129472021 is an odd 9-digits composite number following 129472020
and preceding 129472022 . In scientific notation, it is written as 1.29472021 × 10^8.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 110976012 positive integers (up to 129472021) that are relatively prime to 129472021.
129472021 has 4 divisors, whose sum is 147968032
The reverse of 129472021 is 120274921
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 28
Digital Root 1
Name
one hundred twenty-nine million four hundred seventy-two thousand twenty-one
Scientific notation
1.29472021 × 10^8
Engineering notation
1.29472021 × 10^6
Prime Factorization
7 × 18496003
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129472021
Product of the distinct prime numbers
The prime factorization of 129472021 is 7 × 18496003.
Since it has a total of 2 prime factors.
10 , 4 , 13 , 70 , 343 , 631 , 3178 , 2826 , 12750 , 77895 , 563496 , 667037 , 4243288 , 2140033 , 52855626 , 99602290 , 493033543 , 153142733 , 9805722344 , 6119274583
n×2
258944042
n×3
388416063
n×4
517888084
n×5
647360105
n÷2
64736010.5
n÷3
43157340.333333
n÷3
32368005.25
n÷5
25894404.2
n2
16763004221824441
n3
2.1703400346311E+24
n4
2.809983105409E+32
n5
3.6381419163316E+40
2 √n
11378.57728365
3 √n
505.89296767009
4 √n
106.67041428461
5 √n
41.92134281672
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129472020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129472021 can be divided by 4 positive divisors.
The sum of these divisors (counting 129472021) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101101111001011000010101
3
Ternary
100000121212020001
4
Quaternary
13231321120111
5
Quinary
231121101041
6
Senary
20503011301
8
Octal
755713025
10
Decimal
129472021
12
Duodecimal
37439b31
16
Hexadecimal
7b79615
20
Vigesimal
2094011
36
Base36
253191
md5
f8a1f28fa8c4a641d210c6a51947806d
sha1
2944103542568908c6b06306761137c05c84dbd4
sha256
4c6809e112565951ab276470c93ce1740144b9639a0308f8927be7c7ba88dbf2
sha512
ad3d9fe6005e99e7c5af6f24704e92af7e88565c7a372602d778391352ac5897494fcf093ad964414bf7bbf76e04a264242d430c0758a52351e62ba106727f2b
ripemd-160
7b76ede7353b8e48e47b005043ff8db8b8545a9f
Diameter
258944042
Circumference
813496700.03805
Area
5.2662530915378E+16
Volume
9.0910990781187E+24
Surface area
2.1065012366151E+17
Circumference
813496700.03805
Perimeter
517888084
Area
16763004221824441
Diagonal
183101088.04605
Surface area
100578025330946646
Volume
2.1703400346311E+24
Space diagonal
224252118.53062
Perimeter
388416063
Area
7.2585937499229E+15
Altitude
112126059.26531
Surface area
7.2585937499229E+15
Volume
2.5577702599472E+23
Height
61033696.015351