21542747 is an odd 8-digits composite number following 21542746
and preceding 21542748 . In scientific notation, it is written as 2.1542747 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 21269976 positive integers (up to 21542747) that are relatively prime to 21542747.
21542747 has 4 divisors, whose sum is 21815520
The reverse of 21542747 is 74724512
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million five hundred forty-two thousand seven hundred forty-seven
Scientific notation
2.1542747 × 10^7
Engineering notation
2.1542747 × 10^6
Prime Factorization
79 × 272693
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21542747
Product of the distinct prime numbers
The prime factorization of 21542747 is 79 × 272693.
Since it has a total of 2 prime factors.
7 , 9 , 89 , 80 , 799 , 301 , 4184 , 8692 , 34342 , 96240 , 351148 , 439239 , 5318717 , 6069469 , 81477220 , 19982383 , 595088189 , 177286451 , 8236859366 , 8304349768
n×2
43085494
n×3
64628241
n×4
86170988
n×5
107713735
n÷2
10771373.5
n÷3
7180915.6666667
n÷3
5385686.75
n÷5
4308549.4
n2
464089948306009
n3
9.9977723415994E+21
n4
2.1537948011867E+29
n5
4.6398656491881E+36
2 √n
4641.4164863757
3 √n
278.24905221447
4 √n
68.127942038313
5 √n
29.286010666387
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
-21542746
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 21542747 can be divided by 4 positive divisors.
The sum of these divisors (counting 21542747) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001011011101011011
3
Ternary
1111112111002112
4
Quaternary
1102023131123
5
Quinary
21003331442
6
Senary
2045422535
8
Octal
122133533
10
Decimal
21542747
12
Duodecimal
726aa4b
16
Hexadecimal
148b75b
20
Vigesimal
6ecgh7
36
Base36
ctqhn
md5
0d5072adebd435c82c2470eb3294114d
sha1
86e143a5b00c61d6e7ec09ea78751da39a4957a9
sha256
fcd7674859c9d376b22081268188aec4878dd7bf1b53b7bf6df2daed02640147
sha512
c9e04138f1123ff710d38e475a5c874353f7ec9c0549e5881c6b2812cc82e39f63f9705bc1d21622130dea9fe8386d41f3671d270478ee30efc6cc189d1c41ee
ripemd-160
9b5af22956ee9daa5ec41555549e00814bb08a98
Diameter
43085494
Circumference
135357071.42669
Area
1.457981572203E+15
Volume
4.1878570854176E+22
Surface area
5.8319262888121E+15
Circumference
135357071.42669
Perimeter
86170988
Area
464089948306009
Diagonal
30466044.978172
Surface area
2784539689836054
Volume
9.9977723415994E+21
Space diagonal
37313132.338602
Perimeter
64628241
Area
2.0095684243701E+14
Altitude
18656566.169301
Surface area
2.0095684243701E+14
Volume
1.1782487699174E+21
Height
10155348.326057