121998942 is an even 9-digits composite number following 121998941
and preceding 121998943 . In scientific notation, it is written as 1.21998942 × 10^8.
The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors.
There are 37538064 positive integers (up to 121998942) that are relatively prime to 121998942.
121998942 has 24 divisors, whose sum is 284664744
The reverse of 121998942 is 249899121
Previous prime number is 13
Is Prime? no
Number parity even
Number length 9
Sum of Digits 45
Digital Root 9
Name
one hundred twenty-one million nine hundred ninety-eight thousand nine hundred forty-two
Scientific notation
1.21998942 × 10^8
Engineering notation
1.21998942 × 10^6
Prime Factorization
2 × 3 × 3 × 13 × 521363
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
40666314
Product of the distinct prime numbers
The prime factorization of 121998942 is 2 × 3 × 3 × 13 × 521363.
Since it has a total of 5 prime factors.
2 , 9 , 24 , 1 , 35 , 298 , 6377 , 2477 , 69466 , 46870 , 761464 , 441804 , 5305043 , 8985380 , 28337957 , 86153148 , 764645670 , 989860066 , 1156037246 , 2169491689
n×2
243997884
n×3
365996826
n×4
487995768
n×5
609994710
n÷2
60999471
n÷3
40666314
n÷3
30499735.5
n÷5
24399788.4
n2
14883741849119364
n3
1.8158007585937E+24
n4
2.2152577143123E+32
n5
2.7025909740344E+40
2 √n
11045.313123674
3 √n
495.96613268149
4 √n
105.09668464644
5 √n
41.425829452509
1 , 2 , 3 , 6 , 9 , 13 , 18 , 26 , 39 , 78 , 117 , 234 , 521363 , 1042726 , 1564089 , 3128178 , 4692267 , 6777719 , 9384534 , 13555438 , 20333157 , 40666314 , 60999471 , 121998942
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
-121998941
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 121998942 can be divided by 24 positive divisors.
The sum of these divisors (counting 121998942) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111010001011000111001011110
3
Ternary
22111120012002100
4
Quaternary
13101120321132
5
Quinary
222212431232
6
Senary
20034505530
8
Octal
721307136
10
Decimal
121998942
12
Duodecimal
34a352a6
16
Hexadecimal
7458e5e
20
Vigesimal
1i29h72
36
Base36
20muzi
md5
3f100d192ed6daae9b3d4fea14c3004a
sha1
46af7f4ff6d208717e2e32cd7b078c16a6728113
sha256
cdd2adf78fab82370d058aa39bb4643dbca52c49291cdc373a2e3b0e268476a0
sha512
b4d824af4b2091d2d0d3efce567e896ab68a96bc25304669bcc64c5439b5866c95b8bbca0062f66f94168a161dd0cbcb6cb5582863d85eda340adb733e6e3cef
ripemd-160
bedfcf61276db022139cf76152388add20b5ec53
Diameter
243997884
Circumference
766541959.86585
Area
4.675865405112E+16
Volume
7.6060084314409E+24
Surface area
1.8703461620448E+17
Circumference
766541959.86585
Perimeter
487995768
Area
14883741849119364
Diagonal
172532558.37157
Surface area
89302451094716184
Volume
1.8158007585937E+24
Space diagonal
211308366.01365
Perimeter
365996826
Area
6.4448492723535E+15
Altitude
105654183.00682
Surface area
6.4448492723535E+15
Volume
2.1399417161421E+23
Height
57510852.790523