20986871 is an odd 8-digits prime number following 20986870
and preceding 20986872 . In scientific notation, it is written as 2.0986871 × 10^7.
The sum of its digits is 41. It has a total of 1 prime factors and 2 positive divisors.
There are 20986870 positive integers (up to 20986871) that are relatively prime to 20986871.
20986871 has 2 divisors, whose sum is 20986872
The reverse of 20986871 is 17868902
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million nine hundred eighty-six thousand eight hundred seventy-one
Scientific notation
2.0986871 × 10^7
Engineering notation
2.0986871 × 10^6
Prime Factorization
20986871
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20986871
Product of the distinct prime numbers
The prime factorization of 20986871 is 20986871.
Since it has a total of 1 prime factors.
7 , 2 , 50 , 19 , 945 , 234 , 7187 , 6910 , 37800 , 55766 , 493199 , 723967 , 483743 , 4000696 , 93937154 , 51694975 , 558157678 , 794135598 , 7798236630 , 9710280037
n×2
41973742
n×3
62960613
n×4
83947484
n×5
104934355
n÷2
10493435.5
n÷3
6995623.6666667
n÷3
5246717.75
n÷5
4197374.2
n2
440448754370641
n3
9.2436411900873E+21
n4
1.9399510522665E+29
n5
4.0713502480231E+36
2 √n
4581.1429796504
3 √n
275.83491054816
4 √n
67.684141271426
5 √n
29.133290447534
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20986872
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10493436
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4581.1430887935
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999047023
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20986871 can be divided by 2 positive divisors.
The sum of these divisors (counting 20986871) is 20986872, the average is 10493436.
Base
System
Value
2
Binary
1010000000011101111110111
3
Ternary
1110111020120112
4
Quaternary
1100003233313
5
Quinary
20333034441
6
Senary
2025453235
8
Octal
120035767
10
Decimal
20986871
12
Duodecimal
704121b
16
Hexadecimal
1403bf7
20
Vigesimal
6b373b
36
Base36
chtkn
md5
7e13950851e4fc9da1723210bb151aea
sha1
99b0c683416b049d19372b4b81f9355778693914
sha256
f5d9c10ee7c6d42fc2e8d500fa1f7720adda0361f50f516b12a5e658c9d4fc6e
sha512
de8298c147860553bb0bd969bf62e99bbc9f7c9faa6694abd2a0ff48e4fa5ad25dad046c082dcd81e829f6376b7571b466db8dee55c6e1d18ac7a7d3c69b504c
ripemd-160
ff15186ac73e740fdd30b5b4245aa66a845e8a2a
Diameter
41973742
Circumference
131864399.51087
Area
1.3837105710136E+15
Volume
3.8719673673598E+22
Surface area
5.5348422840543E+15
Circumference
131864399.51087
Perimeter
83947484
Area
440448754370641
Diagonal
29679917.599975
Surface area
2642692526223846
Volume
9.2436411900873E+21
Space diagonal
36350326.863894
Perimeter
62960613
Area
1.9071990517509E+14
Altitude
18175163.431947
Surface area
1.9071990517509E+14
Volume
1.0893735613943E+21
Height
9893305.8666582