121511221 is an odd 9-digits composite number following 121511220
and preceding 121511222 . In scientific notation, it is written as 1.21511221 × 10^8.
The sum of its digits is 16. It has a total of 4 prime factors and 16 positive divisors.
There are 110168064 positive integers (up to 121511221) that are relatively prime to 121511221.
121511221 has 16 divisors, whose sum is 133210224
The reverse of 121511221 is 122115121
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 16
Digital Root 7
Name
one hundred twenty-one million five hundred eleven thousand two hundred twenty-one
Scientific notation
1.21511221 × 10^8
Engineering notation
1.21511221 × 10^6
Prime Factorization
13 × 557 × 97 × 173
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
121511221
Product of the distinct prime numbers
The prime factorization of 121511221 is 13 × 557 × 97 × 173.
Since it has a total of 4 prime factors.
6 , 1 , 4 , 79 , 971 , 539 , 2583 , 3280 , 65756 , 76182 , 134104 , 523073 , 6453696 , 6196319 , 15778600 , 88333686 , 732859963 , 599865240 , 3835290481 , 7241999634
n×2
243022442
n×3
364533663
n×4
486044884
n×5
607556105
n÷2
60755610.5
n÷3
40503740.333333
n÷3
30377805.25
n÷5
24302244.2
n2
14764976828910841
n3
1.7941103625177E+24
n4
2.1800454075827E+32
n5
2.6489997931082E+40
2 √n
11023.212825669
3 √n
495.30433415935
4 √n
104.99148930113
5 √n
41.392654356164
1 , 13 , 97 , 173 , 557 , 1261 , 2249 , 7241 , 16781 , 54029 , 96361 , 218153 , 702377 , 1252693 , 9347017 , 121511221
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121511220
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121511221 can be divided by 16 positive divisors.
The sum of these divisors (counting 121511221) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111001111100001110100110101
3
Ternary
22110122102001121
4
Quaternary
13033201310311
5
Quinary
222101324341
6
Senary
20020223541
8
Octal
717416465
10
Decimal
121511221
12
Duodecimal
3483abb1
16
Hexadecimal
73e1d35
20
Vigesimal
1hj8i11
36
Base36
20cenp
md5
c719466791132235bafa42b965c29e01
sha1
fae42a60bc3ffafbbe06489c82792f483ccb460b
sha256
03f96b1468186971d4d9eaab9e9ca578a76ad2bd3b5fb54154607ed866566715
sha512
842aaa69f049edfc225d70f9d32ade4b5911ca292dde8c3b5e9ca01dfc451fdcdeb8cc9f63879bd62ae8fba3726f4b85c1dd607834f600155920fbb4ce2baecf
ripemd-160
a254f38a4abe3e03dcb121b372e457cc3d265e9c
Diameter
243022442
Circumference
763477518.44465
Area
4.638554273613E+16
Volume
7.5151519128198E+24
Surface area
1.8554217094452E+17
Circumference
763477518.44465
Perimeter
486044884
Area
14764976828910841
Diagonal
171842816.71871
Surface area
88589860973465046
Volume
1.7941103625177E+24
Space diagonal
210463608.46173
Perimeter
364533663
Area
6.3934225100627E+15
Altitude
105231804.23087
Surface area
6.3934225100627E+15
Volume
2.1143793392222E+23
Height
57280938.906238