20808569 is an odd 8-digits composite number following 20808568
and preceding 20808570 . In scientific notation, it is written as 2.0808569 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 20644596 positive integers (up to 20808569) that are relatively prime to 20808569.
20808569 has 4 divisors, whose sum is 20972544
The reverse of 20808569 is 96580802
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million eight hundred eight thousand five hundred sixty-nine
Scientific notation
2.0808569 × 10^7
Engineering notation
2.0808569 × 10^6
Prime Factorization
127 × 163847
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20808569
Product of the distinct prime numbers
The prime factorization of 20808569 is 127 × 163847.
Since it has a total of 2 prime factors.
7 , 3 , 69 , 50 , 135 , 969 , 2710 , 3659 , 16183 , 83028 , 215429 , 166296 , 2605510 , 4103997 , 21305344 , 57488738 , 832257754 , 197127355 , 7364752033 , 7208072862
n×2
41617138
n×3
62425707
n×4
83234276
n×5
104042845
n÷2
10404284.5
n÷3
6936189.6666667
n÷3
5202142.25
n÷5
4161713.8
n2
432996543827761
n3
9.0100384590015E+21
n4
1.8748600696679E+29
n5
3.9013155125029E+36
2 √n
4561.641042432
3 √n
275.05153414371
4 √n
67.539921842063
5 √n
29.083618752264
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20808568
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20808569 can be divided by 4 positive divisors.
The sum of these divisors (counting 20808569) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111011000001101111001
3
Ternary
1110011011222202
4
Quaternary
1033120031321
5
Quinary
20311333234
6
Senary
2021555545
8
Octal
117301571
10
Decimal
20808569
12
Duodecimal
6b75bb5
16
Hexadecimal
13d8379
20
Vigesimal
6a1189
36
Base36
cdzzt
md5
8b6b67b1b9b56dc3be7d9035361d4263
sha1
1a0aaf747ab24918736c976f08e94213dd025e86
sha256
f6df68e091efa2d10c59ca0fc474b0a2729ef14797e10363fc4746a1c152097d
sha512
7d985d0b614e88befec3d01eed9283c74e3c6a82100394108e0572118873acff7a80a12b53706a886c597c184936357964994e28b09d603c865f99945c2f3d5a
ripemd-160
30861726cd7aae442d89ab7c59f927813a3da37a
Diameter
41617138
Circumference
130744095.00423
Area
1.3602987611191E+15
Volume
3.7741160841814E+22
Surface area
5.4411950444763E+15
Circumference
130744095.00423
Perimeter
83234276
Area
432996543827761
Diagonal
29427760.493376
Surface area
2597979262966566
Volume
9.0100384590015E+21
Space diagonal
36041498.740803
Perimeter
62425707
Area
1.8749300335285E+14
Altitude
18020749.370401
Surface area
1.8749300335285E+14
Volume
1.0618432155186E+21
Height
9809253.4977921