38781681 is an odd 8-digits composite number following 38781680
and preceding 38781682 . In scientific notation, it is written as 3.8781681 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 25854452 positive integers (up to 38781681) that are relatively prime to 38781681.
38781681 has 4 divisors, whose sum is 51708912
The reverse of 38781681 is 18618783
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
thirty-eight million seven hundred eighty-one thousand six hundred eighty-one
Scientific notation
3.8781681 × 10^7
Engineering notation
3.8781681 × 10^6
Prime Factorization
3 × 12927227
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
38781681
Product of the distinct prime numbers
The prime factorization of 38781681 is 3 × 12927227.
Since it has a total of 2 prime factors.
1 , 3 , 13 , 71 , 208 , 989 , 9693 , 6161 , 12713 , 54125 , 198757 , 358896 , 3737142 , 8252858 , 17037335 , 31363945 , 63068451 , 216708485 , 4281808205 , 9146252508
n×2
77563362
n×3
116345043
n×4
155126724
n×5
193908405
n÷2
19390840.5
n÷3
12927227
n÷3
9695420.25
n÷5
7756336.2
n2
1504018781185761
n3
5.8328376589955E+22
n4
2.2620724941595E+30
n5
8.7726973867368E+37
2 √n
6227.4939582468
3 √n
338.4871684832
4 √n
78.914472425828
5 √n
32.940131300274
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
-38781680
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 38781681 can be divided by 4 positive divisors.
The sum of these divisors (counting 38781681) is 1, the average is 0.25.
Base
System
Value
2
Binary
10010011111100001011110001
3
Ternary
2200222022110120
4
Quaternary
2103330023301
5
Quinary
34412003211
6
Senary
3503120453
8
Octal
223741361
10
Decimal
38781681
12
Duodecimal
10ba3129
16
Hexadecimal
24fc2f1
20
Vigesimal
c27e41
36
Base36
n384x
md5
45b3d826676f58bc01e35fca1be7081f
sha1
3f604c3d3e8ca83ac65ba280a400c21fb0bb0072
sha256
03e50a6dd52b531164e33db1447ffcf1a6789ccfec3f0f97d5ee744a19aafec3
sha512
947f010c5fac1b6f2674a3b0540184a09e0450fd1621ec8fcb230960621ddb135c92a6f646e83766788b0c0d1a88e8fc29523cfa323d30e8bf65d04eb31cdb32
ripemd-160
18d1a827a0dbd1ff4fddcbe633e363a8890915f6
Diameter
77563362
Circumference
243672488.24693
Area
4.7250143538343E+15
Volume
2.443253325211E+23
Surface area
1.8900057415337E+16
Circumference
243672488.24693
Perimeter
155126724
Area
1504018781185761
Diagonal
54845579.241827
Surface area
9024112687114566
Volume
5.8328376589955E+22
Space diagonal
67171841.894929
Perimeter
116345043
Area
6.5125923613789E+14
Altitude
33585920.947464
Surface area
6.5125923613789E+14
Volume
6.8740651037266E+21
Height
18281859.747276