129123870 is an even 9-digits composite number following 129123869
and preceding 129123871 . In scientific notation, it is written as 1.29123870 × 10^8.
The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors.
There are 33701888 positive integers (up to 129123870) that are relatively prime to 129123870.
129123870 has 32 divisors, whose sum is 211040640
The reverse of 129123870 is 078321921
Previous prime number is 137
Is Prime? no
Number parity even
Number length 9
Sum of Digits 33
Digital Root 6
Name
one hundred twenty-nine million one hundred twenty-three thousand eight hundred seventy
Scientific notation
1.29123870 × 10^8
Engineering notation
1.29123870 × 10^6
Prime Factorization
2 × 15 × 89 × 137 × 353
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
129123870
Product of the distinct prime numbers
The prime factorization of 129123870 is 2 × 15 × 89 × 137 × 353.
Since it has a total of 5 prime factors.
2 , 2 , 74 , 29 , 693 , 334 , 7248 , 3526 , 58948 , 37728 , 903202 , 690333 , 3199 , 9650561 , 76688027 , 69146220 , 448509440 , 584145088 , 6430157953 , 5762503279
n×2
258247740
n×3
387371610
n×4
516495480
n×5
645619350
n÷2
64561935
n÷3
43041290
n÷3
32280967.5
n÷5
25824774
n2
16672973803776900
n3
2.1528789019523E+24
n4
2.7798805546143E+32
n5
3.5894893534955E+40
2 √n
11363.268455863
3 √n
505.43911093088
4 √n
106.59863252342
5 √n
41.898773181899
1 , 2 , 15 , 30 , 89 , 137 , 178 , 274 , 353 , 706 , 1335 , 2055 , 2670 , 4110 , 5295 , 10590 , 12193 , 24386 , 31417 , 48361 , 62834 , 96722 , 182895 , 365790 , 471255 , 725415 , 942510 , 1450830 , 4304129 , 8608258 , 64561935 , 129123870
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129123869
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129123870 can be divided by 32 positive divisors.
The sum of these divisors (counting 129123870) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101100100100011000011110
3
Ternary
22222222011122120
4
Quaternary
13230210120132
5
Quinary
231023430440
6
Senary
20451323410
8
Octal
754443036
10
Decimal
129123870
12
Duodecimal
372b0566
16
Hexadecimal
7b2461e
20
Vigesimal
20709da
36
Base36
24vkm6
md5
4730fefacd06f8e3fdda4e2264f8c438
sha1
51aa1145fdd0b491cc433cb9645fb1c933cf2736
sha256
09da53c9b86203e7c1fe0463f130ded33025b7eed894f60e622312f37dd64b53
sha512
8d9786fb0ae0af73e9b43e1287f9503acb24c4f76c19032f614163a777835b9e225ec8f9c1aeb98bc54cad6ec785c74ee92fc1dd3ce6c0a3fc69e9dd26dbf33f
ripemd-160
2236c06befe4b81a20e499a92181e697d9ad0e70
Diameter
258247740
Circumference
811309202.79017
Area
5.2379692015441E+16
Volume
9.017958056589E+24
Surface area
2.0951876806176E+17
Circumference
811309202.79017
Perimeter
516495480
Area
16672973803776900
Diagonal
182608728.1801
Surface area
100037842822661400
Volume
2.1528789019523E+24
Space diagonal
223649103.30992
Perimeter
387371610
Area
7.2196094353516E+15
Altitude
111824551.65496
Surface area
7.2196094353516E+15
Volume
2.5371921177399E+23
Height
60869576.060033