121643906 is an even 9-digits composite number following 121643905
and preceding 121643907 . In scientific notation, it is written as 1.21643906 × 10^8.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 60821952 positive integers (up to 121643906) that are relatively prime to 121643906.
121643906 has 4 divisors, whose sum is 182465862
The reverse of 121643906 is 609346121
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 32
Digital Root 5
Name
one hundred twenty-one million six hundred forty-three thousand nine hundred six
Scientific notation
1.21643906 × 10^8
Engineering notation
1.21643906 × 10^6
Prime Factorization
2 × 60821953
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
121643906
Product of the distinct prime numbers
The prime factorization of 121643906 is 2 × 60821953.
Since it has a total of 2 prime factors.
1 , 4 , 54 , 89 , 129 , 601 , 4368 , 5678 , 9173 , 87819 , 76669 , 880433 , 3669439 , 451780 , 67986404 , 90081000 , 994892156 , 633244097 , 3031091687 , 1373084976
n×2
243287812
n×3
364931718
n×4
486575624
n×5
608219530
n÷2
60821953
n÷3
40547968.666667
n÷3
30410976.5
n÷5
24328781.2
n2
14797239866936836
n3
1.7999940554331E+24
n4
2.1895830767966E+32
n5
2.6634943797304E+40
2 √n
11029.229619516
3 √n
495.48455221823
4 √n
105.02013911396
5 √n
41.401690208125
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121643905
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121643906 can be divided by 4 positive divisors.
The sum of these divisors (counting 121643906) is 1, the average is 0.25.
Base
System
Value
2
Binary
111010000000010001110000010
3
Ternary
22110220011001212
4
Quaternary
13100002032002
5
Quinary
222120101111
6
Senary
20023130122
8
Octal
720021602
10
Decimal
121643906
12
Duodecimal
348a3942
16
Hexadecimal
7402382
20
Vigesimal
1i059f6
36
Base36
20f91e
md5
b3b7626c2cb6c3f469b99fa8de6deaab
sha1
57b787bea5e17bcd548e14ec0e8e806c082f6c75
sha256
31a84a12d9bfbcf24c298d29313108828a98972ea08065acd1d6e901e12cb993
sha512
9c44ded0ea848154b3c2e2cc87c7a98d5f8d07407c91ad32c50b8e5b39e40b0b350d1144b7e144e0bc8468aa3e40618fe69db4c89aa9b0b006311eada76333b2
ripemd-160
7476002e87b95dea0bdd68bf2c5c0c196cee6c60
Diameter
243287812
Circumference
764311202.88713
Area
4.6486900059375E+16
Volume
7.539797468072E+24
Surface area
1.859476002375E+17
Circumference
764311202.88713
Perimeter
486575624
Area
14797239866936836
Diagonal
172030461.64524
Surface area
88783439201621016
Volume
1.7999940554331E+24
Space diagonal
210693425.62313
Perimeter
364931718
Area
6.4073928153296E+15
Altitude
105346712.81157
Surface area
6.4073928153296E+15
Volume
2.1213133378204E+23
Height
57343487.215079