20587921 is an odd 8-digits composite number following 20587920
and preceding 20587922 . In scientific notation, it is written as 2.0587921 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 19692772 positive integers (up to 20587921) that are relatively prime to 20587921.
20587921 has 4 divisors, whose sum is 21483072
The reverse of 20587921 is 12978502
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million five hundred eighty-seven thousand nine hundred twenty-one
Scientific notation
2.0587921 × 10^7
Engineering notation
2.0587921 × 10^6
Prime Factorization
23 × 895127
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20587921
Product of the distinct prime numbers
The prime factorization of 20587921 is 23 × 895127.
Since it has a total of 2 prime factors.
5 , 3 , 56 , 13 , 757 , 947 , 7879 , 337 , 80615 , 30187 , 552114 , 507440 , 5349036 , 1139212 , 99873384 , 69240293 , 164962696 , 333039190 , 6013191264 , 2503383561
n×2
41175842
n×3
61763763
n×4
82351684
n×5
102939605
n÷2
10293960.5
n÷3
6862640.3333333
n÷3
5146980.25
n÷5
4117584.2
n2
423862491102241
n3
8.7264474816761E+21
n4
1.796594113634E+29
n5
3.6988137680561E+36
2 √n
4537.391431208
3 √n
274.07588872424
4 √n
67.360162048558
5 √n
29.021676622519
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
-20587920
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 20587921 can be divided by 4 positive divisors.
The sum of these divisors (counting 20587921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110100010010110010001
3
Ternary
1102201222022121
4
Quaternary
1032202112101
5
Quinary
20232303141
6
Senary
2013134241
8
Octal
116422621
10
Decimal
20587921
12
Duodecimal
6a8a381
16
Hexadecimal
13a2591
20
Vigesimal
68d9g1
36
Base36
c99qp
md5
c0c965bfd131cad6cf3d5a8ea430693b
sha1
92a23e0abf39db5e797e91ff3efd88a5bddc3bac
sha256
500e72c39a30e481ff9ae92768d50cf78e802c3ad9047b0456dfdd70b7f95a46
sha512
062db99469513009bc2f6bdfc69ae51909f9206ce29f744e784fd97a36286b9e853f8c078c417bee1dad0a8577d7df678100b67b1c01df9c88aff33553543165
ripemd-160
1b8af07addd4a195bc93f94ac939c04690d07b9b
Diameter
41175842
Circumference
129357722.73257
Area
1.3316032881791E+15
Volume
3.6553257733828E+22
Surface area
5.3264131527163E+15
Circumference
129357722.73257
Perimeter
82351684
Area
423862491102241
Diagonal
29115717.099266
Surface area
2543174946613446
Volume
8.7264474816761E+21
Space diagonal
35659325.194214
Perimeter
61763763
Area
1.8353784250295E+14
Altitude
17829662.597107
Surface area
1.8353784250295E+14
Volume
1.0284216983269E+21
Height
9705239.0330886