20525981 is an odd 8-digits composite number following 20525980
and preceding 20525982 . In scientific notation, it is written as 2.0525981 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 17001600 positive integers (up to 20525981) that are relatively prime to 20525981.
20525981 has 16 divisors, whose sum is 24261120
The reverse of 20525981 is 18952502
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million five hundred twenty-five thousand nine hundred eighty-one
Scientific notation
2.0525981 × 10^7
Engineering notation
2.0525981 × 10^6
Prime Factorization
7 × 47 × 89 × 701
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20525981
Product of the distinct prime numbers
The prime factorization of 20525981 is 7 × 47 × 89 × 701.
Since it has a total of 4 prime factors.
9 , 4 , 7 , 2 , 1000 , 242 , 2319 , 9804 , 40732 , 4894 , 32092 , 955494 , 3978887 , 8094519 , 37442914 , 81485974 , 609504469 , 684142295 , 713674275 , 2003763930
n×2
41051962
n×3
61577943
n×4
82103924
n×5
102629905
n÷2
10262990.5
n÷3
6841993.6666667
n÷3
5131495.25
n÷5
4105196.2
n2
421315896012361
n3
8.6479220765477E+21
n4
1.775070842327E+29
n5
3.6435070383258E+36
2 √n
4530.5607820666
3 √n
273.80075468228
4 √n
67.309440512209
5 √n
29.004192877156
1 , 7 , 47 , 89 , 329 , 623 , 701 , 4183 , 4907 , 29281 , 32947 , 62389 , 230629 , 436723 , 2932283 , 20525981
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20525980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20525981 can be divided by 16 positive divisors.
The sum of these divisors (counting 20525981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110010011001110011101
3
Ternary
1102121211100112
4
Quaternary
1032103032131
5
Quinary
20223312411
6
Senary
2011535405
8
Octal
116231635
10
Decimal
20525981
12
Duodecimal
6a5a565
16
Hexadecimal
139339d
20
Vigesimal
685ej1
36
Base36
c7xy5
md5
3cf88487d8e83e6b783811b78bf7e069
sha1
6d72234dbd8c5262b735da1337ba83360b131568
sha256
46ee5098140e66b38ce9b7de91d786f61536840a581e58662d17b5c464366cda
sha512
53fc01a3239e996c3430c931fb6baf5006499858df8c1c6a3475692dbcfdfe37eb4d4efdce4c78fefdfd6bd2f32dd13549e8ebe75a2a72424a7fcb0a78c43db1
ripemd-160
09a42a4547ace4c6164a36d08f5a889a6f16ef13
Diameter
41051962
Circumference
128968542.23465
Area
1.323602923753E+15
Volume
3.6224331285999E+22
Surface area
5.2944116950121E+15
Circumference
128968542.23465
Perimeter
82103924
Area
421315896012361
Diagonal
29028120.711212
Surface area
2527895376074166
Volume
8.6479220765477E+21
Space diagonal
35552041.967193
Perimeter
61577943
Area
1.8243513448245E+14
Altitude
17776020.983597
Surface area
1.8243513448245E+14
Volume
1.0191673905833E+21
Height
9676040.2370708