21087569 is an odd 8-digits prime number following 21087568
and preceding 21087570 . In scientific notation, it is written as 2.1087569 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 21087568 positive integers (up to 21087569) that are relatively prime to 21087569.
21087569 has 2 divisors, whose sum is 21087570
The reverse of 21087569 is 96578012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million eighty-seven thousand five hundred sixty-nine
Scientific notation
2.1087569 × 10^7
Engineering notation
2.1087569 × 10^6
Prime Factorization
21087569
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21087569
Product of the distinct prime numbers
The prime factorization of 21087569 is 21087569.
Since it has a total of 1 prime factors.
4 , 6 , 36 , 47 , 502 , 431 , 1857 , 8715 , 37519 , 58116 , 393193 , 43332 , 667366 , 9118955 , 1346903 , 84250877 , 385058985 , 261246194 , 3764875312 , 4502841380
n×2
42175138
n×3
63262707
n×4
84350276
n×5
105437845
n÷2
10543784.5
n÷3
7029189.6666667
n÷3
5271892.25
n÷5
4217513.8
n2
444685566329761
n3
9.3773375632829E+21
n4
1.9774525290202E+29
n5
4.1699666649938E+36
2 √n
4592.120316368
3 √n
276.27537191126
4 √n
67.765185134906
5 √n
29.161194081013
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21087570
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10543785
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4592.1204252502
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999051574
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21087569 can be divided by 2 positive divisors.
The sum of these divisors (counting 21087569) is 21087570, the average is 10543785.
Base
System
Value
2
Binary
1010000011100010101010001
3
Ternary
1110200100201002
4
Quaternary
1100130111101
5
Quinary
20344300234
6
Senary
2031551345
8
Octal
120342521
10
Decimal
21087569
12
Duodecimal
708b555
16
Hexadecimal
141c551
20
Vigesimal
6bfii9
36
Base36
cjz9t
md5
ab2b71f7079661a09e68e9159a78c2bd
sha1
e1e1ae339015ba80604b22eb008807718f42539f
sha256
da35baa6eeff03219e04d22cb7ee9044c091f7206150eb6dea8634b248fe1863
sha512
4c4ea631b151d7108dd5cd844fc87fa317769295e1c395fe8fc2a1ddd4be93102ca6b8061ee7ed8e6020e7517964999fd9a24db1361c6904e2985590339d34f8
ripemd-160
000dcdf9bbc0e47617e6666ef301595519e57092
Diameter
42175138
Circumference
132497103.70494
Area
1.397020908339E+15
Volume
3.9279699732055E+22
Surface area
5.588083633356E+15
Circumference
132497103.70494
Perimeter
84350276
Area
444685566329761
Diagonal
29822326.077278
Surface area
2668113397978566
Volume
9.3773375632829E+21
Space diagonal
36524740.916114
Perimeter
63262707
Area
1.9255449856892E+14
Altitude
18262370.458057
Surface area
1.9255449856892E+14
Volume
1.1051298300788E+21
Height
9940775.3590928