21568409 is an odd 8-digits prime number following 21568408
and preceding 21568410 . In scientific notation, it is written as 2.1568409 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 21568408 positive integers (up to 21568409) that are relatively prime to 21568409.
21568409 has 2 divisors, whose sum is 21568410
The reverse of 21568409 is 90486512
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million five hundred sixty-eight thousand four hundred nine
Scientific notation
2.1568409 × 10^7
Engineering notation
2.1568409 × 10^6
Prime Factorization
21568409
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21568409
Product of the distinct prime numbers
The prime factorization of 21568409 is 21568409.
Since it has a total of 1 prime factors.
3 , 6 , 56 , 60 , 94 , 368 , 4361 , 353 , 5893 , 90826 , 954751 , 683704 , 5597682 , 1730238 , 77175027 , 75814062 , 952691659 , 543603919 , 2800105023 , 5622194874
n×2
43136818
n×3
64705227
n×4
86273636
n×5
107842045
n÷2
10784204.5
n÷3
7189469.6666667
n÷3
5392102.25
n÷5
4313681.8
n2
465196266791281
n3
1.0033543347427E+22
n4
2.1640756663654E+29
n5
4.6675669079118E+36
2 √n
4644.1801213993
3 √n
278.35949300144
4 √n
68.148221703866
5 √n
29.292984519488
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21568410
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10784205
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4644.1802290609
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999072718
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21568409 can be divided by 2 positive divisors.
The sum of these divisors (counting 21568409) is 21568410, the average is 10784205.
Base
System
Value
2
Binary
1010010010001101110011001
3
Ternary
1111120210021222
4
Quaternary
1102101232121
5
Quinary
21010142114
6
Senary
2050141425
8
Octal
122215631
10
Decimal
21568409
12
Duodecimal
7281875
16
Hexadecimal
1491b99
20
Vigesimal
6eg109
36
Base36
cuaah
md5
5baf3c1279ca1ad39435188495bb95de
sha1
126d738a980d07d687663b4958dcf71958e0ad0a
sha256
2fc9e17de85726f6b308917659888c06c9c858cc360cd8ed674e654bd970e499
sha512
d9c60516b71e71299f1fad731ba9bfca0b476c3508f437c6ae151e64948981f461d9ab1f38d9235bdc6ed80343be845c91c0060f0ef5bf54cff6fefc762c1c9f
ripemd-160
4f71827c3f82de33f01d9991074a8fac59d873ea
Diameter
43136818
Circumference
135518310.52804
Area
1.4614571742289E+15
Volume
4.2028408093004E+22
Surface area
5.8458286969155E+15
Circumference
135518310.52804
Perimeter
86273636
Area
465196266791281
Diagonal
30502336.52661
Surface area
2791177600747686
Volume
1.0033543347427E+22
Space diagonal
37357580.226426
Perimeter
64705227
Area
2.0143589239347E+14
Altitude
18678790.113213
Surface area
2.0143589239347E+14
Volume
1.1824644233825E+21
Height
10167445.50887