20169987 is an odd 8-digits composite number following 20169986
and preceding 20169988 . In scientific notation, it is written as 2.0169987 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 13446656 positive integers (up to 20169987) that are relatively prime to 20169987.
20169987 has 4 divisors, whose sum is 26893320
The reverse of 20169987 is 78996102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million one hundred sixty-nine thousand nine hundred eighty-seven
Scientific notation
2.0169987 × 10^7
Engineering notation
2.0169987 × 10^6
Prime Factorization
3 × 6723329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20169987
Product of the distinct prime numbers
The prime factorization of 20169987 is 3 × 6723329.
Since it has a total of 2 prime factors.
4 , 5 , 26 , 42 , 356 , 979 , 6241 , 641 , 23893 , 84526 , 149748 , 869633 , 6421856 , 7154389 , 41882194 , 86995987 , 411537010 , 680136339 , 3117846031 , 3726399201
n×2
40339974
n×3
60509961
n×4
80679948
n×5
100849935
n÷2
10084993.5
n÷3
6723329
n÷3
5042496.75
n÷5
4033997.4
n2
406828375580169
n3
8.2057230466831E+21
n4
1.655093271772E+29
n5
3.3383209775429E+36
2 √n
4491.1008672707
3 √n
272.20861932737
4 √n
67.015676280037
5 √n
28.902880258658
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
-20169986
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 20169987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20169987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111100010100000011
3
Ternary
1101221202000120
4
Quaternary
1030330110003
5
Quinary
20130414422
6
Senary
2000151323
8
Octal
114742403
10
Decimal
20169987
12
Duodecimal
6908543
16
Hexadecimal
133c503
20
Vigesimal
6614j7
36
Base36
c0b9f
md5
6dd765ee740188fa90ce9d1c2090a44e
sha1
ebcc941a867d65acf3b4539c6a19a8b1b72a21b9
sha256
22f5f29bf02409d58f82b16d767e2ed099d0aae4b342baa8da8825f20469867f
sha512
a3a698da0c0b42282c7fd8d1a1d1df892d952c8abf08d80bcfc401ff4a2a55d6644446764d4b82c24b375be545555c7fe807bbd8e2ecf84ad7449cd0839176be
ripemd-160
54a339ba2237755389c826eb1fb62b58d8e684c4
Diameter
40339974
Circumference
126731765.9644
Area
1.2780890359945E+15
Volume
3.4372052321136E+22
Surface area
5.1123561439781E+15
Circumference
126731765.9644
Perimeter
80679948
Area
406828375580169
Diagonal
28524669.168289
Surface area
2440970253481014
Volume
8.2057230466831E+21
Space diagonal
34935442.272004
Perimeter
60509961
Area
1.7616185411639E+14
Altitude
17467721.136002
Surface area
1.7616185411639E+14
Volume
9.670537351414E+20
Height
9508223.0560963