20213891 is an odd 8-digits composite number following 20213890
and preceding 20213892 . In scientific notation, it is written as 2.0213891 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 18531720 positive integers (up to 20213891) that are relatively prime to 20213891.
20213891 has 8 divisors, whose sum is 21964800
The reverse of 20213891 is 19831202
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million two hundred thirteen thousand eight hundred ninety-one
Scientific notation
2.0213891 × 10^7
Engineering notation
2.0213891 × 10^6
Prime Factorization
31 × 19 × 34319
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20213891
Product of the distinct prime numbers
The prime factorization of 20213891 is 31 × 19 × 34319.
Since it has a total of 3 prime factors.
2 , 2 , 35 , 35 , 376 , 333 , 704 , 2904 , 95675 , 13553 , 380053 , 458021 , 5631019 , 5629396 , 66833873 , 25946237 , 767360111 , 944592919 , 2788354068 , 9123436168
n×2
40427782
n×3
60641673
n×4
80855564
n×5
101069455
n÷2
10106945.5
n÷3
6737963.6666667
n÷3
5053472.75
n÷5
4042778.2
n2
408601389359881
n3
8.2594239469692E+21
n4
1.6695509538683E+29
n5
3.3748121000439E+36
2 √n
4495.986098733
3 √n
272.40598164949
4 √n
67.052114796872
5 √n
28.915451894374
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20213890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20213891 can be divided by 8 positive divisors.
The sum of these divisors (counting 20213891) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000111000010000011
3
Ternary
1102000222020122
4
Quaternary
1031013002003
5
Quinary
20133321031
6
Senary
2001130455
8
Octal
115070203
10
Decimal
20213891
12
Duodecimal
6929a2b
16
Hexadecimal
1347083
20
Vigesimal
666eeb
36
Base36
c194z
md5
f9ed29b237f671e9b35902541a89dd7e
sha1
028f41fb83fff5f11797918e3b0542df52c14586
sha256
0528be12f5550f0cbcdee7f8a5667493884468f9bf4ba86905bdec2141dbdd03
sha512
5bc2fa978ba8c3413f3d94a4239462d7db331c25626dfda010ed5f60602d1c404e067e19bc29f8cf2cc1bb730a2f9ff7a67246b0d99d92647252515e3aca0f78
ripemd-160
54ed9efab192845b03a7c491e75647ee5b4480db
Diameter
40427782
Circumference
127007622.93213
Area
1.2836591230596E+15
Volume
3.4596994126243E+22
Surface area
5.1346364922383E+15
Circumference
127007622.93213
Perimeter
80855564
Area
408601389359881
Diagonal
28586758.800531
Surface area
2451608336159286
Volume
8.2594239469692E+21
Space diagonal
35011486.230659
Perimeter
60641673
Area
1.7692959160364E+14
Altitude
17505743.11533
Surface area
1.7692959160364E+14
Volume
9.7338244693275E+20
Height
9528919.6001771