21604865 is an odd 8-digits composite number following 21604864
and preceding 21604866 . In scientific notation, it is written as 2.1604865 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 17267200 positive integers (up to 21604865) that are relatively prime to 21604865.
21604865 has 8 divisors, whose sum is 25950888
The reverse of 21604865 is 56840612
Previous prime number is 1901
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million six hundred four thousand eight hundred sixty-five
Scientific notation
2.1604865 × 10^7
Engineering notation
2.1604865 × 10^6
Prime Factorization
5 × 1901 × 2273
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21604865
Product of the distinct prime numbers
The prime factorization of 21604865 is 5 × 1901 × 2273.
Since it has a total of 3 prime factors.
9 , 3 , 90 , 51 , 352 , 320 , 5425 , 6805 , 78171 , 44409 , 581542 , 934152 , 2580370 , 9055473 , 88781024 , 93179075 , 885474041 , 928807915 , 6610978787 , 3008200407
n×2
43209730
n×3
64814595
n×4
86419460
n×5
108024325
n÷2
10802432.5
n÷3
7201621.6666667
n÷3
5401216.25
n÷5
4320973
n2
466770191668225
n3
1.0084506977016E+22
n4
2.1787441182999E+29
n5
4.7071472545414E+36
2 √n
4648.1033766473
3 √n
278.51623708579
4 √n
68.177000349438
5 √n
29.302880323713
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21604864
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21604865 can be divided by 8 positive divisors.
The sum of these divisors (counting 21604865) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010011010101000000001
3
Ternary
1111122122022012
4
Quaternary
1102122220001
5
Quinary
21012323430
6
Senary
2051022305
8
Octal
122325001
10
Decimal
21604865
12
Duodecimal
729a995
16
Hexadecimal
149aa01
20
Vigesimal
6f0c35
36
Base36
cv2f5
md5
a24ef584ac11176480371c9cf3edc6d8
sha1
a6f314e1de8a04568aef8a7b4058686f257b5c56
sha256
038e264adf2674fb179a355693a430fcb8a67923195e6b7ab719748acbdb18f2
sha512
d761499da858db49f603b7a92766685bf6c2cca518448261ad7fc2e0cfd9503335bb38b384eb77dd2272c44f15bed4aa8b73df7a7dc914126b453e3824502b39
ripemd-160
0aa2889114d345068b472a9c748066641a9d2b75
Diameter
43209730
Circumference
135747370.3316
Area
1.4664018050596E+15
Volume
4.2241884045425E+22
Surface area
5.8656072202384E+15
Circumference
135747370.3316
Perimeter
86419460
Area
466770191668225
Diagonal
30553893.09624
Surface area
2800621150009350
Volume
1.0084506977016E+22
Space diagonal
37420723.870667
Perimeter
64814595
Area
2.0211742185701E+14
Altitude
18710361.935333
Surface area
2.0211742185701E+14
Volume
1.1884705447285E+21
Height
10184631.03208