20556988 is an even 8-digits composite number following 20556987
and preceding 20556989 . In scientific notation, it is written as 2.0556988 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors.
There are 10204272 positive integers (up to 20556988) that are relatively prime to 20556988.
20556988 has 12 divisors, whose sum is 36234520
The reverse of 20556988 is 88965502
Previous prime number is 139
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million five hundred fifty-six thousand nine hundred eighty-eight
Scientific notation
2.0556988 × 10^7
Engineering notation
2.0556988 × 10^6
Prime Factorization
2 × 2 × 139 × 36973
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10278494
Product of the distinct prime numbers
The prime factorization of 20556988 is 2 × 2 × 139 × 36973.
Since it has a total of 4 prime factors.
1 , 5 , 31 , 95 , 343 , 740 , 5 , 7522 , 42851 , 77340 , 94639 , 140224 , 4110354 , 4312572 , 55744390 , 76122898 , 786891408 , 783643940 , 7160941412 , 4406187329
n×2
41113976
n×3
61670964
n×4
82227952
n×5
102784940
n÷2
10278494
n÷3
6852329.3333333
n÷3
5139247
n÷5
4111397.6
n2
422589755632144
n3
8.6871725354529E+21
n4
1.7858210156524E+29
n5
3.6711101188913E+36
2 √n
4533.9814732749
3 √n
273.93855513877
4 √n
67.334845906669
5 √n
29.012950461797
1 , 2 , 4 , 139 , 278 , 556 , 36973 , 73946 , 147892 , 5139247 , 10278494 , 20556988
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
-20556987
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 20556988 can be divided by 12 positive divisors.
The sum of these divisors (counting 20556988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110011010110010111100
3
Ternary
1102200101212221
4
Quaternary
1032122302330
5
Quinary
20230310423
6
Senary
2012335124
8
Octal
116326274
10
Decimal
20556988
12
Duodecimal
6a744a4
16
Hexadecimal
139acbc
20
Vigesimal
689c98
36
Base36
c8lvg
md5
3a45c434fa1a04af57d0d54c7aa15462
sha1
d272f1cace81e35bfe9491245a2754a278ded5f3
sha256
dd2067d43296579e4bfa281c9edfce3d26b97e3b8d521f831278186d2c074145
sha512
2b9fb1383f32322cabc1377cd9c667a710d6d22096d984e104db40f8b99936102bfab2b96b8805cfae9d0696f8cf2d37f28a9d789413d3a29772c3cef13a2df0
ripemd-160
c161a58b41955b5855c13370a3a7ebbc1efca76d
Diameter
41113976
Circumference
129163364.96147
Area
1.3276048717762E+15
Volume
3.6388743223795E+22
Surface area
5.310419487105E+15
Circumference
129163364.96147
Perimeter
82227952
Area
422589755632144
Diagonal
29071971.231141
Surface area
2535538533792864
Volume
8.6871725354529E+21
Space diagonal
35605747.666584
Perimeter
61670964
Area
1.8298673187825E+14
Altitude
17802873.833292
Surface area
1.8298673187825E+14
Volume
1.023793101526E+21
Height
9690657.077047