129777921 is an odd 9-digits composite number following 129777920
and preceding 129777922 . In scientific notation, it is written as 1.29777921 × 10^8.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 68451264 positive integers (up to 129777921) that are relatively prime to 129777921.
129777921 has 16 divisors, whose sum is 166615680
The reverse of 129777921 is 129777921
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 45
Digital Root 9
Name
one hundred twenty-nine million seven hundred seventy-seven thousand nine hundred twenty-one
Scientific notation
1.29777921 × 10^8
Engineering notation
1.29777921 × 10^6
Prime Factorization
9 × 91 × 7 × 22637
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
129777921
Product of the distinct prime numbers
The prime factorization of 129777921 is 9 × 91 × 7 × 22637.
Since it has a total of 4 prime factors.
6 , 6 , 18 , 54 , 571 , 998 , 3658 , 4497 , 34915 , 89982 , 336645 , 432473 , 627420 , 2503879 , 82800181 , 97168360 , 597172836 , 55129766 , 1831422096 , 5055272140
n×2
259555842
n×3
389333763
n×4
519111684
n×5
648889605
n÷2
64888960.5
n÷3
43259307
n÷3
32444480.25
n÷5
25955584.2
n2
16842308779082241
n3
2.1857598181893E+24
n4
2.8366336500995E+32
n5
3.6813241774856E+40
2 √n
11392.01127984
3 √n
506.2910741251
4 √n
106.73336535423
5 √n
41.94113340391
1 , 7 , 9 , 63 , 91 , 637 , 819 , 5733 , 22637 , 158459 , 203733 , 1426131 , 2059967 , 14419769 , 18539703 , 129777921
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
-129777920
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 129777921 can be divided by 16 positive divisors.
The sum of these divisors (counting 129777921) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101111000100000100000001
3
Ternary
100001012101211200
4
Quaternary
13233010010001
5
Quinary
231210343141
6
Senary
20513331413
8
Octal
757040401
10
Decimal
129777921
12
Duodecimal
37566b69
16
Hexadecimal
7bc4101
20
Vigesimal
20b24g1
36
Base36
259la9
md5
6c579a783213e1e8f58eb5dd3d9aceeb
sha1
9b3123ba88663a907f5d21849af643bb278333d5
sha256
45a8aa96476fb51c6ae0dc79f35e87bd108bc17ce08fe25b4a8475e933434d13
sha512
e34c499985aa912ac064f0664910f3e2b2f9dfdec75ed4389f4ea6c5c8c8479aec3777ba2978f508d6321fe991039879a1e85f6a6e09ec9e6f2acaf20f32667a
ripemd-160
ef16df31d8caea06ae5c7c2eb90c0b729d997fa5
Diameter
259555842
Circumference
815418726.42351
Area
5.2911673529856E+16
Volume
9.1556893164472E+24
Surface area
2.1164669411942E+17
Circumference
815418726.42351
Perimeter
519111684
Area
16842308779082241
Diagonal
183533695.97478
Surface area
101053852674493446
Volume
2.1857598181893E+24
Space diagonal
224781952.87266
Perimeter
389333763
Area
7.2929336305334E+15
Altitude
112390976.43633
Surface area
7.2929336305334E+15
Volume
2.5759426491446E+23
Height
61177898.658261