20551831 is an odd 8-digits composite number following 20551830
and preceding 20551832 . In scientific notation, it is written as 2.0551831 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20114512 positive integers (up to 20551831) that are relatively prime to 20551831.
20551831 has 4 divisors, whose sum is 20989152
The reverse of 20551831 is 13815502
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million five hundred fifty-one thousand eight hundred thirty-one
Scientific notation
2.0551831 × 10^7
Engineering notation
2.0551831 × 10^6
Prime Factorization
47 × 437273
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20551831
Product of the distinct prime numbers
The prime factorization of 20551831 is 47 × 437273.
Since it has a total of 2 prime factors.
4 , 7 , 72 , 98 , 474 , 757 , 6424 , 6102 , 87654 , 86153 , 184537 , 449562 , 1706492 , 2042394 , 48088625 , 87630660 , 879726550 , 789399281 , 951648912 , 8487197105
n×2
41103662
n×3
61655493
n×4
82207324
n×5
102759155
n÷2
10275915.5
n÷3
6850610.3333333
n÷3
5137957.75
n÷5
4110366.2
n2
422377757452561
n3
8.680636289324E+21
n4
1.7840296999065E+29
n5
3.666507689146E+36
2 √n
4533.4127321478
3 √n
273.91564615234
4 √n
67.33062254389
5 √n
29.01149465707
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20551830
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20551831 can be divided by 4 positive divisors.
The sum of these divisors (counting 20551831) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110011001100010010111
3
Ternary
1102200010210221
4
Quaternary
1032121202113
5
Quinary
20230124311
6
Senary
2012255211
8
Octal
116314227
10
Decimal
20551831
12
Duodecimal
6a71507
16
Hexadecimal
1399897
20
Vigesimal
688jbb
36
Base36
c8hw7
md5
4590dec232eccc5d98a50d7d7cb2d485
sha1
dd85c1612c10c248bdfe3a26d5259148f1049187
sha256
d1d33f20b7e37312ebf50aa46474ac6513f8d2fdcb113562f80a0f0a070dc8a5
sha512
0bc4490da30e5ee7808fa4662e78415deea3545bba20c7d4d3612c0f3cc71f738d66f0b919d777c4ebbe6f2d0b481898d816ed1e696db5fc36366da24d19e036
ripemd-160
428a54c13b4aa87021abcd431405ff544083f47f
Diameter
41103662
Circumference
129130962.57484
Area
1.3269388598527E+15
Volume
3.6361364260034E+22
Surface area
5.3077554394108E+15
Circumference
129130962.57484
Perimeter
82207324
Area
422377757452561
Diagonal
29064678.1318
Surface area
2534266544715366
Volume
8.680636289324E+21
Space diagonal
35596815.480569
Perimeter
61655493
Area
1.8289493397371E+14
Altitude
17798407.740285
Surface area
1.8289493397371E+14
Volume
1.0230227975325E+21
Height
9688226.0439333