129806821 is an odd 9-digits composite number following 129806820
and preceding 129806822 . In scientific notation, it is written as 1.29806821 × 10^8.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 129784032 positive integers (up to 129806821) that are relatively prime to 129806821.
129806821 has 4 divisors, whose sum is 129829612
The reverse of 129806821 is 128608921
Previous prime number is 11593
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 37
Digital Root 1
Name
one hundred twenty-nine million eight hundred six thousand eight hundred twenty-one
Scientific notation
1.29806821 × 10^8
Engineering notation
1.29806821 × 10^6
Prime Factorization
11593 × 11197
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129806821
Product of the distinct prime numbers
The prime factorization of 129806821 is 11593 × 11197.
Since it has a total of 2 prime factors.
7 , 9 , 53 , 53 , 860 , 292 , 6941 , 3503 , 88796 , 97787 , 536747 , 930124 , 2131230 , 9482034 , 33897701 , 41885185 , 202616719 , 25666960 , 3175824292 , 7009278391
n×2
259613642
n×3
389420463
n×4
519227284
n×5
649034105
n÷2
64903410.5
n÷3
43268940.333333
n÷3
32451705.25
n÷5
25961364.2
n2
16849810778126041
n3
2.1872203715601E+24
n4
2.8391612325865E+32
n5
3.685424939085E+40
2 √n
11393.279641964
3 √n
506.32865300332
4 √n
106.73930692095
5 √n
41.943001195892
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
-129806820
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 129806821 can be divided by 4 positive divisors.
The sum of these divisors (counting 129806821) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101111001011000111100101
3
Ternary
100001020212111001
4
Quaternary
13233023013211
5
Quinary
231212304241
6
Senary
20514113301
8
Octal
757130745
10
Decimal
129806821
12
Duodecimal
3757b831
16
Hexadecimal
7bcb1e5
20
Vigesimal
20b5h11
36
Base36
25a7l1
md5
b068cb5bd8d1457bb5dd72e47cf626a0
sha1
d0e9c3422d8dbee5be18fe40ef78e3c8e8be80c0
sha256
6fc007cf892b121709446ca2949108c2e6caf671cbef3e7d8ec1992234d95fd2
sha512
ed06d5c9f7d5a084c383a637b4c85341c0f273a67c9ca480d325bd6869cffa916c8871c822bc4b186af7f9ceb3c0afbac7eb07e26a257b3ec9ae538ed5bba153
ripemd-160
55b17a1cda63fd9ea0318c200961de946c910290
Diameter
259613642
Circumference
815600310.47889
Area
5.2935241754939E+16
Volume
9.1618072681001E+24
Surface area
2.1174096701976E+17
Circumference
815600310.47889
Perimeter
519227284
Area
16849810778126041
Diagonal
183574566.74674
Surface area
101098864668756246
Volume
2.1872203715601E+24
Space diagonal
224832009.141
Perimeter
389420463
Area
7.296182091409E+15
Altitude
112416004.5705
Surface area
7.296182091409E+15
Volume
2.5776639277992E+23
Height
61191522.248912