121500905 is an odd 9-digits composite number following 121500904
and preceding 121500906 . In scientific notation, it is written as 1.21500905 × 10^8.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 97200720 positive integers (up to 121500905) that are relatively prime to 121500905.
121500905 has 4 divisors, whose sum is 145801092
The reverse of 121500905 is 509005121
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 23
Digital Root 5
Name
one hundred twenty-one million five hundred thousand nine hundred five
Scientific notation
1.21500905 × 10^8
Engineering notation
1.21500905 × 10^6
Prime Factorization
5 × 24300181
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
121500905
Product of the distinct prime numbers
The prime factorization of 121500905 is 5 × 24300181.
Since it has a total of 2 prime factors.
9 , 8 , 11 , 66 , 389 , 74 , 5809 , 4228 , 13110 , 15716 , 246243 , 426530 , 8122197 , 1128500 , 4177566 , 58137862 , 129645009 , 146288472 , 2857330670 , 3478710563
n×2
243001810
n×3
364502715
n×4
486003620
n×5
607504525
n÷2
60750452.5
n÷3
40500301.666667
n÷3
30375226.25
n÷5
24300181
n2
14762469915819025
n3
1.7936534548073E+24
n4
2.1793051801546E+32
n5
2.6478755165997E+40
2 √n
11022.744894082
3 √n
495.29031706125
4 √n
104.9892608512
5 √n
41.391951505645
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
-121500904
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 121500905 can be divided by 4 positive divisors.
The sum of these divisors (counting 121500905) is 1, the average is 0.25.
Base
System
Value
2
Binary
111001111011111010011101001
3
Ternary
22110121212220112
4
Quaternary
13033133103221
5
Quinary
222101012110
6
Senary
20020104105
8
Octal
717372351
10
Decimal
121500905
12
Duodecimal
34835035
16
Hexadecimal
73df4e9
20
Vigesimal
1hj7c55
36
Base36
20c6p5
md5
e364a99b1507b05c5f5fcc77fb489727
sha1
eb67f7ac240ebe3295aa20fefd871dd64b3c1bf6
sha256
da895a594f8814ffb442daecf51aa019c594c88bc1fd496fa4a45815f46e629f
sha512
cd4dc0f50c734e3fb019d53d631d473dae7f54c3549835375f7cacb26977d6f1c1aed9055f59c51de28bff42ae82a99507d4ea2572ffc98b76c1c2ab339febe4
ripemd-160
994a1011e33befcb3cb12e560e9de83ed384cf94
Diameter
243001810
Circumference
763412701.10502
Area
4.6377667036377E+16
Volume
7.513238022278E+24
Surface area
1.8551066814551E+17
Circumference
763412701.10502
Perimeter
486003620
Area
14762469915819025
Diagonal
171828227.69161
Surface area
88574819494914150
Volume
1.7936534548073E+24
Space diagonal
210445740.6256
Perimeter
364502715
Area
6.3923369848514E+15
Altitude
105222870.3128
Surface area
6.3923369848514E+15
Volume
2.1138408683215E+23
Height
57276075.897202