29128721 is an odd 8-digits composite number following 29128720
and preceding 29128722 . In scientific notation, it is written as 2.9128721 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 28801344 positive integers (up to 29128721) that are relatively prime to 29128721.
29128721 has 4 divisors, whose sum is 29456100
The reverse of 29128721 is 12782192
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-nine million one hundred twenty-eight thousand seven hundred twenty-one
Scientific notation
2.9128721 × 10^7
Engineering notation
2.9128721 × 10^6
Prime Factorization
89 × 327289
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
29128721
Product of the distinct prime numbers
The prime factorization of 29128721 is 89 × 327289.
Since it has a total of 2 prime factors.
6 , 1 , 71 , 37 , 917 , 38 , 8419 , 7365 , 18525 , 31694 , 764604 , 977010 , 6667150 , 8208749 , 74084211 , 97338217 , 754503779 , 872711846 , 7179404073 , 994514763
n×2
58257442
n×3
87386163
n×4
116514884
n×5
145643605
n÷2
14564360.5
n÷3
9709573.6666667
n÷3
7282180.25
n÷5
5825744.2
n2
848482387095841
n3
2.4715206727129E+22
n4
7.1992236121186E+29
n5
2.0970417601401E+37
2 √n
5397.1030192132
3 √n
307.68557683513
4 √n
73.464978181533
5 √n
31.10744079009
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
-29128720
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 29128721 can be divided by 4 positive divisors.
The sum of these divisors (counting 29128721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101111000111100000010001
3
Ternary
2000210220002112
4
Quaternary
1233013200101
5
Quinary
24424104341
6
Senary
2520155105
8
Octal
157074021
10
Decimal
29128721
12
Duodecimal
9908a95
16
Hexadecimal
1bc7811
20
Vigesimal
9211g1
36
Base36
hcbv5
md5
9a240398fcfd3dd27080adb8f120e370
sha1
4b817eddad93fcdf993efd4d1fdf4a3c9bf780e4
sha256
050488d68092e1151617e1bc8a815f70d03dd73b1c0c1d1b5133e8ad6e4de918
sha512
1dc115f2d254ca67af23b8515e54704d22de21ffc1dcd7b2c73e016820a06ddb3344fb72cc9969c83e7f929b7d73a958aee5248b654b8cb05def5a3d15607d38
ripemd-160
823dd9d3db7a5c0559af6e4d576c287849f386c5
Diameter
58257442
Circumference
183021151.80413
Area
2.6655860340006E+15
Volume
1.0352681584787E+23
Surface area
1.0662344136002E+16
Circumference
183021151.80413
Perimeter
116514884
Area
848482387095841
Diagonal
41194232.292782
Surface area
5090894322575046
Volume
2.4715206727129E+22
Space diagonal
50452424.731499
Perimeter
87386163
Area
3.6740365094433E+14
Altitude
25226212.365749
Surface area
3.6740365094433E+14
Volume
2.9127150458634E+21
Height
13731410.764261