20990565 is an odd 8-digits composite number following 20990564
and preceding 20990566 . In scientific notation, it is written as 2.0990565 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors.
There are 10540800 positive integers (up to 20990565) that are relatively prime to 20990565.
20990565 has 32 divisors, whose sum is 31653888
The reverse of 20990565 is 56509902
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million nine hundred ninety thousand five hundred sixty-five
Scientific notation
2.0990565 × 10^7
Engineering notation
2.0990565 × 10^6
Prime Factorization
15 × 3 × 31 × 41 × 367
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20990565
Product of the distinct prime numbers
The prime factorization of 20990565 is 15 × 3 × 31 × 41 × 367.
Since it has a total of 5 prime factors.
7 , 8 , 23 , 92 , 681 , 33 , 8446 , 2555 , 33705 , 5502 , 391045 , 681185 , 305965 , 6144051 , 52160160 , 40436485 , 1652062 , 187743680 , 6304874561 , 5932950925
n×2
41981130
n×3
62971695
n×4
83962260
n×5
104952825
n÷2
10495282.5
n÷3
6996855
n÷3
5247641.25
n÷5
4198113
n2
440603819019225
n3
9.2485231023713E+21
n4
1.9413172533433E+29
n5
4.0749345991923E+36
2 √n
4581.5461364042
3 √n
275.8510932747
4 √n
67.687119427585
5 √n
29.13431595342
1 , 3 , 15 , 31 , 41 , 45 , 93 , 123 , 367 , 465 , 615 , 1101 , 1271 , 1395 , 1845 , 3813 , 5505 , 11377 , 15047 , 16515 , 19065 , 34131 , 45141 , 57195 , 170655 , 225705 , 466457 , 511965 , 677115 , 1399371 , 6996855 , 20990565
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20990564
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20990565 can be divided by 32 positive divisors.
The sum of these divisors (counting 20990565) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000000100101001100101
3
Ternary
1110111102122100
4
Quaternary
1100010221211
5
Quinary
20333144230
6
Senary
2025522313
8
Octal
120045145
10
Decimal
20990565
12
Duodecimal
7043399
16
Hexadecimal
1404a65
20
Vigesimal
6b3g85
36
Base36
chwf9
md5
97cd86a5165be06191c95fae123e5e86
sha1
b6bc8204d826d1628ec6fc830db9683ce7db7a9b
sha256
c7628073773a7580571d2b54eb536983b2704549f6014c2cd0901facdc4cb20a
sha512
b567f108c1065b0559f1ce3b6be35b26e97bde4fa0fd0d966d6ba2428cac67a88de98a51e08945547df2fc089c630a301e3c59def6f2d354d24f393745a634c8
ripemd-160
3cfd231e19b3b1133b9077d14321036ce99691c2
Diameter
41981130
Circumference
131887609.5974
Area
1.3841977209744E+15
Volume
3.8740122979953E+22
Surface area
5.5367908838976E+15
Circumference
131887609.5974
Perimeter
83962260
Area
440603819019225
Diagonal
29685141.704874
Surface area
2643622914115350
Volume
9.2485231023713E+21
Space diagonal
36356725.059577
Perimeter
62971695
Area
1.9078705013755E+14
Altitude
18178362.529789
Surface area
1.9078705013755E+14
Volume
1.0899489002745E+21
Height
9895047.234958