121381911 is an odd 9-digits composite number following 121381910
and preceding 121381912 . In scientific notation, it is written as 1.21381911 × 10^8.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 69361056 positive integers (up to 121381911) that are relatively prime to 121381911.
121381911 has 12 divisors, whose sum is 200376592
The reverse of 121381911 is 119183121
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 27
Digital Root 9
Name
one hundred twenty-one million three hundred eighty-one thousand nine hundred eleven
Scientific notation
1.21381911 × 10^8
Engineering notation
1.21381911 × 10^6
Prime Factorization
3 × 3 × 7 × 1926697
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
40460637
Product of the distinct prime numbers
The prime factorization of 121381911 is 3 × 3 × 7 × 1926697.
Since it has a total of 4 prime factors.
10 , 1 , 3 , 79 , 636 , 409 , 7561 , 9293 , 66039 , 10760 , 349250 , 520678 , 1290777 , 230206 , 59437161 , 81292449 , 317381083 , 900847744 , 1977563300 , 7878171437
n×2
242763822
n×3
364145733
n×4
485527644
n×5
606909555
n÷2
60690955.5
n÷3
40460637
n÷3
30345477.75
n÷5
24276382.2
n2
14733568318011921
n3
1.7883886782893E+24
n4
2.1707803538152E+32
n5
2.6349346770735E+40
2 √n
11017.345914511
3 √n
495.12857388563
4 √n
104.96354564567
5 √n
41.383840743804
1 , 3 , 7 , 9 , 21 , 63 , 1926697 , 5780091 , 13486879 , 17340273 , 40460637 , 121381911
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
-121381910
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 121381911 can be divided by 12 positive divisors.
The sum of these divisors (counting 121381911) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111001111000010010000010111
3
Ternary
22110101211200100
4
Quaternary
13033002100113
5
Quinary
222033210121
6
Senary
20013345143
8
Octal
717022027
10
Decimal
121381911
12
Duodecimal
347981b3
16
Hexadecimal
73c2417
20
Vigesimal
1hicefb
36
Base36
209mvr
md5
9d82ddb485b779186072a08fe0398b0f
sha1
8370b60019fed76c406fab7446ce6f9b285034ad
sha256
6d0ff22fee26210c352e0bb9c73b5d3c3fd734eb6517b7931cd941b05b02d32a
sha512
6a17a6e6be1c7ace377dd96e8fad02534fed00b630734374d3ea2fa0d908b2147e29b7056a519cdaa40ab32799cab7f79ce32ba147ca6ef7fea0a44e3401b30b
ripemd-160
a67695437cc13fe07b75d2ea722472218dc6132e
Diameter
242763822
Circumference
762665039.75258
Area
4.628686998903E+16
Volume
7.4911849779693E+24
Surface area
1.8514747995612E+17
Circumference
762665039.75258
Perimeter
485527644
Area
14733568318011921
Diagonal
171659944.76296
Surface area
88401409908071526
Volume
1.7883886782893E+24
Space diagonal
210239636.9718
Perimeter
364145733
Area
6.3798222258959E+15
Altitude
105119818.4859
Surface area
6.3798222258959E+15
Volume
2.1076362696927E+23
Height
57219981.587655