21072542 is an even 8-digits composite number following 21072541
and preceding 21072543 . In scientific notation, it is written as 2.1072542 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 10536270 positive integers (up to 21072542) that are relatively prime to 21072542.
21072542 has 4 divisors, whose sum is 31608816
The reverse of 21072542 is 24527012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million seventy-two thousand five hundred forty-two
Scientific notation
2.1072542 × 10^7
Engineering notation
2.1072542 × 10^6
Prime Factorization
2 × 10536271
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21072542
Product of the distinct prime numbers
The prime factorization of 21072542 is 2 × 10536271.
Since it has a total of 2 prime factors.
9 , 5 , 36 , 3 , 970 , 372 , 9942 , 7267 , 53893 , 20355 , 850221 , 388970 , 2650487 , 3261558 , 33954180 , 1340851 , 732299036 , 584796271 , 843093827 , 9622032721
n×2
42145084
n×3
63217626
n×4
84290168
n×5
105362710
n÷2
10536271
n÷3
7024180.6666667
n÷3
5268135.5
n÷5
4214508.4
n2
444052026341764
n3
9.3573049752719E+21
n4
1.9718220209823E+29
n5
4.1551302353674E+36
2 √n
4590.4838524931
3 √n
276.20973171434
4 √n
67.753109541136
5 √n
29.157036842946
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
-21072541
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 21072542 can be divided by 4 positive divisors.
The sum of these divisors (counting 21072542) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011000101010011110
3
Ternary
1110122121002112
4
Quaternary
1100120222132
5
Quinary
20343310132
6
Senary
2031354022
8
Octal
120305236
10
Decimal
21072542
12
Duodecimal
7082912
16
Hexadecimal
1418a9e
20
Vigesimal
6be172
36
Base36
cjnoe
md5
bac8b8d33fa607ac81f890a03cfb4363
sha1
4da733b2aca34278969ad1bcf2a4907d3e3ef23a
sha256
b5f3872630f1c56f5dc4ff5b9c5828dd71b67afa9db12f96f9df7a85d086e4ec
sha512
2e1501555d6e79960b7d59569d873b3db382a534aef3029f9b934134bbb06eaa326745cc49eb9653fd81d9a125832de33d5857d514e5d72b295f2ffc10766707
ripemd-160
dcd502c2de63042a127a124935bc43f63c3b325f
Diameter
42145084
Circumference
132402686.27932
Area
1.3950305837669E+15
Volume
3.9195787423618E+22
Surface area
5.5801223350678E+15
Circumference
132402686.27932
Perimeter
84290168
Area
444052026341764
Diagonal
29801074.690077
Surface area
2664312158050584
Volume
9.3573049752719E+21
Space diagonal
36498713.388629
Perimeter
63217626
Area
1.9228016770696E+14
Altitude
18249356.694315
Surface area
1.9228016770696E+14
Volume
1.1027689669409E+21
Height
9933691.5633589