20212865 is an odd 8-digits composite number following 20212864
and preceding 20212866 . In scientific notation, it is written as 2.0212865 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 15242112 positive integers (up to 20212865) that are relatively prime to 20212865.
20212865 has 16 divisors, whose sum is 25660800
The reverse of 20212865 is 56821202
Previous prime number is 263
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million two hundred twelve thousand eight hundred sixty-five
Scientific notation
2.0212865 × 10^7
Engineering notation
2.0212865 × 10^6
Prime Factorization
5 × 19 × 263 × 809
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20212865
Product of the distinct prime numbers
The prime factorization of 20212865 is 5 × 19 × 263 × 809.
Since it has a total of 4 prime factors.
1 , 2 , 99 , 53 , 382 , 58 , 7574 , 3603 , 62242 , 87253 , 876596 , 76194 , 4973520 , 3631021 , 57568438 , 2067090 , 722054839 , 434003768 , 5141795881 , 8212062353
n×2
40425730
n×3
60638595
n×4
80851460
n×5
101064325
n÷2
10106432.5
n÷3
6737621.6666667
n÷3
5053216.25
n÷5
4042573
n2
408559911508225
n3
8.2581663357277E+21
n4
1.6692120129161E+29
n5
3.3739557073451E+36
2 √n
4495.8719955088
3 √n
272.40137271883
4 √n
67.051263936698
5 √n
28.915158355084
1 , 5 , 19 , 95 , 263 , 809 , 1315 , 4045 , 4997 , 15371 , 24985 , 76855 , 212767 , 1063835 , 4042573 , 20212865
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
-20212864
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 20212865 can be divided by 16 positive divisors.
The sum of these divisors (counting 20212865) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000110110010000001
3
Ternary
1102000220211122
4
Quaternary
1031012302001
5
Quinary
20133302430
6
Senary
2001122025
8
Octal
115066201
10
Decimal
20212865
12
Duodecimal
6929315
16
Hexadecimal
1346c81
20
Vigesimal
666c35
36
Base36
c18ch
md5
9420c0c7984d78c9f31b6759e3417517
sha1
bad0efe19f50b8f033e41408ccc0564986e2a01d
sha256
97bdbc1b5e6580b710b8ae8367f96fba8ea067f868409981b57402bf9155df2b
sha512
6e6897d5cb812ec4e291511dea602ba1c718201a4a923cd8ce4821c6407a2f3d25bcc186b1a475d1451cf78fcc87dfc2ca84d1a004c31bc260b8f982dbcb1720
ripemd-160
05d4e97f3e552e7a5034cccff54beee04f13fce2
Diameter
40425730
Circumference
127001176.384
Area
1.2835288165455E+15
Volume
3.4591726256593E+22
Surface area
5.1341152661821E+15
Circumference
127001176.384
Perimeter
80851460
Area
408559911508225
Diagonal
28585307.817416
Surface area
2451359469049350
Volume
8.2581663357277E+21
Space diagonal
35009709.146531
Perimeter
60638595
Area
1.7691163116702E+14
Altitude
17504854.573265
Surface area
1.7691163116702E+14
Volume
9.7323423602659E+20
Height
9528435.9391388