20155212 is an even 8-digits composite number following 20155211
and preceding 20155213 . In scientific notation, it is written as 2.0155212 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 24 positive divisors.
There are 5227200 positive integers (up to 20155212) that are relatively prime to 20155212.
20155212 has 24 divisors, whose sum is 36145200
The reverse of 20155212 is 21255102
Previous prime number is 77
Is Prime? no
Number parity even
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred fifty-five thousand two hundred twelve
Scientific notation
2.0155212 × 10^7
Engineering notation
2.0155212 × 10^6
Prime Factorization
2 × 2 × 99 × 77 × 661
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10077606
Product of the distinct prime numbers
The prime factorization of 20155212 is 2 × 2 × 99 × 77 × 661.
Since it has a total of 5 prime factors.
4 , 10 , 67 , 81 , 116 , 882 , 2024 , 8624 , 68219 , 36024 , 244420 , 915883 , 1355559 , 6920626 , 70129046 , 11334467 , 315503447 , 581390284 , 5519041285 , 1848720686
n×2
40310424
n×3
60465636
n×4
80620848
n×5
100776060
n÷2
10077606
n÷3
6718404
n÷3
5038803
n÷5
4031042.4
n2
406232570764944
n3
8.1877035850724E+21
n4
1.650249015503E+29
n5
3.3261118760253E+36
2 √n
4489.4556462894
3 √n
272.14213664046
4 √n
67.003400259162
5 √n
28.898644606571
1 , 2 , 4 , 77 , 99 , 154 , 198 , 308 , 396 , 661 , 1322 , 2644 , 7623 , 15246 , 30492 , 50897 , 65439 , 101794 , 130878 , 203588 , 261756 , 5038803 , 10077606 , 20155212
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20155211
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20155212 can be divided by 24 positive divisors.
The sum of these divisors (counting 20155212) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100111000101101001100
3
Ternary
1101220222202100
4
Quaternary
1030320231030
5
Quinary
20124431322
6
Senary
1555555100
8
Octal
114705514
10
Decimal
20155212
12
Duodecimal
68bba90
16
Hexadecimal
1338b4c
20
Vigesimal
65j80c
36
Base36
bzzv0
md5
65d604076a743c7edf3188f057fffaca
sha1
2f34083387410635a9c6f2fed3dec456909eab0c
sha256
610e7875fede41d30afa5c8734ddc04f87f76d9c93cd8560c64ce697b3245782
sha512
b0dc5f399a3720032a6cf107b4ca5fa1b68f176dfa9261fe5e18ce0ab777582f919f026d668d65e053d09e34cb37a39c32d74f9e675a1584d4b1d49431f300a1
ripemd-160
ceb24c083eaca13f411f186294278b0ddaf4f2e4
Diameter
40310424
Circumference
126638931.90149
Area
1.276217259964E+15
Volume
3.4296572576846E+22
Surface area
5.1048690398562E+15
Circumference
126638931.90149
Perimeter
80620848
Area
406232570764944
Diagonal
28503774.162905
Surface area
2437395424589664
Volume
8.1877035850724E+21
Space diagonal
34909851.221322
Perimeter
60465636
Area
1.7590386306355E+14
Altitude
17454925.610661
Surface area
1.7590386306355E+14
Volume
9.6493012122502E+20
Height
9501258.0543017