20512641 is an odd 8-digits composite number following 20512640
and preceding 20512642 . In scientific notation, it is written as 2.0512641 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13652480 positive integers (up to 20512641) that are relatively prime to 20512641.
20512641 has 8 divisors, whose sum is 27395424
The reverse of 20512641 is 14621502
Previous prime number is 641
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million five hundred twelve thousand six hundred forty-one
Scientific notation
2.0512641 × 10^7
Engineering notation
2.0512641 × 10^6
Prime Factorization
3 × 641 × 10667
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20512641
Product of the distinct prime numbers
The prime factorization of 20512641 is 3 × 641 × 10667.
Since it has a total of 3 prime factors.
2 , 3 , 61 , 70 , 422 , 681 , 3997 , 2284 , 34931 , 63642 , 367577 , 823664 , 4272338 , 4297009 , 59598026 , 11079851 , 220743621 , 229916231 , 7235590715 , 1370591271
n×2
41025282
n×3
61537923
n×4
82050564
n×5
102563205
n÷2
10256320.5
n÷3
6837547
n÷3
5128160.25
n÷5
4102528.2
n2
420768440794881
n3
8.6310719701551E+21
n4
1.7704608076896E+29
n5
3.6316826952706E+36
2 √n
4529.0883188562
3 √n
273.74142672427
4 √n
67.298501609295
5 √n
29.000421885104
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
-20512640
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 20512641 can be divided by 8 positive divisors.
The sum of these divisors (counting 20512641) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001111111110000001
3
Ternary
1102121011001110
4
Quaternary
1032033332001
5
Quinary
20222401031
6
Senary
2011353533
8
Octal
116177601
10
Decimal
20512641
12
Duodecimal
6a528a9
16
Hexadecimal
138ff81
20
Vigesimal
6841c1
36
Base36
c7nnl
md5
30293a860c3ec39be216d965f562c079
sha1
6731146512d750f8237a588ec3c1e0ddd84b4394
sha256
dac9acd4edf4c2d277749f7bf9d3497ab241b5f52fc97e691fddcd3f5e958d48
sha512
3e9cfaea5eb58156ea5e6bf921d5a6b98d0fc79b4632316a9f86d07ba40467d619d74ac8b9353c56256e44c5f14639b656e9acc13716458e5e96beaec10b3dfc
ripemd-160
85d1b3718719492f1bebe77536ae6eabb832fa4d
Diameter
41025282
Circumference
128884724.54265
Area
1.3218830424636E+15
Volume
3.6153749725392E+22
Surface area
5.2875321698545E+15
Circumference
128884724.54265
Perimeter
82050564
Area
420768440794881
Diagonal
29009255.10229
Surface area
2524610644769286
Volume
8.6310719701551E+21
Space diagonal
35528936.40942
Perimeter
61537923
Area
1.8219807941957E+14
Altitude
17764468.20471
Surface area
1.8219807941957E+14
Volume
1.017181586501E+21
Height
9669751.7007635