129121388 is an even 9-digits composite number following 129121387
and preceding 129121389 . In scientific notation, it is written as 1.29121388 × 10^8.
The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors.
There are 58691520 positive integers (up to 129121388) that are relatively prime to 129121388.
129121388 has 12 divisors, whose sum is 246504552
The reverse of 129121388 is 883121921
Previous prime number is 11
Is Prime? no Number parity even Number length 9 Sum of Digits 35 Digital Root 8
Name
one hundred twenty-nine million one hundred twenty-one thousand three hundred eighty-eight
Scientific notation
1.29121388 × 10^8
Engineering notation
1.29121388 × 10^6
Prime Factorization
2 × 2 × 11 × 2934577
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
64560694 Product of the distinct prime numbers
The prime factorization of 129121388 is 2 × 2 × 11 × 2934577.
Since it has a total of 4 prime factors.
6 , 9 , 100 , 57 , 800 , 774 , 6213 , 7994 , 14722 , 81216 , 665054 , 791734 , 2879554 , 8729129 , 6827534 , 26485843 , 469799031 , 158272850 , 2432860724 , 1067839879
n×2
258242776
n×3
387364164
n×4
516485552
n×5
645606940
n÷2
64560694
n÷3
43040462.666667
n÷3
32280347
n÷5
25824277.6
n2
16672332839046544
n3
2.1527547573757E+24
n4
2.7796668229595E+32
n5
3.5891443835808E+40
2 √n11363.159243802
3 √n505.43587241809
4 √n106.59812026392
5 √n41.898612106251
1 , 2 , 4 , 11 , 22 , 44 , 2934577 , 5869154 , 11738308 , 32280347 , 64560694 , 129121388
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-129121387 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129121388 can be divided by 12 positive divisors.
The sum of these divisors (counting 129121388) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111101100100011110001101100
3
Ternary
22222222001020122
4
Quaternary
13230203301230
5
Quinary
231023341023
6
Senary
20451304112
8
Octal
754436154
10
Decimal
129121388
12
Duodecimal
372ab038
16
Hexadecimal
7b23c6c
20
Vigesimal
2070398
36
Base36
24vip8
md5
7513e7fa6dcb920cf0fca59e3d3f1884
sha1
6ec50ae25f988b2864e05e3b700882fce3556bd1
sha256
10adc8122178198d87ceed3ee5131034803639ec47e1b2e85c7149adea71ac40
sha512
e3d5b0676910d201c322a757f5015098433b2a2ce65db8a22fbdd475349adfbc760cb4b18aa4d0a5b91b5fce251d455c94c3d5f9300fd02eb3a35686bde11e4a
ripemd-160
0a02286fd02c1db5ee89c8bc26d6a0d7d7729e34
Diameter
258242776
Circumference
811293607.92423
Area
5.2377678365352E+16
Volume
9.0174380410025E+24
Surface area
2.0951071346141E+17
Circumference
811293607.92423
Perimeter
516485552
Area
16672332839046544
Diagonal
182605218.10204
Surface area
100033997034279264
Volume
2.1527547573757E+24
Space diagonal
223644804.35981
Perimeter
387364164
Area
7.2193318894819E+15
Altitude
111822402.17991
Surface area
7.2193318894819E+15
Volume
2.5370458119532E+23
Height
60868406.034013