28161897 is an odd 8-digits composite number following 28161896
and preceding 28161898 . In scientific notation, it is written as 2.8161897 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 18762240 positive integers (up to 28161897) that are relatively prime to 28161897.
28161897 has 8 divisors, whose sum is 37573920
The reverse of 28161897 is 79816182
Previous prime number is 2689
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-eight million one hundred sixty-one thousand eight hundred ninety-seven
Scientific notation
2.8161897 × 10^7
Engineering notation
2.8161897 × 10^6
Prime Factorization
3 × 2689 × 3491
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28161897
Product of the distinct prime numbers
The prime factorization of 28161897 is 3 × 2689 × 3491.
Since it has a total of 3 prime factors.
7 , 3 , 77 , 58 , 758 , 820 , 5240 , 889 , 99682 , 73192 , 909894 , 516971 , 3444714 , 3094096 , 7391605 , 99381858 , 658843716 , 212056830 , 3188197807 , 8873765393
n×2
56323794
n×3
84485691
n×4
112647588
n×5
140809485
n÷2
14080948.5
n÷3
9387299
n÷3
7040474.25
n÷5
5632379.4
n2
793092442638609
n3
2.2334987681067E+22
n4
6.2899562257048E+29
n5
1.7713709936281E+37
2 √n
5306.7784012525
3 √n
304.24302833708
4 √n
72.847638268186
5 √n
30.898143166788
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28161896
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28161897 can be divided by 8 positive divisors.
The sum of these divisors (counting 28161897) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011011011011101101001
3
Ternary
1221222202212020
4
Quaternary
1223123131221
5
Quinary
24202140042
6
Senary
2443335053
8
Octal
153333551
10
Decimal
28161897
12
Duodecimal
9521489
16
Hexadecimal
1adb769
20
Vigesimal
8g04eh
36
Base36
grlux
md5
f2ed9d2ffbd8b1fd3e21ff644e390f71
sha1
296c3b0b9af5b2c7ec76a225a906a300e7447644
sha256
7c60498a281a407bc8fe2609a52096f848a871efd947cc9498897a307aedb6ef
sha512
0bb0d5e8560e6825d16d0a950c00994af76f109e6bfd5c135f10edf8ce87b821bed52c45db7207065ef9bf1efdcec0acf4309772df5c47d890ac048406e1a350
ripemd-160
59ceff5feabb2ed3e442733b9315bcaa889907ca
Diameter
56323794
Circumference
176946417.4527
Area
2.491573391411E+15
Volume
9.3556577622478E+22
Surface area
9.9662935656442E+15
Circumference
176946417.4527
Perimeter
112647588
Area
793092442638609
Diagonal
39826936.679554
Surface area
4758554655831654
Volume
2.2334987681067E+22
Space diagonal
48777836.441522
Perimeter
84485691
Area
3.4341910143724E+14
Altitude
24388918.220761
Surface area
3.4341910143724E+14
Volume
2.6322035411667E+21
Height
13275645.559851