20921265 is an odd 8-digits composite number following 20921264
and preceding 20921266 . In scientific notation, it is written as 2.0921265 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 11157984 positive integers (up to 20921265) that are relatively prime to 20921265.
20921265 has 8 divisors, whose sum is 27895080
The reverse of 20921265 is 56212902
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million nine hundred twenty-one thousand two hundred sixty-five
Scientific notation
2.0921265 × 10^7
Engineering notation
2.0921265 × 10^6
Prime Factorization
9 × 5 × 464917
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921265
Product of the distinct prime numbers
The prime factorization of 20921265 is 9 × 5 × 464917.
Since it has a total of 3 prime factors.
6 , 1 , 29 , 69 , 601 , 422 , 9979 , 9817 , 45403 , 47377 , 529740 , 517903 , 4871119 , 3684684 , 36609008 , 66559842 , 109540899 , 28983385 , 3232549476 , 6619531182
n×2
41842530
n×3
62763795
n×4
83685060
n×5
104606325
n÷2
10460632.5
n÷3
6973755
n÷3
5230316.25
n÷5
4184253
n2
437699329200225
n3
9.1572236565201E+21
n4
1.9158070278233E+29
n5
4.0081106517953E+36
2 √n
4573.976934791
3 √n
275.54718598721
4 √n
67.63118315386
5 √n
29.115053206772
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
-20921264
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 20921265 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921265) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011101110110001
3
Ternary
1110100220120200
4
Quaternary
1033303232301
5
Quinary
20323440030
6
Senary
2024225413
8
Octal
117635661
10
Decimal
20921265
12
Duodecimal
700b269
16
Hexadecimal
13f3bb1
20
Vigesimal
6af335
36
Base36
cgey9
md5
4d79a43d9748e902887c5c27ee14f3c7
sha1
90447edcd0d2ee57134866f27e180403801ce07d
sha256
4fc83bcddf6eff12017ebfba5845697b47c2c931e35b025bd3a4de28e9fd7e0a
sha512
63eda3462b1515d84695c6300bd8347232a7afa835f62c151b50543384ee46410be4f40b0893d3f88193b4573bde7bfe4446c7de9be4cc3c4ee2bc665c32325e
ripemd-160
1fde07841d762c5d1b82df172ab7fb73c6a17255
Diameter
41842530
Circumference
131452184.85561
Area
1.3750729970966E+15
Volume
3.835768875547E+22
Surface area
5.5002919883864E+15
Circumference
131452184.85561
Perimeter
83685060
Area
437699329200225
Diagonal
29587136.705002
Surface area
2626195975201350
Volume
9.1572236565201E+21
Space diagonal
36236693.938612
Perimeter
62763795
Area
1.895293691534E+14
Altitude
18118346.969306
Surface area
1.895293691534E+14
Volume
1.0791891573945E+21
Height
9862378.9016672