20551381 is an odd 8-digits composite number following 20551380
and preceding 20551382 . In scientific notation, it is written as 2.0551381 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20303692 positive integers (up to 20551381) that are relatively prime to 20551381.
20551381 has 4 divisors, whose sum is 20799072
The reverse of 20551381 is 18315502
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million five hundred fifty-one thousand three hundred eighty-one
Scientific notation
2.0551381 × 10^7
Engineering notation
2.0551381 × 10^6
Prime Factorization
83 × 247607
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20551381
Product of the distinct prime numbers
The prime factorization of 20551381 is 83 × 247607.
Since it has a total of 2 prime factors.
10 , 10 , 19 , 60 , 8 , 438 , 1108 , 7093 , 7596 , 75275 , 939720 , 617076 , 2768687 , 3115368 , 64352170 , 24235418 , 778300214 , 402286112 , 1769268993 , 4556270872
n×2
41102762
n×3
61654143
n×4
82205524
n×5
102756905
n÷2
10275690.5
n÷3
6850460.3333333
n÷3
5137845.25
n÷5
4110276.2
n2
422359261007161
n3
8.6800660918366E+21
n4
1.7838734535852E+29
n5
3.6661063000414E+36
2 √n
4533.3631003925
3 √n
273.9136469316
4 √n
67.330253975404
5 √n
29.011367609636
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
-20551380
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 20551381 can be divided by 4 positive divisors.
The sum of these divisors (counting 20551381) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110011001011011010101
3
Ternary
1102200010012021
4
Quaternary
1032121123111
5
Quinary
20230121011
6
Senary
2012253141
8
Octal
116313325
10
Decimal
20551381
12
Duodecimal
6a711b1
16
Hexadecimal
13996d5
20
Vigesimal
688i91
36
Base36
c8hjp
md5
276e7c666f7e886c3e326231eee2c50e
sha1
25fe32167b9f0a1afb8443b8bcd2a1ca2c2a65d1
sha256
df97d55f9b46b3a2408626bcfabdd72666f83862ef50a82fd69479eef3a7ea24
sha512
0df6b0a7814e9b8b1ba70e76b5e90b0e25cb2ae27e7e998c9d0e53c23404c13ba5c9cb9170b5f0f2f4e29e45d416463ccbe1295d8c0ee78a7feebb8afe533de6
ripemd-160
9c21fc58856729f032687bcc9c2bc140a9436511
Diameter
41102762
Circumference
129128135.14145
Area
1.3268807515557E+15
Volume
3.6358975822384E+22
Surface area
5.3075230062228E+15
Circumference
129128135.14145
Perimeter
82205524
Area
422359261007161
Diagonal
29064041.735697
Surface area
2534155566042966
Volume
8.6800660918366E+21
Space diagonal
35596036.057706
Perimeter
61654143
Area
1.8288692477791E+14
Altitude
17798018.028853
Surface area
1.8288692477791E+14
Volume
1.0229555991142E+21
Height
9688013.9118989