644.9955
Surface area
28282692831276726
Volume
3.2363408843456E+23
Space diagonal
118917393.2427
Perimeter
205970967
Area
2.0411275399431E+15
Altitude
59458696.621349
Surface area
2.0411275399431E+15
Volume
3.8140643092534E+22
Height
32365214.9985