68561908 is an even 8-digits composite number following 68561907
and preceding 68561909 . In scientific notation, it is written as 6.8561908 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors.
There are 33551480 positive integers (up to 68561908) that are relatively prime to 68561908.
68561908 has 12 divisors, whose sum is 122536512
The reverse of 68561908 is 80916586
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
sixty-eight million five hundred sixty-one thousand nine hundred eight
Scientific notation
6.8561908 × 10^7
Engineering notation
6.8561908 × 10^6
Prime Factorization
2 × 2 × 47 × 364691
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
34280954
Product of the distinct prime numbers
The prime factorization of 68561908 is 2 × 2 × 47 × 364691.
Since it has a total of 4 prime factors.
6 , 9 , 67 , 84 , 387 , 574 , 9342 , 3138 , 32173 , 18079 , 701253 , 169988 , 4794775 , 5373726 , 20990119 , 63047651 , 441068666 , 982203278 , 3989442234 , 4908771201
n×2
137123816
n×3
205685724
n×4
274247632
n×5
342809540
n÷2
34280954
n÷3
22853969.333333
n÷3
17140477
n÷5
13712381.6
n2
4700735228600464
n3
3.2229137627566E+23
n4
2.2096911689405E+31
n5
1.5150064263331E+39
2 √n
8280.2118330391
3 √n
409.28669946821
4 √n
90.995669309254
5 √n
36.916165048026
1 , 2 , 4 , 47 , 94 , 188 , 364691 , 729382 , 1458764 , 17140477 , 34280954 , 68561908
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68561907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68561908 can be divided by 12 positive divisors.
The sum of these divisors (counting 68561908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100000101100010101111110100
3
Ternary
11210000022020221
4
Quaternary
10011202233310
5
Quinary
120022440113
6
Senary
10445304124
8
Octal
405425764
10
Decimal
68561908
12
Duodecimal
1ab65044
16
Hexadecimal
4162bf4
20
Vigesimal
118a4f8
36
Base36
14tipg
md5
b7978cb0c66b0dccc8b9ce3d786dbd83
sha1
b2997326e0d89a7fca6b6d7939de73a05c8c97c6
sha256
75d0c399011fefb8c81ae38d1e41a28117057cc48966e4e1714be5feca17e7e3
sha512
f90d4bc0422d704ce1fe47a92af7dbdb691142c6f5d215656380ef466664ea307ee05fc4285ca282a9a3b14ed9a7b77b5cf19097750af8710a9f88d3771f705b
ripemd-160
743f4c13c92950e0fe3b455c2432a174b471e01d
Diameter
137123816
Circumference
430787172.9778
Area
1.4767795260642E+16
Volume
1.3500109600306E+24
Surface area
5.9071181042568E+16
Circumference
430787172.9778
Perimeter
274247632
Area
4700735228600464
Diagonal
96961180.155776
Surface area
28204411371602784
Volume
3.2229137627566E+23
Space diagonal
118752708.11986
Perimeter
205685724
Area
2.0354780622162E+15
Altitude
59376354.059932
Surface area
2.0354780622162E+15
Volume
3.7982402947078E+22
Height
32320393.385259