28161898 is an even 8-digits composite number following 28161897
and preceding 28161899 . In scientific notation, it is written as 2.8161898 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 14080948 positive integers (up to 28161898) that are relatively prime to 28161898.
28161898 has 4 divisors, whose sum is 42242850
The reverse of 28161898 is 89816182
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-eight million one hundred sixty-one thousand eight hundred ninety-eight
Scientific notation
2.8161898 × 10^7
Engineering notation
2.8161898 × 10^6
Prime Factorization
2 × 14080949
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28161898
Product of the distinct prime numbers
The prime factorization of 28161898 is 2 × 14080949.
Since it has a total of 2 prime factors.
3 , 10 , 72 , 78 , 178 , 960 , 3426 , 5859 , 58289 , 64138 , 454163 , 751660 , 2456652 , 8025979 , 98608272 , 60447237 , 588545426 , 375548878 , 4482009742 , 6587932130
n×2
56323796
n×3
84485694
n×4
112647592
n×5
140809490
n÷2
14080949
n÷3
9387299.3333333
n÷3
7040474.5
n÷5
5632379.6
n2
793092498962404
n3
2.2334990060344E+22
n4
6.2899571191043E+29
n5
1.7713713081259E+37
2 √n
5306.7784954716
3 √n
304.24303193819
4 √n
72.847638914872
5 √n
30.89814338622
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
-28161897
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 28161898 can be divided by 4 positive divisors.
The sum of these divisors (counting 28161898) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011011011011101101010
3
Ternary
1221222202212021
4
Quaternary
1223123131222
5
Quinary
24202140043
6
Senary
2443335054
8
Octal
153333552
10
Decimal
28161898
12
Duodecimal
952148a
16
Hexadecimal
1adb76a
20
Vigesimal
8g04ei
36
Base36
grluy
md5
71dbc52b00bf6396b32fd382332808aa
sha1
10220d519d81ab4452ce392a51d7d9615aafc4e9
sha256
33e5b3f57dd91898726f02f6680f3c488b438a0cc8d1799a004c48020ff2edec
sha512
bc5ebd5ba1cba4049cdf248f5198595247669dedabdd10f3dfb8649579d4e4ece23ee2d6e7357182addd0bcde44846b53231597902b5924fbfaad795c8884315
ripemd-160
672cc806f5963a155f1a50a008ec2129cdb16665
Diameter
56323796
Circumference
176946423.73589
Area
2.4915735683575E+15
Volume
9.3556587588772E+22
Surface area
9.9662942734298E+15
Circumference
176946423.73589
Perimeter
112647592
Area
793092498962404
Diagonal
39826938.093768
Surface area
4758554993774424
Volume
2.2334990060344E+22
Space diagonal
48777838.173572
Perimeter
84485694
Area
3.4341912582616E+14
Altitude
24388919.086786
Surface area
3.4341912582616E+14
Volume
2.6322038215673E+21
Height
13275646.031256