21031580 is an even 8-digits composite number following 21031579
and preceding 21031581 . In scientific notation, it is written as 2.1031580 × 10^7.
The sum of its digits is 20. It has a total of 5 prime factors and 24 positive divisors.
There are 8274240 positive integers (up to 21031580) that are relatively prime to 21031580.
21031580 has 24 divisors, whose sum is 44892960
The reverse of 21031580 is 08513012
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million thirty-one thousand five hundred eighty
Scientific notation
2.1031580 × 10^7
Engineering notation
2.1031580 × 10^6
Prime Factorization
2 × 2 × 5 × 61 × 17239
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10515790
Product of the distinct prime numbers
The prime factorization of 21031580 is 2 × 2 × 5 × 61 × 17239.
Since it has a total of 5 prime factors.
2 , 9 , 79 , 8 , 619 , 757 , 4181 , 6340 , 81337 , 79291 , 558087 , 186277 , 5967612 , 6233930 , 35122790 , 86246229 , 34666225 , 78984265 , 5607274987 , 5658002274
n×2
42063160
n×3
63094740
n×4
84126320
n×5
105157900
n÷2
10515790
n÷3
7010526.6666667
n÷3
5257895
n÷5
4206316
n2
442327357296400
n3
9.3028432011678E+21
n4
1.9565349101282E+29
n5
4.1149020485153E+36
2 √n
4586.0200610115
3 √n
276.03064492048
4 √n
67.720159930493
5 √n
29.145692599137
1 , 2 , 4 , 5 , 10 , 20 , 61 , 122 , 244 , 305 , 610 , 1220 , 17239 , 34478 , 68956 , 86195 , 172390 , 344780 , 1051579 , 2103158 , 4206316 , 5257895 , 10515790 , 21031580
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031579
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031580 can be divided by 24 positive divisors.
The sum of these divisors (counting 21031580) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000001110101010011100
3
Ternary
1110120111220102
4
Quaternary
1100032222130
5
Quinary
20341002310
6
Senary
2030440232
8
Octal
120165234
10
Decimal
21031580
12
Duodecimal
7063078
16
Hexadecimal
140ea9c
20
Vigesimal
6b8ij0
36
Base36
cis2k
md5
79f393559c1c322f893d98096377c5b8
sha1
db0a6e65cf462300e297b07741ffa98364173659
sha256
d560026277b070f3e4eda7ab89bff9f2f2c0fe8895ca3058276d71a62b2ec15a
sha512
19146ef36827f4661b6485ded8bdf2aad50cb02c8963e722fc285c3322ff12b68354319bda11b30bbb9cbf2d3c35ac72600e73c2d07b4d89c5304ff35038e103
ripemd-160
2fc858e4d4a89f84536e931186bff867c2b58f63
Diameter
42063160
Circumference
132145314.44277
Area
1.3896123761642E+15
Volume
3.8967658477715E+22
Surface area
5.5584495046566E+15
Circumference
132145314.44277
Perimeter
84126320
Area
442327357296400
Diagonal
29743145.674135
Surface area
2653964143778400
Volume
9.3028432011678E+21
Space diagonal
36427765.123449
Perimeter
63094740
Area
1.9153336410376E+14
Altitude
18213882.561725
Surface area
1.9153336410376E+14
Volume
1.0963505853102E+21
Height
9914381.8913782