121818105 is an odd 9-digits composite number following 121818104
and preceding 121818106 . In scientific notation, it is written as 1.21818105 × 10^8.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 64884480 positive integers (up to 121818105) that are relatively prime to 121818105.
121818105 has 24 divisors, whose sum is 211428360
The reverse of 121818105 is 501818121
Previous prime number is 1109
Is Prime? no Number parity odd Number length 9 Sum of Digits 27 Digital Root 9
Name
one hundred twenty-one million eight hundred eighteen thousand one hundred five
Scientific notation
1.21818105 × 10^8
Engineering notation
1.21818105 × 10^6
Prime Factorization
5 × 3 × 3 × 1109 × 2441
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
40606035 Product of the distinct prime numbers
The prime factorization of 121818105 is 5 × 3 × 3 × 1109 × 2441.
Since it has a total of 5 prime factors.
9 , 10 , 76 , 92 , 653 , 513 , 9074 , 3020 , 89227 , 28243 , 5881 , 551864 , 8329430 , 2149750 , 97018103 , 83470680 , 516059945 , 774008443 , 6926692440 , 9595486993
n×2
243636210
n×3
365454315
n×4
487272420
n×5
609090525
n÷2
60909052.5
n÷3
40606035
n÷3
30454526.25
n÷5
24363621
n2
14839650705791025
n3
1.8077381278414E+24
n4
2.2021523306988E+32
n5
2.6826202384707E+40
2 √n11037.123946029
3 √n495.72095738886
4 √n105.0577172131
5 √n41.413541201058
1 , 3 , 5 , 9 , 15 , 45 , 1109 , 2441 , 3327 , 5545 , 7323 , 9981 , 12205 , 16635 , 21969 , 36615 , 49905 , 109845 , 2707069 , 8121207 , 13535345 , 24363621 , 40606035 , 121818105
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-121818104 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121818105 can be divided by 24 positive divisors.
The sum of these divisors (counting 121818105) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111010000101100101111111001
3
Ternary
22111020000000200
4
Quaternary
13100230233321
5
Quinary
222141134410
6
Senary
20030552413
8
Octal
720545771
10
Decimal
121818105
12
Duodecimal
34968709
16
Hexadecimal
742cbf9
20
Vigesimal
1i17555
36
Base36
20izg9
md5
f9de3e47880e3f288b8062a679047801
sha1
e55ea422e4112d8bf25c846b868148762b4a661e
sha256
0e44afdb7da4b0bf93d7e9fb8ada3d3283085e975aabfe3c8118a479aab007a3
sha512
303a62c044b4a3e4509e8a0e35e1b34ad73f881dc3f1a5f937abbc99c14e7d2def69131e43592454e469cbea2a75c8b8333f2e40342a0e52be5d569097413c5c
ripemd-160
0d0e736399d13aff20935a9c64040d4c197e2730
Diameter
243636210
Circumference
765405727.48446
Area
4.6620137639152E+16
Volume
7.5722357627208E+24
Surface area
1.8648055055661E+17
Circumference
765405727.48446
Perimeter
487272420
Area
14839650705791025
Diagonal
172276816.23359
Surface area
89037904234746150
Volume
1.8077381278414E+24
Space diagonal
210995147.14176
Perimeter
365454315
Area
6.4257572472514E+15
Altitude
105497573.57088
Surface area
6.4257572472514E+15
Volume
2.1304398146769E+23
Height
57425605.411197