21568321 is an odd 8-digits composite number following 21568320
and preceding 21568322 . In scientific notation, it is written as 2.1568321 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 21410752 positive integers (up to 21568321) that are relatively prime to 21568321.
21568321 has 4 divisors, whose sum is 21725892
The reverse of 21568321 is 12386512
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred sixty-eight thousand three hundred twenty-one
Scientific notation
2.1568321 × 10^7
Engineering notation
2.1568321 × 10^6
Prime Factorization
137 × 157433
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21568321
Product of the distinct prime numbers
The prime factorization of 21568321 is 137 × 157433.
Since it has a total of 2 prime factors.
9 , 8 , 47 , 63 , 68 , 304 , 274 , 6431 , 9253 , 46425 , 64590 , 352728 , 6137699 , 3962404 , 72642165 , 72962494 , 205348061 , 336219618 , 422622589 , 3303385506
n×2
43136642
n×3
64704963
n×4
86273284
n×5
107841605
n÷2
10784160.5
n÷3
7189440.3333333
n÷3
5392080.25
n÷5
4313664.2
n2
465192470759041
n3
1.0033420536114E+22
n4
2.164040348509E+29
n5
4.6674716893594E+36
2 √n
4644.1706471662
3 √n
278.35911442818
4 √n
68.148152191869
5 √n
29.292960616132
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
-21568320
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 21568321 can be divided by 4 positive divisors.
The sum of these divisors (counting 21568321) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010010001101101000001
3
Ternary
1111120210011201
4
Quaternary
1102101231001
5
Quinary
21010141241
6
Senary
2050141201
8
Octal
122215501
10
Decimal
21568321
12
Duodecimal
7281801
16
Hexadecimal
1491b41
20
Vigesimal
6eg0g1
36
Base36
cua81
md5
50e03673904cf01fb7b1b25b47bc2b11
sha1
d64c9349898bb3f2257f3c781d55511c93338d2d
sha256
8a06cd33670713fea4caecb3bbd722c73495f125caa1ab7f769a53f192e90f8c
sha512
7d239ff473c7542f20c1c8b232408ffae390d7deb9a4f0f566062940ddf30c6d8802a647f072dccced4781aa9a442a06841de6bda3e25a4435b8ff1592fc4c79
ripemd-160
6c9f10ad33d5b7541c755a9ce58f621473f0f5c3
Diameter
43136642
Circumference
135517757.60773
Area
1.4614452486419E+15
Volume
4.2027893662177E+22
Surface area
5.8457809945676E+15
Circumference
135517757.60773
Perimeter
86273284
Area
465192470759041
Diagonal
30502212.075816
Surface area
2791154824554246
Volume
1.0033420536114E+22
Space diagonal
37357427.805955
Perimeter
64704963
Area
2.0143424866329E+14
Altitude
18678713.902977
Surface area
2.0143424866329E+14
Volume
1.1824499499304E+21
Height
10167404.025272