68091918 is an even 8-digits composite number following 68091917
and preceding 68091919 . In scientific notation, it is written as 6.8091918 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 22386240 positive integers (up to 68091918) that are relatively prime to 68091918.
68091918 has 16 divisors, whose sum is 138050256
The reverse of 68091918 is 81919086
Previous prime number is 73
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-eight million ninety-one thousand nine hundred eighteen
Scientific notation
6.8091918 × 10^7
Engineering notation
6.8091918 × 10^6
Prime Factorization
2 × 3 × 73 × 155461
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68091918
Product of the distinct prime numbers
The prime factorization of 68091918 is 2 × 3 × 73 × 155461.
Since it has a total of 4 prime factors.
10 , 9 , 93 , 100 , 108 , 307 , 8513 , 5878 , 16080 , 31800 , 416269 , 232696 , 3809280 , 1132139 , 24150101 , 34893563 , 578517760 , 430781447 , 7647297355 , 7485353340
n×2
136183836
n×3
204275754
n×4
272367672
n×5
340459590
n÷2
34045959
n÷3
22697306
n÷3
17022979.5
n÷5
13618383.6
n2
4636509296918724
n3
3.1570881085203E+23
n4
2.1497218460414E+31
n5
1.4637868366346E+39
2 √n
8251.7827164801
3 √n
408.34933796309
4 √n
90.839323624079
5 √n
36.86541383742
1 , 2 , 3 , 6 , 73 , 146 , 219 , 438 , 155461 , 310922 , 466383 , 932766 , 11348653 , 22697306 , 34045959 , 68091918
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
-68091917
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 68091918 can be divided by 16 positive divisors.
The sum of these divisors (counting 68091918) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000011110000000000001110
3
Ternary
11202010102112220
4
Quaternary
10003300000032
5
Quinary
114412420133
6
Senary
10431240210
8
Octal
403600016
10
Decimal
68091918
12
Duodecimal
1a979066
16
Hexadecimal
40f000e
20
Vigesimal
115b9fi
36
Base36
14jg26
md5
bfa1fb09f4aa752f681c6ed4011ef123
sha1
b72d409bcfc6f314dfe1034545341071638b38ba
sha256
e9bcfeb8177d17a78f8a0113513f649f44f1d313c820857e3af285ff2c13cf67
sha512
83d7601c05147b6d112598dc01ca247000197debfc497634b13e53fd3d4ac7601d1df27a3423cfc27bf4d74f50f967ff899eb783989b350fe408240393021ef5
ripemd-160
1e26545171d07ca52f7b547a7d805b7709c29d42
Diameter
136183836
Circumference
427834138.71528
Area
1.4566023545501E+16
Volume
1.3224379744617E+24
Surface area
5.8264094182003E+16
Circumference
427834138.71528
Perimeter
272367672
Area
4636509296918724
Diagonal
96296513.923597
Surface area
27819055781512344
Volume
3.1570881085203E+23
Space diagonal
117938661.56081
Perimeter
204275754
Area
2.0076674180072E+15
Altitude
58969330.780407
Surface area
2.0076674180072E+15
Volume
3.7206640172302E+22
Height
32098837.974532