20161855 is an odd 8-digits composite number following 20161854
and preceding 20161856 . In scientific notation, it is written as 2.0161855 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 13450752 positive integers (up to 20161855) that are relatively prime to 20161855.
20161855 has 8 divisors, whose sum is 21299760
The reverse of 20161855 is 55816102
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred sixty-one thousand eight hundred fifty-five
Scientific notation
2.0161855 × 10^7
Engineering notation
2.0161855 × 10^6
Prime Factorization
35 × 37 × 15569
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20161855
Product of the distinct prime numbers
The prime factorization of 20161855 is 35 × 37 × 15569.
Since it has a total of 3 prime factors.
1 , 3 , 61 , 50 , 693 , 697 , 4144 , 2551 , 76791 , 5578 , 59560 , 700985 , 9196498 , 6356711 , 69559483 , 30736898 , 650213043 , 917294543 , 8223657454 , 2963601979
n×2
40323710
n×3
60485565
n×4
80647420
n×5
100809275
n÷2
10080927.5
n÷3
6720618.3333333
n÷3
5040463.75
n÷5
4032371
n2
406500397041025
n3
8.1958020625836E+21
n4
1.6524257279451E+29
n5
3.3315967925099E+36
2 √n
4490.1954300453
3 √n
272.17203199513
4 √n
67.008920525892
5 √n
28.900549308858
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
-20161854
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 20161855 can be divided by 8 positive divisors.
The sum of these divisors (counting 20161855) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111010010100111111
3
Ternary
1101221022212101
4
Quaternary
1030322110333
5
Quinary
20130134410
6
Senary
2000045531
8
Octal
114722477
10
Decimal
20161855
12
Duodecimal
69038a7
16
Hexadecimal
133a53f
20
Vigesimal
6604cf
36
Base36
c04zj
md5
b14e94fc35f918278c35d34aaf146d68
sha1
4d1f348bc754333ed2291aaaabf6c3517f85329f
sha256
e63b6ad5c4210c4a2fa17d5dbb3dec20b513c35967df7cf867774b28bf1638c6
sha512
d3137a9d64063636336d5f92c79d7720c42d432abffa583640b52a68af7d8e4330240f3244a4857a98c44b262c516716173ac6c622d229938725be6abbe00c44
ripemd-160
cf4dc2ec1a3d72ed2c273d8bc1efefa21bc82587
Diameter
40323710
Circumference
126680671.10149
Area
1.2770586610254E+15
Volume
3.4330495400118E+22
Surface area
5.1082346441017E+15
Circumference
126680671.10149
Perimeter
80647420
Area
406500397041025
Diagonal
28513168.7836
Surface area
2439002382246150
Volume
8.1958020625836E+21
Space diagonal
34921357.234837
Perimeter
60485565
Area
1.7601983524299E+14
Altitude
17460678.617418
Surface area
1.7601983524299E+14
Volume
9.6588453595259E+20
Height
9504389.5945333