129021521 is an odd 9-digits composite number following 129021520
and preceding 129021522 . In scientific notation, it is written as 1.29021521 × 10^8.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 128481444 positive integers (up to 129021521) that are relatively prime to 129021521.
129021521 has 4 divisors, whose sum is 129561600
The reverse of 129021521 is 125120921
Previous prime number is 239
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 23
Digital Root 5
Name
one hundred twenty-nine million twenty-one thousand five hundred twenty-one
Scientific notation
1.29021521 × 10^8
Engineering notation
1.29021521 × 10^6
Prime Factorization
239 × 539839
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129021521
Product of the distinct prime numbers
The prime factorization of 129021521 is 239 × 539839.
Since it has a total of 2 prime factors.
5 , 8 , 39 , 6 , 353 , 141 , 7203 , 1256 , 22949 , 73906 , 196024 , 452835 , 8241775 , 3997695 , 4702440 , 80968877 , 582065166 , 772724009 , 9430398914 , 1440137405
n×2
258043042
n×3
387064563
n×4
516086084
n×5
645107605
n÷2
64510760.5
n÷3
43007173.666667
n÷3
32255380.25
n÷5
25804304.2
n2
16646552881153441
n3
2.1477635721333E+24
n4
2.7710772282504E+32
n5
3.5752859879733E+40
2 √n
11358.764061288
3 √n
505.30553154521
4 √n
106.57750260392
5 √n
41.892128929651
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
-129021520
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 129021521 can be divided by 4 positive divisors.
The sum of these divisors (counting 129021521) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101100001011011001010001
3
Ternary
22222202222020212
4
Quaternary
13230023121101
5
Quinary
231012142041
6
Senary
20445213505
8
Octal
754133121
10
Decimal
129021521
12
Duodecimal
37261295
16
Hexadecimal
7b0b651
20
Vigesimal
2067dg1
36
Base36
24tdn5
md5
3f255e9dd5ce59806e180a85f0b1f31e
sha1
8b78367fd527d3e9eba7a46f77aa2cf54d425ebf
sha256
5a09ada3f3c422ea3846661cdae6fc294049f7324ea379f8c40be6440712f94c
sha512
108ed6cc0b24a23fd481fded62350d87c819f671cae0b400a2bb08ff778af7836f88a8010a6f731f7939423400f4e9c8ada6d49d07e1e1cbf75e94d980ead1be
ripemd-160
b0e9a9c42d44e5c99a659fc31e12b4ec4ac9069a
Diameter
258043042
Circumference
810666125.05716
Area
5.2296688239026E+16
Volume
8.9965310131492E+24
Surface area
2.091867529561E+17
Circumference
810666125.05716
Perimeter
516086084
Area
16646552881153441
Diagonal
182463984.83621
Surface area
99879317286920646
Volume
2.1477635721333E+24
Space diagonal
223471829.64181
Perimeter
387064563
Area
7.20816884026E+15
Altitude
111735914.82091
Surface area
7.20816884026E+15
Volume
2.5311636437349E+23
Height
60821328.278735