20347987 is an odd 8-digits composite number following 20347986
and preceding 20347988 . In scientific notation, it is written as 2.0347987 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 18067560 positive integers (up to 20347987) that are relatively prime to 20347987.
20347987 has 8 divisors, whose sum is 22714560
The reverse of 20347987 is 78974302
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million three hundred forty-seven thousand nine hundred eighty-seven
Scientific notation
2.0347987 × 10^7
Engineering notation
2.0347987 × 10^6
Prime Factorization
11 × 43 × 43019
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20347987
Product of the distinct prime numbers
The prime factorization of 20347987 is 11 × 43 × 43019.
Since it has a total of 3 prime factors.
2 , 10 , 55 , 42 , 781 , 684 , 1406 , 5956 , 77669 , 78754 , 93240 , 617133 , 2905286 , 9314663 , 44759937 , 11628982 , 767907187 , 941407502 , 2657648837 , 3058478831
n×2
40695974
n×3
61043961
n×4
81391948
n×5
101739935
n÷2
10173993.5
n÷3
6782662.3333333
n÷3
5086996.75
n÷5
4069597.4
n2
414040574952169
n3
8.4248922365993E+21
n4
1.7142959770672E+29
n5
3.4882472255516E+36
2 √n
4510.8743054978
3 √n
273.00702169455
4 √n
67.163042705775
5 √n
28.953714673529
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20347986
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20347987 can be divided by 8 positive divisors.
The sum of these divisors (counting 20347987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101100111110001010011
3
Ternary
1102021210012011
4
Quaternary
1031213301103
5
Quinary
20202113422
6
Senary
2004043351
8
Octal
115476123
10
Decimal
20347987
12
Duodecimal
6993557
16
Hexadecimal
1367c53
20
Vigesimal
6739j7
36
Base36
c44lv
md5
93249ce9ed0b123d3ae1a778ed49e0fb
sha1
227767335ca2f9a14d75448831599e914604c932
sha256
def6ab05f0830cbe2eb7f7357a7d872587455730d74c9502931069cf5b3d74c9
sha512
e42a1e9f0a1f4f1720c7ee78961df0e4113ef18bed16b93841b19bdd9cf3a8397c945bde96aa724459de69ec79bcb11a6c419347515f277caa66b047a962b49e
ripemd-160
18b1b530855e2a8a6af1a5fd22a9e3e49f712611
Diameter
40695974
Circumference
127850172.94908
Area
1.3007468285578E+15
Volume
3.5290106077048E+22
Surface area
5.2029873142313E+15
Circumference
127850172.94908
Perimeter
81391948
Area
414040574952169
Diagonal
28776399.182391
Surface area
2484243449713014
Volume
8.4248922365993E+21
Space diagonal
35243747.315751
Perimeter
61043961
Area
1.7928482805305E+14
Altitude
17621873.657876
Surface area
1.7928482805305E+14
Volume
9.9288307187754E+20
Height
9592133.0607971