21032405 is an odd 8-digits composite number following 21032404
and preceding 21032406 . In scientific notation, it is written as 2.1032405 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 16825920 positive integers (up to 21032405) that are relatively prime to 21032405.
21032405 has 4 divisors, whose sum is 25238892
The reverse of 21032405 is 50423012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million thirty-two thousand four hundred five
Scientific notation
2.1032405 × 10^7
Engineering notation
2.1032405 × 10^6
Prime Factorization
5 × 4206481
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21032405
Product of the distinct prime numbers
The prime factorization of 21032405 is 5 × 4206481.
Since it has a total of 2 prime factors.
9 , 4 , 45 , 18 , 757 , 124 , 4425 , 1370 , 73283 , 34367 , 743621 , 207692 , 270026 , 7825421 , 34217576 , 97549695 , 725086183 , 891276470 , 9416873804 , 4655113209
n×2
42064810
n×3
63097215
n×4
84129620
n×5
105162025
n÷2
10516202.5
n÷3
7010801.6666667
n÷3
5258101.25
n÷5
4206481
n2
442362060084025
n3
9.3039380043215E+21
n4
1.9568419220178E+29
n5
4.1157091824857E+36
2 √n
4586.1100074028
3 √n
276.03425413266
4 √n
67.720824030742
5 √n
29.145921253561
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
-21032404
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 21032405 can be divided by 4 positive divisors.
The sum of these divisors (counting 21032405) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110110111010101
3
Ternary
1110120120000222
4
Quaternary
1100032313111
5
Quinary
20341014110
6
Senary
2030444125
8
Octal
120166725
10
Decimal
21032405
12
Duodecimal
7063645
16
Hexadecimal
140edd5
20
Vigesimal
6b9105
36
Base36
cisph
md5
b381598c29799601e025aad6634b9912
sha1
bab71d2e114c3010c71735237ab96e4258c6c813
sha256
a6e8bd251202b70a45d43fffd5ad1b6c220c76ace15468b0013f49b829eb515a
sha512
8e87b95ffba45f547b8982d3040999be7585f5414edd83420b6a33bbe717940f39c7133a2d890395858acb36746da965aa85d1025391f16f622a31f620a09b2f
ripemd-160
bc4b55a0604058cddb83a69bc0fffcfa2e2e28c6
Diameter
42064810
Circumference
132150498.07065
Area
1.3897213981868E+15
Volume
3.8972244378442E+22
Surface area
5.5588855927473E+15
Circumference
132150498.07065
Perimeter
84129620
Area
442362060084025
Diagonal
29744312.400324
Surface area
2654172360504150
Volume
9.3039380043215E+21
Space diagonal
36429194.065366
Perimeter
63097215
Area
1.9154839085159E+14
Altitude
18214597.032683
Surface area
1.9154839085159E+14
Volume
1.0964796090992E+21
Height
9914770.8001079