20686871 is an odd 8-digits prime number following 20686870
and preceding 20686872 . In scientific notation, it is written as 2.0686871 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 20686870 positive integers (up to 20686871) that are relatively prime to 20686871.
20686871 has 2 divisors, whose sum is 20686872
The reverse of 20686871 is 17868602
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million six hundred eighty-six thousand eight hundred seventy-one
Scientific notation
2.0686871 × 10^7
Engineering notation
2.0686871 × 10^6
Prime Factorization
20686871
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20686871
Product of the distinct prime numbers
The prime factorization of 20686871 is 20686871.
Since it has a total of 1 prime factors.
6 , 9 , 65 , 54 , 335 , 282 , 6508 , 3581 , 79053 , 80986 , 960001 , 324616 , 783003 , 3743108 , 65330478 , 638916 , 166606968 , 817510833 , 7046130569 , 5979466998
n×2
41373742
n×3
62060613
n×4
82747484
n×5
103434355
n÷2
10343435.5
n÷3
6895623.6666667
n÷3
5171717.75
n÷5
4137374.2
n2
427946631770641
n3
8.8528767663238E+21
n4
1.8313831964384E+29
n5
3.7885587936288E+36
2 √n
4548.282203206
3 √n
274.51427647178
4 √n
67.440953457124
5 √n
29.04952003589
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20686872
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10343436
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4548.2823131376
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999033203
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20686871 can be divided by 2 positive divisors.
The sum of these divisors (counting 20686871) is 20686872, the average is 10343436.
Base
System
Value
2
Binary
1001110111010100000010111
3
Ternary
1102221000001102
4
Quaternary
1032322200113
5
Quinary
20243434441
6
Senary
2015220315
8
Octal
116724027
10
Decimal
20686871
12
Duodecimal
6b1769b
16
Hexadecimal
13ba817
20
Vigesimal
695h3b
36
Base36
cbe3b
md5
0fe8420fdaa027f97f30cb610b291bef
sha1
e1572201aa5186853259817b449840399e52dd61
sha256
b0c728d0e51e545165da3237c6493d7dd9ab6ef029cdf5d7032da2a6b49ec656
sha512
36077455338a62278bb7e6b116bd08650a76cad22e947e3a8693e05eac21524a9f088f562242a06a696f5b7a783986be6f898bc73fe86cf3a1dfbb2b0c0c22d2
ripemd-160
c2253135841ab77d776dc74bbd509bd6a054c1c1
Diameter
41373742
Circumference
129979443.91872
Area
1.3444339944991E+15
Volume
3.7082843482958E+22
Surface area
5.3777359779966E+15
Circumference
129979443.91872
Perimeter
82747484
Area
427946631770641
Diagonal
29255653.531263
Surface area
2567679790623846
Volume
8.8528767663238E+21
Space diagonal
35830711.621623
Perimeter
62060613
Area
1.8530632728868E+14
Altitude
17915355.810812
Surface area
1.8530632728868E+14
Volume
1.0433215324127E+21
Height
9751884.5104209