28921189 is an odd 8-digits composite number following 28921188
and preceding 28921190 . In scientific notation, it is written as 2.8921189 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 24813360 positive integers (up to 28921189) that are relatively prime to 28921189.
28921189 has 16 divisors, whose sum is 33361920
The reverse of 28921189 is 98112982
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-eight million nine hundred twenty-one thousand one hundred eighty-nine
Scientific notation
2.8921189 × 10^7
Engineering notation
2.8921189 × 10^6
Prime Factorization
11 × 23 × 79 × 1447
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28921189
Product of the distinct prime numbers
The prime factorization of 28921189 is 11 × 23 × 79 × 1447.
Since it has a total of 4 prime factors.
10 , 8 , 91 , 18 , 29 , 937 , 6256 , 8101 , 59268 , 78365 , 548286 , 811146 , 1024881 , 7603663 , 31449167 , 7269295 , 710201375 , 467329531 , 4091698592 , 327525696
n×2
57842378
n×3
86763567
n×4
115684756
n×5
144605945
n÷2
14460594.5
n÷3
9640396.3333333
n÷3
7230297.25
n÷5
5784237.8
n2
836435173173721
n3
2.4190699729605E+22
n4
6.9962379892215E+29
n5
2.0233952117526E+37
2 √n
5377.8424112278
3 √n
306.95311701179
4 √n
73.333774014623
5 √n
31.062987986649
1 , 11 , 23 , 79 , 253 , 869 , 1447 , 1817 , 15917 , 19987 , 33281 , 114313 , 366091 , 1257443 , 2629199 , 28921189
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28921188
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28921189 can be divided by 16 positive divisors.
The sum of these divisors (counting 28921189) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101110010100110101100101
3
Ternary
2000102100102011
4
Quaternary
1232110311211
5
Quinary
24400434224
6
Senary
2511514221
8
Octal
156246545
10
Decimal
28921189
12
Duodecimal
9828971
16
Hexadecimal
1b94d65
20
Vigesimal
90f2j9
36
Base36
h7vqd
md5
ab59c5ba608db051890bae3449318310
sha1
d73992debdf56b7d057e8fcd681f79a1914706b2
sha256
b9abfac96b45248cdefa4501986e8ddff926b10d21667aac156101904af7b016
sha512
d144bc63102782bc6aefd727acc72e355f203c61bd5f7390a37e50ded8dfba5f1b6df70879d80aeec780e687f15632e40955270769e5368445574c15f238a54e
ripemd-160
be4994164299f7b850deb8f026552c62ff96b3dc
Diameter
57842378
Circumference
181717189.79096
Area
2.6277385952467E+15
Volume
1.013297660743E+23
Surface area
1.0510954380987E+16
Circumference
181717189.79096
Perimeter
115684756
Area
836435173173721
Diagonal
40900737.723756
Surface area
5018611039042326
Volume
2.4190699729605E+22
Space diagonal
50092968.763302
Perimeter
86763567
Area
3.6218705429364E+14
Altitude
25046484.381651
Surface area
3.6218705429364E+14
Volume
2.8509013034085E+21
Height
13633579.241252