20647686 is an even 8-digits composite number following 20647685
and preceding 20647687 . In scientific notation, it is written as 2.0647686 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 6874464 positive integers (up to 20647686) that are relatively prime to 20647686.
20647686 has 16 divisors, whose sum is 41343984
The reverse of 20647686 is 68674602
Previous prime number is 1213
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million six hundred forty-seven thousand six hundred eighty-six
Scientific notation
2.0647686 × 10^7
Engineering notation
2.0647686 × 10^6
Prime Factorization
2 × 3 × 1213 × 2837
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20647686
Product of the distinct prime numbers
The prime factorization of 20647686 is 2 × 3 × 1213 × 2837.
Since it has a total of 4 prime factors.
6 , 5 , 61 , 16 , 399 , 877 , 9473 , 3608 , 41462 , 8438 , 67804 , 822251 , 7268402 , 1585759 , 9838972 , 30692893 , 264049406 , 418593487 , 1917279430 , 4621104734
n×2
41295372
n×3
61943058
n×4
82590744
n×5
103238430
n÷2
10323843
n÷3
6882562
n÷3
5161921.5
n÷5
4129537.2
n2
426326937154596
n3
8.8026647317098E+21
n4
1.8175465734362E+29
n5
3.7528130938686E+36
2 √n
4543.9724911139
3 √n
274.34083891747
4 √n
67.408994141093
5 √n
29.038506587855
1 , 2 , 3 , 6 , 1213 , 2426 , 2837 , 3639 , 5674 , 7278 , 8511 , 17022 , 3441281 , 6882562 , 10323843 , 20647686
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
-20647685
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 20647686 can be divided by 16 positive divisors.
The sum of these divisors (counting 20647686) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110110000111100000110
3
Ternary
1102212000022010
4
Quaternary
1032300330012
5
Quinary
20241211221
6
Senary
2014315050
8
Octal
116607406
10
Decimal
20647686
12
Duodecimal
6ab8a86
16
Hexadecimal
13b0f06
20
Vigesimal
690j46
36
Base36
cajuu
md5
384e055bdb4e6c82a83030f762136108
sha1
7d96f72853e75f3a38e0ede81018a6cf2355a326
sha256
e456c6c2900cc3b6cc4b0866820e7cb87ff77964dd0d4a2160b56961da75fec4
sha512
355cd19e40a26f243c2cb08baf6a58ca415a68a276579924b0220c82b550fa0d7e5426629066ef39ee65a0d2483db585705edea6ccdb9d070ab65ca80555e7ca
ripemd-160
8221a6b1043c10230f1ffb26730e5cde54027340
Diameter
41295372
Circumference
129733237.30246
Area
1.3393455737923E+15
Volume
3.6872515804205E+22
Surface area
5.3573822951693E+15
Circumference
129733237.30246
Perimeter
82590744
Area
426326937154596
Diagonal
29200237.572821
Surface area
2557961622927576
Volume
8.8026647317098E+21
Space diagonal
35762841.210729
Perimeter
61943058
Area
1.8460497894675E+14
Altitude
17881420.605364
Surface area
1.8460497894675E+14
Volume
1.0374039873839E+21
Height
9733412.5242737