21909542 is an even 8-digits composite number following 21909541
and preceding 21909543 . In scientific notation, it is written as 2.1909542 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 10848312 positive integers (up to 21909542) that are relatively prime to 21909542.
21909542 has 8 divisors, whose sum is 33183696
The reverse of 21909542 is 24590912
Previous prime number is 103
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million nine hundred nine thousand five hundred forty-two
Scientific notation
2.1909542 × 10^7
Engineering notation
2.1909542 × 10^6
Prime Factorization
2 × 103 × 106357
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21909542
Product of the distinct prime numbers
The prime factorization of 21909542 is 2 × 103 × 106357.
Since it has a total of 3 prime factors.
4 , 5 , 62 , 95 , 983 , 59 , 6489 , 1494 , 68709 , 17349 , 360624 , 976896 , 9641890 , 4798383 , 38505382 , 11839494 , 446572321 , 786490624 , 5599177639 , 6932779966
n×2
43819084
n×3
65728626
n×4
87638168
n×5
109547710
n÷2
10954771
n÷3
7303180.6666667
n÷3
5477385.5
n÷5
4381908.4
n2
480028030649764
n3
1.0517194298698E+22
n4
2.3042691020949E+29
n5
5.0485480671651E+36
2 √n
4680.7629719951
3 √n
279.81936478514
4 √n
68.416101701245
5 √n
29.385065277869
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
-21909541
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 21909542 can be divided by 8 positive divisors.
The sum of these divisors (counting 21909542) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011100101000000100110
3
Ternary
1112020010020112
4
Quaternary
1103211000212
5
Quinary
21102101132
6
Senary
2101333022
8
Octal
123450046
10
Decimal
21909542
12
Duodecimal
7407172
16
Hexadecimal
14e5026
20
Vigesimal
6gidh2
36
Base36
d1lie
md5
0908993968e1ae0197cc7bb6405cc886
sha1
fe6325b1ec7c2189f186c74aa1da4829c3a71e6b
sha256
3d392ee2f43a8abdd9ddfd8010699c3a80bc7b25efc7fdaa00fbd3a336f941b9
sha512
4d9e8c742f1bbdb5e7a2923f3440bfa4171029f52534341bc9928acc2a937fbe401965b6beb9dbdfe2398b2060af7a2b5b674ef5c62681b224b4540ffd3bb443
ripemd-160
4babea2d1ed81b483bff25ac88bd5c95363e9240
Diameter
43819084
Circumference
137661712.38143
Area
1.5080525346065E+15
Volume
4.4054320460223E+22
Surface area
6.0322101384259E+15
Circumference
137661712.38143
Perimeter
87638168
Area
480028030649764
Diagonal
30984771.441783
Surface area
2880168183898584
Volume
1.0517194298698E+22
Space diagonal
37948439.914564
Perimeter
65728626
Area
2.0785823453566E+14
Altitude
18974219.957282
Surface area
2.0785823453566E+14
Volume
1.239463234611E+21
Height
10328257.147261