28971521 is an odd 8-digits prime number following 28971520
and preceding 28971522 . In scientific notation, it is written as 2.8971521 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 28971520 positive integers (up to 28971521) that are relatively prime to 28971521.
28971521 has 2 divisors, whose sum is 28971522
The reverse of 28971521 is 12517982
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 35 Digital Root 8
Name
twenty-eight million nine hundred seventy-one thousand five hundred twenty-one
Scientific notation
2.8971521 × 10^7
Engineering notation
2.8971521 × 10^6
Prime Factorization
28971521
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
28971521 Product of the distinct prime numbers
The prime factorization of 28971521 is 28971521.
Since it has a total of 1 prime factors.
8 , 4 , 24 , 47 , 406 , 658 , 1409 , 4556 , 8426 , 65647 , 633554 , 164275 , 6301469 , 9189731 , 79368157 , 60455437 , 791814647 , 113254047 , 7436706811 , 6943894482
n×2
57943042
n×3
86914563
n×4
115886084
n×5
144857605
n÷2
14485760.5
n÷3
9657173.6666667
n÷3
7242880.25
n÷5
5794304.2
n2
839349029053441
n3
2.4317218021551E+22
n4
7.0450679257295E+29
n5
2.041063333567E+37
2 √n5382.5199488715
3 √n307.13107892715
4 √n73.365659193328
5 √n31.073792349355
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
28971522 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
14485761 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
5382.5200417648 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999309667 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28971521 can be divided by 2 positive divisors.
The sum of these divisors (counting 28971521) is 28971522, the average is 14485761.
Base
System
Value
2
Binary
1101110100001001000000001
3
Ternary
2000111220110022
4
Quaternary
1232201020001
5
Quinary
24404042041
6
Senary
2512543225
8
Octal
156411001
10
Decimal
28971521
12
Duodecimal
9851b15
16
Hexadecimal
1ba1201
20
Vigesimal
9118g1
36
Base36
h8ykh
md5
c21fdb079652ebe0c2481aa24aeae4f4
sha1
ae3f77df2967c3d8a1b97b4eeb4fd3652c01289e
sha256
5ad3e149a0766dd0b00c01a5b9243008990dd5bba3df93ebc819054886a415e6
sha512
4f18d8ed51a32c872fc1c037e4d0159cde0e8fb8b652d278ca385b697842c2ca8628f996962d55a8a4cdfdc8522f70c794a5a7811ab40786aad12d2453581060
ripemd-160
5eeedb7eb6b523fea3eacca462f13469e36be9f9
Diameter
57943042
Circumference
182033435.07384
Area
2.636892743472E+15
Volume
1.0185972465633E+23
Surface area
1.0547570973888E+16
Circumference
182033435.07384
Perimeter
115886084
Area
839349029053441
Diagonal
40971917.920777
Surface area
5036094174320646
Volume
2.4317218021551E+22
Space diagonal
50180146.344549
Perimeter
86914563
Area
3.6344879090104E+14
Altitude
25090073.172274
Surface area
3.6344879090104E+14
Volume
2.8658116271051E+21
Height
13657305.973592