20165987 is an odd 8-digits prime number following 20165986
and preceding 20165988 . In scientific notation, it is written as 2.0165987 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 20165986 positive integers (up to 20165987) that are relatively prime to 20165987.
20165987 has 2 divisors, whose sum is 20165988
The reverse of 20165987 is 78956102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred sixty-five thousand nine hundred eighty-seven
Scientific notation
2.0165987 × 10^7
Engineering notation
2.0165987 × 10^6
Prime Factorization
20165987
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20165987
Product of the distinct prime numbers
The prime factorization of 20165987 is 20165987.
Since it has a total of 1 prime factors.
9 , 4 , 27 , 82 , 684 , 869 , 3910 , 4537 , 75349 , 93615 , 673956 , 329502 , 3473666 , 4224962 , 19734768 , 92886876 , 414174055 , 380079569 , 4754170477 , 9145275517
n×2
40331974
n×3
60497961
n×4
80663948
n×5
100829935
n÷2
10082993.5
n÷3
6721995.6666667
n÷3
5041496.75
n÷5
4033197.4
n2
406667031684169
n3
8.2008420742715E+21
n4
1.6537807465881E+29
n5
3.3350121036547E+36
2 √n
4490.6555200772
3 √n
272.19062383631
4 √n
67.012353488571
5 √n
28.901733795916
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20165988
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10082994
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4490.6556314195
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999008231
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20165987 can be divided by 2 positive divisors.
The sum of these divisors (counting 20165987) is 20165988, the average is 10082994.
Base
System
Value
2
Binary
1001100111011010101100011
3
Ternary
1101221112112102
4
Quaternary
1030323111203
5
Quinary
20130302422
6
Senary
2000121015
8
Octal
114732543
10
Decimal
20165987
12
Duodecimal
690616b
16
Hexadecimal
133b563
20
Vigesimal
660ej7
36
Base36
c086b
md5
34a151a4727628caaf286c7cd7fb1b22
sha1
479977fbb31f068582c2f82fb50095e785aefc62
sha256
6a642d78968a8f1f35eec8b7d008df91c4afde26da609801e29fd0058b5a5cb8
sha512
a50e733c0f5cb0ca6a3f09832b0290cdd5fe2bc91788de721531c4fd1f50f3d0cb7b85205671bc8a656e667dfb1685139fecc67d71b0aab4d05ecd113193adce
ripemd-160
175924ac2f5efad9b573a1a35a8c3803c94d6b0d
Diameter
40331974
Circumference
126706633.22317
Area
1.2775821591962E+15
Volume
3.4351606951709E+22
Surface area
5.1103286367846E+15
Circumference
126706633.22317
Perimeter
80663948
Area
406667031684169
Diagonal
28519012.31404
Surface area
2440002190105014
Volume
8.2008420742715E+21
Space diagonal
34928514.068773
Perimeter
60497961
Area
1.7609199016005E+14
Altitude
17464257.034387
Surface area
1.7609199016005E+14
Volume
9.6647850702623E+20
Height
9506337.4380132