20995887 is an odd 8-digits composite number following 20995886
and preceding 20995888 . In scientific notation, it is written as 2.0995887 × 10^7.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 12453120 positive integers (up to 20995887) that are relatively prime to 20995887.
20995887 has 16 divisors, whose sum is 31191552
The reverse of 20995887 is 78859902
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
twenty million nine hundred ninety-five thousand eight hundred eighty-seven
Scientific notation
2.0995887 × 10^7
Engineering notation
2.0995887 × 10^6
Prime Factorization
3 × 11 × 47 × 13537
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20995887
Product of the distinct prime numbers
The prime factorization of 20995887 is 3 × 11 × 47 × 13537.
Since it has a total of 4 prime factors.
8 , 8 , 72 , 49 , 504 , 382 , 3851 , 3604 , 46309 , 92503 , 777671 , 530751 , 8014876 , 1124644 , 28468995 , 39568864 , 296616946 , 249695541 , 7464167481 , 6279089639
n×2
41991774
n×3
62987661
n×4
83983548
n×5
104979435
n÷2
10497943.5
n÷3
6998629
n÷3
5248971.75
n÷5
4199177.4
n2
440827270916769
n3
9.2555595666869E+21
n4
1.9432868278393E+29
n5
4.0801030645902E+36
2 √n
4582.126907889
3 √n
275.87440462852
4 √n
67.691409409828
5 √n
29.135793160984
1 , 3 , 11 , 33 , 47 , 141 , 517 , 1551 , 13537 , 40611 , 148907 , 446721 , 636239 , 1908717 , 6998629 , 20995887
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
-20995886
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 20995887 can be divided by 16 positive divisors.
The sum of these divisors (counting 20995887) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000101111100101111
3
Ternary
1110111200221110
4
Quaternary
1100011330233
5
Quinary
20333332022
6
Senary
2030003103
8
Octal
120057457
10
Decimal
20995887
12
Duodecimal
7046493
16
Hexadecimal
1405f2f
20
Vigesimal
6b49e7
36
Base36
ci0j3
md5
8c6aa6e294e733989bebb82da6cf2391
sha1
a194bc671919df086d4af0bd66c43c94075663e8
sha256
7daa59fa75dcd09d1c4371f9785cc22ffa37a2d431c833909a4464909e163d37
sha512
a6e9f99ae6cf6cc67a601bf3343608af2c6729b2ebe5d80d1f78dcd790d7843d0fbd931c1738828c3e0c40572c1947c7bcbdec07ab42583508e4ea47b1e32665
ripemd-160
19716fb75395525c2e15c83bdf5e538a50b9786d
Diameter
41991774
Circumference
131921048.7096
Area
1.3848997158142E+15
Volume
3.8769597252755E+22
Surface area
5.5395988632566E+15
Circumference
131921048.7096
Perimeter
83983548
Area
440827270916769
Diagonal
29692668.149453
Surface area
2644963625500614
Volume
9.2555595666869E+21
Space diagonal
36365943.033975
Perimeter
62987661
Area
1.9088380764744E+14
Altitude
18182971.516987
Surface area
1.9088380764744E+14
Volume
1.0907781555467E+21
Height
9897556.0498177