20121185 is an odd 8-digits composite number following 20121184
and preceding 20121186 . In scientific notation, it is written as 2.0121185 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 13535808 positive integers (up to 20121185) that are relatively prime to 20121185.
20121185 has 16 divisors, whose sum is 28118016
The reverse of 20121185 is 58112102
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred twenty-one thousand one hundred eighty-five
Scientific notation
2.0121185 × 10^7
Engineering notation
2.0121185 × 10^6
Prime Factorization
5 × 7 × 53 × 10847
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121185
Product of the distinct prime numbers
The prime factorization of 20121185 is 5 × 7 × 53 × 10847.
Since it has a total of 4 prime factors.
3 , 6 , 69 , 24 , 173 , 185 , 4622 , 7038 , 18654 , 47717 , 737989 , 667931 , 2221028 , 5556037 , 10797058 , 9795483 , 993862703 , 744193152 , 3184535285 , 3001574723
n×2
40242370
n×3
60363555
n×4
80484740
n×5
100605925
n÷2
10060592.5
n÷3
6707061.6666667
n÷3
5030296.25
n÷5
4024237
n2
404862085804225
n3
8.1463049279527E+21
n4
1.6391330852175E+29
n5
3.2981300047282E+36
2 √n
4485.6643878025
3 √n
271.98890255329
4 √n
66.975102745741
5 √n
28.888880393738
1 , 5 , 7 , 35 , 53 , 265 , 371 , 1855 , 10847 , 54235 , 75929 , 379645 , 574891 , 2874455 , 4024237 , 20121185
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121184
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121185 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121185) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000011001100001
3
Ternary
1101212021002002
4
Quaternary
1030300121201
5
Quinary
20122334220
6
Senary
1555133345
8
Octal
114603141
10
Decimal
20121185
12
Duodecimal
68a4255
16
Hexadecimal
1330661
20
Vigesimal
65f2j5
36
Base36
bz9lt
md5
ae26159b8b666ffb1822fa20d1b3ee35
sha1
f08bc23f52924d6a38bb97335769870b1e69abbf
sha256
e51d983f6aee0dfa07aaaccfcf03732b887e2bacb6b69c81b45a1e89fabf7029
sha512
298c755e4e085a5e1a95e3a2ca02e783d994af3f4b0feb9210d1cfa1d368a65d638d28bdd0ac87ae7446973ea500cb493a2163b585b6951dafbeff893248704f
ripemd-160
77edea6f644c3f8b5bd44cd4ee3279cc21cfba7d
Diameter
40242370
Circumference
126425133.95504
Area
1.2719117544796E+15
Volume
3.4123162287411E+22
Surface area
5.0876470179184E+15
Circumference
126425133.95504
Perimeter
80484740
Area
404862085804225
Diagonal
28455652.718018
Surface area
2429172514825350
Volume
8.1463049279527E+21
Space diagonal
34850914.728493
Perimeter
60363555
Area
1.7531042566781E+14
Altitude
17425457.364246
Surface area
1.7531042566781E+14
Volume
9.6005124269479E+20
Height
9485217.5726727