19987108 is an even 8-digits composite number following 19987107
and preceding 19987109 . In scientific notation, it is written as 1.9987108 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors.
There are 9856512 positive integers (up to 19987108) that are relatively prime to 19987108.
19987108 has 12 divisors, whose sum is 35457100
The reverse of 19987108 is 80178991
Previous prime number is 73
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
nineteen million nine hundred eighty-seven thousand one hundred eight
Scientific notation
1.9987108 × 10^7
Engineering notation
1.9987108 × 10^6
Prime Factorization
2 × 2 × 73 × 68449
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9993554
Product of the distinct prime numbers
The prime factorization of 19987108 is 2 × 2 × 73 × 68449.
Since it has a total of 4 prime factors.
10 , 5 , 76 , 6 , 366 , 590 , 8682 , 328 , 50816 , 34618 , 254710 , 600522 , 9428477 , 2975059 , 10552479 , 71922512 , 896635387 , 63310053 , 3649308189 , 2903545419
n×2
39974216
n×3
59961324
n×4
79948432
n×5
99935540
n÷2
9993554
n÷3
6662369.3333333
n÷3
4996777
n÷5
3997421.6
n2
399484486203664
n3
7.9845395700771E+21
n4
1.5958785471741E+29
n5
3.1896996877251E+36
2 √n
4470.6943532297
3 √n
271.38342533664
4 √n
66.863251141638
5 √n
28.850277301208
1 , 2 , 4 , 73 , 146 , 292 , 68449 , 136898 , 273796 , 4996777 , 9993554 , 19987108
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19987107
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19987108 can be divided by 12 positive divisors.
The sum of these divisors (counting 19987108) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100001111101010100100
3
Ternary
1101121110011021
4
Quaternary
1030033222210
5
Quinary
20104041413
6
Senary
1552220524
8
Octal
114175244
10
Decimal
19987108
12
Duodecimal
683a744
16
Hexadecimal
130faa4
20
Vigesimal
64i7f8
36
Base36
bwe5g
md5
5c4e9da7710b3fd4a4b0562d5ca4638f
sha1
563d4f8f3d7d15d7107b3a9be5efc20ac863f0ef
sha256
e59b038b1ad66e5ca0e23c941904f99094a3a34befb8a22118dc56c5dfa75c01
sha512
77f3e8bcc9c98b29d475d4cd799ea1139b1557697a7b561fc98f4fac8929bd0b0ec27b56dd337be47868fd0c330f06bff29bd0ea647e1150006e7b58e7b8fde8
ripemd-160
9280db104a3595695715101ea490e1672cb3eb53
Diameter
39974216
Circumference
125582703.31861
Area
1.2550175270805E+15
Volume
3.3445561140868E+22
Surface area
5.0200701083221E+15
Circumference
125582703.31861
Perimeter
79948432
Area
399484486203664
Diagonal
28266039.206216
Surface area
2396906917221984
Volume
7.9845395700771E+21
Space diagonal
34618686.552366
Perimeter
59961324
Area
1.7298185673507E+14
Altitude
17309343.276183
Surface area
1.7298185673507E+14
Volume
9.4098701244231E+20
Height
9422013.0687386