28169989 is an odd 8-digits composite number following 28169988
and preceding 28169990 . In scientific notation, it is written as 2.8169989 × 10^7.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 26687340 positive integers (up to 28169989) that are relatively prime to 28169989.
28169989 has 4 divisors, whose sum is 29652640
The reverse of 28169989 is 98996182
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
twenty-eight million one hundred sixty-nine thousand nine hundred eighty-nine
Scientific notation
2.8169989 × 10^7
Engineering notation
2.8169989 × 10^6
Prime Factorization
19 × 1482631
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28169989
Product of the distinct prime numbers
The prime factorization of 28169989 is 19 × 1482631.
Since it has a total of 2 prime factors.
6 , 6 , 82 , 46 , 746 , 730 , 4561 , 5731 , 72325 , 96298 , 686291 , 190370 , 5205869 , 3338239 , 47989830 , 31332172 , 779872778 , 913012443 , 861521421 , 1022614062
n×2
56339978
n×3
84509967
n×4
112679956
n×5
140849945
n÷2
14084994.5
n÷3
9389996.3333333
n÷3
7042497.25
n÷5
5633997.8
n2
793548280260121
n3
2.2354246325897E+22
n4
6.297188731038E+29
n5
1.7739173728426E+37
2 √n
5307.5407676249
3 √n
304.27216580155
4 √n
72.852870688977
5 √n
30.899918608566
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
-28169988
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 28169989 can be divided by 4 positive divisors.
The sum of these divisors (counting 28169989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011011101011100000101
3
Ternary
1222000011221221
4
Quaternary
1223131130011
5
Quinary
24202414424
6
Senary
2443440341
8
Octal
153353405
10
Decimal
28169989
12
Duodecimal
95260b1
16
Hexadecimal
1add705
20
Vigesimal
8g14j9
36
Base36
grs3p
md5
c1f947cb7548f343599b7e126fcf6946
sha1
5998648e5ee70b4c262b67c598d73f2c413999c3
sha256
7b3e8c4943ca4c3cfe7a0c3f06eb630752b44bdd44f0c0df02225db5eb9507d8
sha512
030f500ecf02bb0ef4129a409f5796b2ac6a8af0fa81b046397e6b4fd421a731128f1a05aac8a45dd02765906df00cd1e77e21d1c037acfdeee1cd3acd1db336
ripemd-160
3446140b1d25bedf81fcc02734e252c01b6f5470
Diameter
56339978
Circumference
176997260.98821
Area
2.493005447534E+15
Volume
9.3637248045298E+22
Surface area
9.972021790136E+15
Circumference
176997260.98821
Perimeter
112679956
Area
793548280260121
Diagonal
39838380.495701
Surface area
4761289681560726
Volume
2.2354246325897E+22
Space diagonal
48791852.196656
Perimeter
84509967
Area
3.4361648491736E+14
Altitude
24395926.098328
Surface area
3.4361648491736E+14
Volume
2.634473194226E+21
Height
13279460.165234