20681636 is an even 8-digits composite number following 20681635
and preceding 20681637 . In scientific notation, it is written as 2.0681636 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 10302120 positive integers (up to 20681636) that are relatively prime to 20681636.
20681636 has 12 divisors, whose sum is 36328320
The reverse of 20681636 is 63618602
Previous prime number is 271
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million six hundred eighty-one thousand six hundred thirty-six
Scientific notation
2.0681636 × 10^7
Engineering notation
2.0681636 × 10^6
Prime Factorization
2 × 2 × 271 × 19079
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10340818
Product of the distinct prime numbers
The prime factorization of 20681636 is 2 × 2 × 271 × 19079.
Since it has a total of 4 prime factors.
3 , 10 , 90 , 80 , 934 , 760 , 8333 , 2158 , 35779 , 30933 , 832198 , 255958 , 4197324 , 5442216 , 29752666 , 81809362 , 261567697 , 232495063 , 4256778620 , 3756273248
n×2
41363272
n×3
62044908
n×4
82726544
n×5
103408180
n÷2
10340818
n÷3
6893878.6666667
n÷3
5170409
n÷5
4136327.2
n2
427730067636496
n3
8.8461575651134E+21
n4
1.8295301076032E+29
n5
3.7837675736491E+36
2 √n
4547.7066747977
3 √n
274.49111841054
4 √n
67.436686416206
5 √n
29.048049638233
1 , 2 , 4 , 271 , 542 , 1084 , 19079 , 38158 , 76316 , 5170409 , 10340818 , 20681636
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
-20681635
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 20681636 can be divided by 12 positive divisors.
The sum of these divisors (counting 20681636) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110111001001110100100
3
Ternary
1102220201212112
4
Quaternary
1032321032210
5
Quinary
20243303021
6
Senary
2015140152
8
Octal
116711644
10
Decimal
20681636
12
Duodecimal
6b14658
16
Hexadecimal
13b93a4
20
Vigesimal
69541g
36
Base36
cba1w
md5
90ccf8181f824181791b1c97d196c37b
sha1
91725e8af4efaddc8e26a9ca995feaae8eaf9c0b
sha256
b0e1237a2b30193a347d379d9e87a9d97a8b4b4d800374ea3e1f53b86b2a199a
sha512
a36b56a23aa8ea079c65c41dd94fc311986cdd171e4c36eca26e920c14a075fb9dbe1e715960ac942ed176feb80a00916b26cb3f1b77b44ae7baef911b3d7a6d
ripemd-160
567b7d362ba07527253bdbe9533eb275d9fde150
Diameter
41363272
Circumference
129946551.44364
Area
1.3437536382063E+15
Volume
3.7054698158744E+22
Surface area
5.3750145528251E+15
Circumference
129946551.44364
Perimeter
82726544
Area
427730067636496
Diagonal
29248250.123264
Surface area
2566380405818976
Volume
8.8461575651134E+21
Space diagonal
35821644.335646
Perimeter
62044908
Area
1.8521255226782E+14
Altitude
17910822.167823
Surface area
1.8521255226782E+14
Volume
1.0425296669561E+21
Height
9749416.7077546