20161986 is an even 8-digits composite number following 20161985
and preceding 20161987 . In scientific notation, it is written as 2.0161986 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 6203664 positive integers (up to 20161986) that are relatively prime to 20161986.
20161986 has 16 divisors, whose sum is 43425984
The reverse of 20161986 is 68916102
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million one hundred sixty-one thousand nine hundred eighty-six
Scientific notation
2.0161986 × 10^7
Engineering notation
2.0161986 × 10^6
Prime Factorization
2 × 3 × 13 × 258487
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20161986
Product of the distinct prime numbers
The prime factorization of 20161986 is 2 × 3 × 13 × 258487.
Since it has a total of 4 prime factors.
2 , 3 , 81 , 31 , 410 , 376 , 9644 , 6687 , 63238 , 13342 , 861163 , 302710 , 7514081 , 5736298 , 64920330 , 32175013 , 348543124 , 985606438 , 5585442681 , 2975192073
n×2
40323972
n×3
60485958
n×4
80647944
n×5
100809930
n÷2
10080993
n÷3
6720662
n÷3
5040496.5
n÷5
4032397.2
n2
406505679464196
n3
8.1959618182776E+21
n4
1.6524686743665E+29
n5
3.3317050278015E+36
2 √n
4490.21001736
3 √n
272.17262146567
4 √n
67.009029371869
5 √n
28.90058686455
1 , 2 , 3 , 6 , 13 , 26 , 39 , 78 , 258487 , 516974 , 775461 , 1550922 , 3360331 , 6720662 , 10080993 , 20161986
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
-20161985
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 20161986 can be divided by 16 positive divisors.
The sum of these divisors (counting 20161986) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111010010111000010
3
Ternary
1101221100001020
4
Quaternary
1030322113002
5
Quinary
20130140421
6
Senary
2000050310
8
Octal
114722702
10
Decimal
20161986
12
Duodecimal
6903996
16
Hexadecimal
133a5c2
20
Vigesimal
6604j6
36
Base36
c0536
md5
a98ad19f80898011af538a0b4a4e2029
sha1
a6550eecc74aa188d83a5f3aa3b4ebf984e2cb59
sha256
8ac6cb9283093ff1a147a77d2d6b7bd948f5a1a9163ab89fba8e56937c40b3f3
sha512
d066ae29f76599a73184871e1fa8823fe7e26aa8a2d02af9367d61fffc0df9bf9f1f256b5481cf37bd7e831bc6aefd86930acd82fc51b0fcccfe622421e53dc1
ripemd-160
06707545723271d576b1880450b9a8176ae5a470
Diameter
40323972
Circumference
126681494.19876
Area
1.2770752562472E+15
Volume
3.4331164583204E+22
Surface area
5.108301024989E+15
Circumference
126681494.19876
Perimeter
80647944
Area
406505679464196
Diagonal
28513354.045576
Surface area
2439034076785176
Volume
8.1959618182776E+21
Space diagonal
34921584.133492
Perimeter
60485958
Area
1.7602212259932E+14
Altitude
17460792.066746
Surface area
1.7602212259932E+14
Volume
9.6590336334169E+20
Height
9504451.3485255