20185087 is an odd 8-digits composite number following 20185086
and preceding 20185088 . In scientific notation, it is written as 2.0185087 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 17388000 positive integers (up to 20185087) that are relatively prime to 20185087.
20185087 has 16 divisors, whose sum is 23224320
The reverse of 20185087 is 78058102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred eighty-five thousand eighty-seven
Scientific notation
2.0185087 × 10^7
Engineering notation
2.0185087 × 10^6
Prime Factorization
13 × 71 × 19 × 1151
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20185087
Product of the distinct prime numbers
The prime factorization of 20185087 is 13 × 71 × 19 × 1151.
Since it has a total of 4 prime factors.
6 , 7 , 27 , 47 , 236 , 164 , 3559 , 608 , 50637 , 18343 , 530016 , 53945 , 7668089 , 9866141 , 7421468 , 11470806 , 962443404 , 556506282 , 4607048327 , 9001864255
n×2
40370174
n×3
60555261
n×4
80740348
n×5
100925435
n÷2
10092543.5
n÷3
6728362.3333333
n÷3
5046271.75
n÷5
4037017.4
n2
407437737197569
n3
8.2241661724161E+21
n4
1.6600550969268E+29
n5
3.350835655626E+36
2 √n
4492.7816550551
3 √n
272.27653087103
4 √n
67.028215365286
5 √n
28.90720651686
1 , 13 , 19 , 71 , 247 , 923 , 1151 , 1349 , 14963 , 17537 , 21869 , 81721 , 284297 , 1062373 , 1552699 , 20185087
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
-20185086
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 20185087 can be divided by 16 positive divisors.
The sum of these divisors (counting 20185087) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111111111111111111
3
Ternary
1101222111201211
4
Quaternary
1030333333333
5
Quinary
20131410322
6
Senary
2000345251
8
Octal
114777777
10
Decimal
20185087
12
Duodecimal
6915227
16
Hexadecimal
133ffff
20
Vigesimal
6632e7
36
Base36
c0mwv
md5
a6d47296921a1eb45f61e0f5ce072871
sha1
1f9d1b2964018ed5457e3be6ef09e9732ccc22cc
sha256
f1cad9e1a680f8b569bb84735be3ba39cef119c72e98ba5cceed02bb59f50b3f
sha512
db37da7c7e09c73a159e18d2929f321f4fddcb37d77d1f2bef07b033aa64db7f4c47829a2c7c03d87c344e3e2e31cb45447829fe3ddddb57fcba2bb23330eef7
ripemd-160
51996be9976821b8b2974470b8f076964ffe67ab
Diameter
40370174
Circumference
126826642.06254
Area
1.2800034019751E+15
Volume
3.4449306705552E+22
Surface area
5.1200136079005E+15
Circumference
126826642.06254
Perimeter
80740348
Area
407437737197569
Diagonal
28546023.793081
Surface area
2444626423185414
Volume
8.2241661724161E+21
Space diagonal
34961596.239198
Perimeter
60555261
Area
1.7642571543677E+14
Altitude
17480798.119599
Surface area
1.7642571543677E+14
Volume
9.692272783534E+20
Height
9515341.2643603