121388449 is an odd 9-digits composite number following 121388448
and preceding 121388450 . In scientific notation, it is written as 1.21388449 × 10^8.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 90392832 positive integers (up to 121388449) that are relatively prime to 121388449.
121388449 has 16 divisors, whose sum is 158191488
The reverse of 121388449 is 944883121
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 40
Digital Root 4
Name
one hundred twenty-one million three hundred eighty-eight thousand four hundred forty-nine
Scientific notation
1.21388449 × 10^8
Engineering notation
1.21388449 × 10^6
Prime Factorization
13 × 7 × 17 × 78467
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
121388449
Product of the distinct prime numbers
The prime factorization of 121388449 is 13 × 7 × 17 × 78467.
Since it has a total of 4 prime factors.
5 , 7 , 9 , 80 , 372 , 860 , 8264 , 8108 , 71486 , 56890 , 362642 , 87582 , 192252 , 8893735 , 22168427 , 27673221 , 643245549 , 707182034 , 4168084021 , 900267108
n×2
242776898
n×3
364165347
n×4
485553796
n×5
606942245
n÷2
60694224.5
n÷3
40462816.333333
n÷3
30347112.25
n÷5
24277689.8
n2
14735155550625601
n3
1.7886776780642E+24
n4
2.1712480910113E+32
n5
2.6356443816208E+40
2 √n
11017.642624446
3 √n
495.13746343781
4 √n
104.96495903131
5 √n
41.38428654618
1 , 7 , 13 , 17 , 91 , 119 , 221 , 1547 , 78467 , 549269 , 1020071 , 1333939 , 7140497 , 9337573 , 17341207 , 121388449
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
-121388448
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 121388449 can be divided by 16 positive divisors.
The sum of these divisors (counting 121388449) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111001111000011110110100001
3
Ternary
22110102011122111
4
Quaternary
13033003312201
5
Quinary
222033412244
6
Senary
20013435321
8
Octal
717036641
10
Decimal
121388449
12
Duodecimal
3479bb41
16
Hexadecimal
73c3da1
20
Vigesimal
1hidb29
36
Base36
209rxd
md5
f9b13c09f07d217ca3ab638bbc0886d3
sha1
5f3d3aa2f997bdf66279cd2d142789bda6b92222
sha256
0cffef36f67e3b642b16c5654c01445d6845428180de5145e2173d41cee76c96
sha512
952439f82ea33db9d53e953e913fb57bd3955bc611a25059ea8e5abea7e1bf9d2aefb54f96fcd23d4e0a13a83aa6cc909a3000fc88648d9e8cc9fa57e9058a31
ripemd-160
e51edb0d1cff64390d7d275661adb660b4986b51
Diameter
242776898
Circumference
762706119.21812
Area
4.6291856427348E+16
Volume
7.4923955373953E+24
Surface area
1.8516742570939E+17
Circumference
762706119.21812
Perimeter
485553796
Area
14735155550625601
Diagonal
171669190.89123
Surface area
88410933303753606
Volume
1.7886776780642E+24
Space diagonal
210250961.11998
Perimeter
364165347
Area
6.3805095177785E+15
Altitude
105125480.55999
Surface area
6.3805095177785E+15
Volume
2.1079768591937E+23
Height
57223063.630412