21408045 is an odd 8-digits composite number following 21408044
and preceding 21408046 . In scientific notation, it is written as 2.1408045 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 11376320 positive integers (up to 21408045) that are relatively prime to 21408045.
21408045 has 8 divisors, whose sum is 22917888
The reverse of 21408045 is 54080412
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million four hundred eight thousand forty-five
Scientific notation
2.1408045 × 10^7
Engineering notation
2.1408045 × 10^6
Prime Factorization
15 × 293 × 4871
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21408045
Product of the distinct prime numbers
The prime factorization of 21408045 is 15 × 293 × 4871.
Since it has a total of 3 prime factors.
8 , 7 , 12 , 45 , 354 , 712 , 2450 , 1972 , 5638 , 79509 , 824414 , 222466 , 9042560 , 2999063 , 52650055 , 40831599 , 446374278 , 428852228 , 5257028693 , 835900710
n×2
42816090
n×3
64224135
n×4
85632180
n×5
107040225
n÷2
10704022.5
n÷3
7136015
n÷3
5352011.25
n÷5
4281609
n2
458304390722025
n3
9.8114010202747E+21
n4
2.1004291455509E+29
n5
4.4966081667264E+36
2 √n
4626.8828599825
3 √n
277.6678961246
4 √n
68.021194196975
5 √n
29.249294940386
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
-21408044
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 21408045 can be divided by 8 positive divisors.
The sum of these divisors (counting 21408045) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001101010100100101101
3
Ternary
1111021122022120
4
Quaternary
1101222210231
5
Quinary
20440024140
6
Senary
2042503153
8
Octal
121524455
10
Decimal
21408045
12
Duodecimal
7204ab9
16
Hexadecimal
146a92d
20
Vigesimal
6dg025
36
Base36
cqujx
md5
375429818c4b9d774317da373018f446
sha1
bc70b0782f880ef3671f249d552c0d6d17fb37cd
sha256
d3912e87bf93439228a7de75ac0ceb587119c9e6bfd784ebcb0784e076db9037
sha512
555a77d38ac6f53ebcfc9ca1bde5997f42d56cbd7726445890f96e6c2851a3808037d56df4f7fc12d41384340905ab6149ed110d01dd3aa5e27491d2785d3705
ripemd-160
6ee116a1d704798bf8edf16b90010f659c31ca81
Diameter
42816090
Circumference
134510713.79944
Area
1.4398057070003E+15
Volume
4.1097900488958E+22
Surface area
5.759222828001E+15
Circumference
134510713.79944
Perimeter
85632180
Area
458304390722025
Diagonal
30275547.582894
Surface area
2749826344332150
Volume
9.8114010202747E+21
Space diagonal
37079821.630721
Perimeter
64224135
Area
1.9845162251561E+14
Altitude
18539910.81536
Surface area
1.9845162251561E+14
Volume
1.1562846990628E+21
Height
10091849.194298