20512961 is an odd 8-digits composite number following 20512960
and preceding 20512962 . In scientific notation, it is written as 2.0512961 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 17250480 positive integers (up to 20512961) that are relatively prime to 20512961.
20512961 has 8 divisors, whose sum is 23886144
The reverse of 20512961 is 16921502
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million five hundred twelve thousand nine hundred sixty-one
Scientific notation
2.0512961 × 10^7
Engineering notation
2.0512961 × 10^6
Prime Factorization
7 × 53 × 55291
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20512961
Product of the distinct prime numbers
The prime factorization of 20512961 is 7 × 53 × 55291.
Since it has a total of 3 prime factors.
8 , 7 , 19 , 57 , 279 , 831 , 7483 , 4420 , 36264 , 79419 , 840699 , 397387 , 2069538 , 6530072 , 82884168 , 570654 , 672894042 , 184019229 , 7489885676 , 4332849357
n×2
41025922
n×3
61538883
n×4
82051844
n×5
102564805
n÷2
10256480.5
n÷3
6837653.6666667
n÷3
5128240.25
n÷5
4102592.2
n2
420781568987521
n3
8.6314759141598E+21
n4
1.770571287996E+29
n5
3.6319659778382E+36
2 √n
4529.1236459165
3 √n
273.74285018474
4 √n
67.298764074212
5 √n
29.000512366647
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
-20512960
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 20512961 can be divided by 8 positive divisors.
The sum of these divisors (counting 20512961) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110010000000011000001
3
Ternary
1102121011111022
4
Quaternary
1032100003001
5
Quinary
20222403321
6
Senary
2011355225
8
Octal
116200301
10
Decimal
20512961
12
Duodecimal
6a52b15
16
Hexadecimal
13900c1
20
Vigesimal
684281
36
Base36
c7nwh
md5
704b784ec505f56cc1272ada4a9c7493
sha1
db2a7effaac72cf11fab8999eee9e4a7f9afcba6
sha256
0f2e5197038e9d386b69570d90dcf8e252b234ac60ee141c3a32e6059d1354bf
sha512
a4675cfaffcf93048a16e305badc22852876b4242b7110299253cd45b42cfc853c116f70b0ee2c40850cd62a6904385d59f8d6167e0f358e7858152c517d745f
ripemd-160
08cf407442da1c900d2f475e085be17f7d824884
Diameter
41025922
Circumference
128886735.16195
Area
1.3219242858972E+15
Volume
3.6155441762082E+22
Surface area
5.2876971435887E+15
Circumference
128886735.16195
Perimeter
82051844
Area
420781568987521
Diagonal
29009707.65063
Surface area
2524689413925126
Volume
8.6314759141598E+21
Space diagonal
35529490.665679
Perimeter
61538883
Area
1.8220376409373E+14
Altitude
17764745.332839
Surface area
1.8220376409373E+14
Volume
1.0172291917585E+21
Height
9669902.5502101