28991017 is an odd 8-digits composite number following 28991016
and preceding 28991018 . In scientific notation, it is written as 2.8991017 × 10^7.
The sum of its digits is 37. It has a total of 5 prime factors and 32 positive divisors.
There are 23094720 positive integers (up to 28991017) that are relatively prime to 28991017.
28991017 has 32 divisors, whose sum is 35896320
The reverse of 28991017 is 71019982
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-eight million nine hundred ninety-one thousand seventeen
Scientific notation
2.8991017 × 10^7
Engineering notation
2.8991017 × 10^6
Prime Factorization
11 × 19 × 23 × 37 × 163
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
28991017
Product of the distinct prime numbers
The prime factorization of 28991017 is 11 × 19 × 23 × 37 × 163.
Since it has a total of 5 prime factors.
3 , 5 , 7 , 99 , 735 , 325 , 1384 , 5456 , 55202 , 37621 , 105912 , 908923 , 1789260 , 4398448 , 65016570 , 35388732 , 364845419 , 910498439 , 7872663063 , 4360265958
n×2
57982034
n×3
86973051
n×4
115964068
n×5
144955085
n÷2
14495508.5
n÷3
9663672.3333333
n÷3
7247754.25
n÷5
5798203.4
n2
840479066694289
n3
2.4366342910678E+22
n4
7.064050615513E+29
n5
2.047940114832E+37
2 √n
5384.3306919245
3 √n
307.1999567385
4 √n
73.377998691191
5 √n
31.077973363196
1 , 11 , 19 , 23 , 37 , 163 , 209 , 253 , 407 , 437 , 703 , 851 , 1793 , 3097 , 3749 , 4807 , 6031 , 7733 , 9361 , 16169 , 34067 , 41239 , 66341 , 71231 , 114589 , 138713 , 177859 , 783541 , 1260479 , 1525843 , 2635547 , 28991017
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28991016
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28991017 can be divided by 32 positive divisors.
The sum of these divisors (counting 28991017) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101110100101111000101001
3
Ternary
2000112220012101
4
Quaternary
1232211320221
5
Quinary
24410203032
6
Senary
2513213401
8
Octal
156457051
10
Decimal
28991017
12
Duodecimal
9861261
16
Hexadecimal
1ba5e29
20
Vigesimal
913hah
36
Base36
h9dm1
md5
96b710638e48b755c263db3c2a88c59d
sha1
af829988a77637d87912db5caff4be0736e9d134
sha256
fd9c7d0add76f2ef380086babb238fe0172eb88d8b6a815bd2990644a2e63f32
sha512
0bec74221af42db8575192374f0371825ce6227800c876a84568c331a4f008afaba66ea27dc4455cf318fcf9ee0263392429dca8f677f457c831c6656eb19b22
ripemd-160
e8f85c6b03669ef48e9d731ed35eb0264d03d773
Diameter
57982034
Circumference
182155932.05459
Area
2.6404428614228E+15
Volume
1.0206549851072E+23
Surface area
1.0561771445691E+16
Circumference
182155932.05459
Perimeter
115964068
Area
840479066694289
Diagonal
40999489.428389
Surface area
5042874400165734
Volume
2.4366342910678E+22
Space diagonal
50213914.407093
Perimeter
86973051
Area
3.6393811155314E+14
Altitude
25106957.203547
Surface area
3.6393811155314E+14
Volume
2.8716010508096E+21
Height
13666496.47613