121900305 is an odd 9-digits composite number following 121900304
and preceding 121900306 . In scientific notation, it is written as 1.21900305 × 10^8.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 64928448 positive integers (up to 121900305) that are relatively prime to 121900305.
121900305 has 8 divisors, whose sum is 130197120
The reverse of 121900305 is 503009121
Previous prime number is 9803
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 21
Digital Root 3
Name
one hundred twenty-one million nine hundred thousand three hundred five
Scientific notation
1.21900305 × 10^8
Engineering notation
1.21900305 × 10^6
Prime Factorization
15 × 9803 × 829
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
121900305
Product of the distinct prime numbers
The prime factorization of 121900305 is 15 × 9803 × 829.
Since it has a total of 3 prime factors.
7 , 1 , 39 , 98 , 773 , 516 , 9817 , 3482 , 4623 , 11223 , 992142 , 848933 , 2189839 , 5928039 , 92885542 , 52047300 , 268741678 , 646695789 , 3213988004 , 4265366128
n×2
243800610
n×3
365700915
n×4
487601220
n×5
609501525
n÷2
60950152.5
n÷3
40633435
n÷3
30475076.25
n÷5
24380061
n2
14859684359093025
n3
1.8114000555772E+24
n4
2.2081021925187E+32
n5
2.691683307392E+40
2 √n
11040.847114239
3 √n
495.83243261062
4 √n
105.07543535118
5 √n
41.419128670393
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121900304
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121900305 can be divided by 8 positive divisors.
The sum of these divisors (counting 121900305) is 1, the average is 0.125.
Base
System
Value
2
Binary
111010001000000110100010001
3
Ternary
22111101011210010
4
Quaternary
13101000310101
5
Quinary
222201302210
6
Senary
20032425133
8
Octal
721006421
10
Decimal
121900305
12
Duodecimal
349a81a9
16
Hexadecimal
7440d11
20
Vigesimal
1i1haf5
36
Base36
20kqvl
md5
b93530b891d357d643d4689d6d0f9a2d
sha1
28eef9360c7bebdca09ce06cb16c0e143e8185b9
sha256
0005a7ecdc9eddd5336a67f7b6b446595616587c6346e31b0176de9069355e09
sha512
d8953eae07c3978f8417dd7ebc7c8cb5e94e1f06bf45b05746e5a2f540e9fdc45a882eba6f79a17d96bb00b2161b26df9ab9d4b3400cb3aed1551d25a4f4fdb5
ripemd-160
d6aa19bf1040d54de2561f522d04bdafc6fde9dc
Diameter
243800610
Circumference
765922205.31671
Area
4.668307521719E+16
Volume
7.5875748097512E+24
Surface area
1.8673230086876E+17
Circumference
765922205.31671
Perimeter
487601220
Area
14859684359093025
Diagonal
172393064.58842
Surface area
89158106154558150
Volume
1.8114000555772E+24
Space diagonal
211137521.71814
Perimeter
365700915
Area
6.4344320735964E+15
Altitude
105568760.85907
Surface area
6.4344320735964E+15
Volume
2.1347554379005E+23
Height
57464354.862806