21909539 is an odd 8-digits composite number following 21909538
and preceding 21909540 . In scientific notation, it is written as 2.1909539 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 21280000 positive integers (up to 21909539) that are relatively prime to 21909539.
21909539 has 8 divisors, whose sum is 22543920
The reverse of 21909539 is 93590912
Previous prime number is 251
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million nine hundred nine thousand five hundred thirty-nine
Scientific notation
2.1909539 × 10^7
Engineering notation
2.1909539 × 10^6
Prime Factorization
41 × 251 × 2129
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21909539
Product of the distinct prime numbers
The prime factorization of 21909539 is 41 × 251 × 2129.
Since it has a total of 3 prime factors.
9 , 8 , 15 , 49 , 437 , 462 , 48 , 1011 , 69299 , 25606 , 697364 , 820761 , 2202183 , 3708065 , 1596280 , 61431878 , 105955728 , 926732381 , 8600822422 , 112145373
n×2
43819078
n×3
65728617
n×4
87638156
n×5
109547695
n÷2
10954769.5
n÷3
7303179.6666667
n÷3
5477384.75
n÷5
4381907.8
n2
480027899192521
n3
1.0517189978447E+22
n4
2.3042678400319E+29
n5
5.0485446107624E+36
2 √n
4680.7626515345
3 √n
279.81935201357
4 √n
68.416099359248
5 √n
29.38506447315
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
-21909538
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 21909539 can be divided by 8 positive divisors.
The sum of these divisors (counting 21909539) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011100101000000100011
3
Ternary
1112020010020102
4
Quaternary
1103211000203
5
Quinary
21102101124
6
Senary
2101333015
8
Octal
123450043
10
Decimal
21909539
12
Duodecimal
740716b
16
Hexadecimal
14e5023
20
Vigesimal
6gidgj
36
Base36
d1lib
md5
c04c99976a1254689685527a0122b231
sha1
6d4090c140b6dd0bf2c2d77e3e5b6e6f6cd903cf
sha256
a9a9447925939e15c9f4537b3a88da9610448a855f870306dc58bc86714b71e4
sha512
920c9247c1b00f87d86c2107cf37eee8d2a8357975931671192de6532583e1378b72a2566284a38f7f078cac1497618887eed6bcf538a99a3d30c4c8088744dc
ripemd-160
76ec4244232c5b83468e1c0667f111bb95d34b69
Diameter
43819078
Circumference
137661693.53188
Area
1.5080521216214E+15
Volume
4.4054302363595E+22
Surface area
6.0322084864855E+15
Circumference
137661693.53188
Perimeter
87638156
Area
480027899192521
Diagonal
30984767.199142
Surface area
2880167395155126
Volume
1.0517189978447E+22
Space diagonal
37948434.718412
Perimeter
65728617
Area
2.07858177613E+14
Altitude
18974217.359206
Surface area
2.07858177613E+14
Volume
1.2394627254645E+21
Height
10328255.733047