38205721 is an odd 8-digits composite number following 38205720
and preceding 38205722 . In scientific notation, it is written as 3.8205721 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 38185344 positive integers (up to 38205721) that are relatively prime to 38205721.
38205721 has 4 divisors, whose sum is 38226100
The reverse of 38205721 is 12750283
Previous prime number is 2089
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
thirty-eight million two hundred five thousand seven hundred twenty-one
Scientific notation
3.8205721 × 10^7
Engineering notation
3.8205721 × 10^6
Prime Factorization
2089 × 18289
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
38205721
Product of the distinct prime numbers
The prime factorization of 38205721 is 2089 × 18289.
Since it has a total of 2 prime factors.
2 , 2 , 7 , 60 , 270 , 401 , 7913 , 2562 , 71001 , 65880 , 353975 , 339704 , 5252983 , 3923164 , 842713 , 97988908 , 204962600 , 170240944 , 4433728928 , 1198557089
n×2
76411442
n×3
114617163
n×4
152822884
n×5
191028605
n÷2
19102860.5
n÷3
12735240.333333
n÷3
9551430.25
n÷5
7641144.2
n2
1459677117129841
n3
5.5768016687147E+22
n4
2.1306572862725E+30
n5
8.1403297825944E+37
2 √n
6181.0776568492
3 √n
336.80314119743
4 √n
78.619829921268
5 √n
32.841703808618
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
-38205720
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 38205721 can be divided by 4 positive divisors.
The sum of these divisors (counting 38205721) is 1, the average is 0.25.
Base
System
Value
2
Binary
10010001101111100100011001
3
Ternary
2122220001101201
4
Quaternary
2101233210121
5
Quinary
34240040341
6
Senary
3442514201
8
Octal
221574431
10
Decimal
38205721
12
Duodecimal
10965961
16
Hexadecimal
246f919
20
Vigesimal
bife61
36
Base36
mqvq1
md5
0a94a804cc54efecb5ee2f4336e3fdff
sha1
17f69c99be8b622364491ced97e16c7300fd2a94
sha256
8c8df80d5a136bc8c14d61d861b20a5d0c8c1760f4b04b33b8de237dab8e1690
sha512
c6e9f093f46e4572335212af7092f0360c5e3ca15c0db2638c45c96887428dafd0bd798d22ba620f8d0c568205c4127efc9559eba9e003b923eb765998614085
ripemd-160
04f9838eb73f12f997a6c50a5895c3c2df8ebd1a
Diameter
76411442
Circumference
240053624.8374
Area
4.5857109077882E+15
Volume
2.3360052203949E+23
Surface area
1.8342843631153E+16
Circumference
240053624.8374
Perimeter
152822884
Area
1459677117129841
Diagonal
54031048.798443
Surface area
8758062702779046
Volume
5.5768016687147E+22
Space diagonal
66174249.911801
Perimeter
114617163
Area
6.3205873237864E+14
Altitude
33087124.955901
Surface area
6.3205873237864E+14
Volume
6.5723237954677E+21
Height
18010349.599481