121787130 is an even 9-digits composite number following 121787129
and preceding 121787131 . In scientific notation, it is written as 1.21787130 × 10^8.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 32476560 positive integers (up to 121787130) that are relatively prime to 121787130.
121787130 has 16 divisors, whose sum is 292289184
The reverse of 121787130 is 031787121
Previous prime number is 5
Is Prime? no
Number parity even
Number length 9
Sum of Digits 30
Digital Root 3
Name
one hundred twenty-one million seven hundred eighty-seven thousand one hundred thirty
Scientific notation
1.21787130 × 10^8
Engineering notation
1.21787130 × 10^6
Prime Factorization
2 × 3 × 5 × 4059571
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
121787130
Product of the distinct prime numbers
The prime factorization of 121787130 is 2 × 3 × 5 × 4059571.
Since it has a total of 4 prime factors.
10 , 8 , 23 , 47 , 653 , 793 , 3353 , 2474 , 19961 , 49635 , 905637 , 577848 , 6057263 , 6489768 , 51069612 , 28349780 , 722310990 , 524140972 , 9572450701 , 9217111045
n×2
243574260
n×3
365361390
n×4
487148520
n×5
608935650
n÷2
60893565
n÷3
40595710
n÷3
30446782.5
n÷5
24357426
n2
14832105033636900
n3
1.8063595039052E+24
n4
2.1999133972884E+32
n5
2.679211389043E+40
2 √n
11035.720638001
3 √n
495.67893775014
4 √n
105.05103825285
5 √n
41.411434921488
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 4059571 , 8119142 , 12178713 , 20297855 , 24357426 , 40595710 , 60893565 , 121787130
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
-121787129
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 121787130 can be divided by 16 positive divisors.
The sum of these divisors (counting 121787130) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111010000100101001011111010
3
Ternary
22111011102112110
4
Quaternary
13100211023322
5
Quinary
222134142010
6
Senary
20030153150
8
Octal
720451372
10
Decimal
121787130
12
Duodecimal
349527b6
16
Hexadecimal
74252fa
20
Vigesimal
1i137ga
36
Base36
20ibju
md5
6ada02b7f7d8f3c4fceb836d5750e9d5
sha1
41e400d77498a6655006fa58341bdf76eec14b6a
sha256
f03c8cb12e26a5a252c5f9c9d1b75dcf4897b90a6c21d2bf874383772e6158ee
sha512
c45fafef4bace903c9a79c791d88f804fd91ec8d3c57a1d31ad87acdb665482c5d565f5189c6a8b25dc2534eeb43efa54168b15e56c451ba435898b3014d4581
ripemd-160
1b10fc4a37fc92ea69218871ca16fc93b5118374
Diameter
243574260
Circumference
765211105.81957
Area
4.6596432210946E+16
Volume
7.5664609962809E+24
Surface area
1.8638572884378E+17
Circumference
765211105.81957
Perimeter
487148520
Area
14832105033636900
Diagonal
172233010.9685
Surface area
88992630201821400
Volume
1.8063595039052E+24
Space diagonal
210941496.868
Perimeter
365361390
Area
6.4224898753643E+15
Altitude
105470748.434
Surface area
6.4224898753643E+15
Volume
2.1288150907869E+23
Height
57411003.656165