68540979 is an odd 8-digits composite number following 68540978
and preceding 68540980 . In scientific notation, it is written as 6.8540979 × 10^7.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 42036000 positive integers (up to 68540979) that are relatively prime to 68540979.
68540979 has 16 divisors, whose sum is 98751744
The reverse of 68540979 is 97904586
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
sixty-eight million five hundred forty thousand nine hundred seventy-nine
Scientific notation
6.8540979 × 10^7
Engineering notation
6.8540979 × 10^6
Prime Factorization
3 × 13 × 311 × 5651
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68540979
Product of the distinct prime numbers
The prime factorization of 68540979 is 3 × 13 × 311 × 5651.
Since it has a total of 4 prime factors.
9 , 7 , 68 , 61 , 740 , 126 , 420 , 7794 , 31767 , 61684 , 726504 , 66578 , 3825176 , 7683303 , 31634735 , 156866 , 894335819 , 378730023 , 2402304161 , 7419382594
n×2
137081958
n×3
205622937
n×4
274163916
n×5
342704895
n÷2
34270489.5
n÷3
22846993
n÷3
17135244.75
n÷5
13708195.8
n2
4697865802278441
n3
3.2199632129878E+23
n4
2.2069943096217E+31
n5
1.512695506289E+39
2 √n
8278.9479404089
3 √n
409.24504935793
4 √n
90.988724248716
5 √n
36.913910989477
1 , 3 , 13 , 39 , 311 , 933 , 4043 , 5651 , 12129 , 16953 , 73463 , 220389 , 1757461 , 5272383 , 22846993 , 68540979
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
-68540978
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 68540979 can be divided by 16 positive divisors.
The sum of these divisors (counting 68540979) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000101011101101000110011
3
Ternary
11202222020112210
4
Quaternary
10011131220303
5
Quinary
120021302404
6
Senary
10445023203
8
Octal
405355063
10
Decimal
68540979
12
Duodecimal
1ab54b03
16
Hexadecimal
415da33
20
Vigesimal
1187c8j
36
Base36
14t2k3
md5
16713bcf81bb3ae6460cd76bd14703e8
sha1
cae77909b5267c40c921f3d0b2e524a357803235
sha256
adc4d629cbfc8d9b2ad8f028014d9eb5dc3ac572b0400fa598eb6e8e3c07db8b
sha512
16589815c55f56a55545ed78e0cb808e58caa64f7041fb467f8caf01faa03dd816822971d02d3312d1b07f3c4dba79c8a511974b33285650a07128cdea0d0cfa
ripemd-160
daf668fb9f1a992c2892a8463621d957fd3285f3
Diameter
137081958
Circumference
430655672.1925
Area
1.4758780691989E+16
Volume
1.3487750366336E+24
Surface area
5.9035122767955E+16
Circumference
430655672.1925
Perimeter
274163916
Area
4697865802278441
Diagonal
96931582.08013
Surface area
28187194813670646
Volume
3.2199632129878E+23
Space diagonal
118716458.02851
Perimeter
205622937
Area
2.0342355641716E+15
Altitude
59358229.014256
Surface area
2.0342355641716E+15
Volume
3.7947630384582E+22
Height
32310527.360043