38691891 is an odd 8-digits composite number following 38691890
and preceding 38691892 . In scientific notation, it is written as 3.8691891 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 22109544 positive integers (up to 38691891) that are relatively prime to 38691891.
38691891 has 16 divisors, whose sum is 65510400
The reverse of 38691891 is 19819683
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
thirty-eight million six hundred ninety-one thousand eight hundred ninety-one
Scientific notation
3.8691891 × 10^7
Engineering notation
3.8691891 × 10^6
Prime Factorization
9 × 7 × 3 × 204719
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
38691891
Product of the distinct prime numbers
The prime factorization of 38691891 is 9 × 7 × 3 × 204719.
Since it has a total of 4 prime factors.
6 , 2 , 62 , 63 , 396 , 727 , 6894 , 126 , 14067 , 4479 , 613438 , 279352 , 8538280 , 2618728 , 22289136 , 50293546 , 522945966 , 532302602 , 2671431426 , 5265460147
n×2
77383782
n×3
116075673
n×4
154767564
n×5
193459455
n÷2
19345945.5
n÷3
12897297
n÷3
9672972.75
n÷5
7738378.2
n2
1497062429155881
n3
5.7924176329095E+22
n4
2.2411959167901E+30
n5
8.6716108122088E+37
2 √n
6220.2806206794
3 √n
338.22573707115
4 √n
78.868755668385
5 √n
32.924864105728
1 , 3 , 7 , 9 , 21 , 27 , 63 , 189 , 204719 , 614157 , 1433033 , 1842471 , 4299099 , 5527413 , 12897297 , 38691891
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-38691890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 38691891 can be divided by 16 positive divisors.
The sum of these divisors (counting 38691891) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10010011100110010000110011
3
Ternary
2200210202022000
4
Quaternary
2103212100303
5
Quinary
34401120031
6
Senary
3501145043
8
Octal
223462063
10
Decimal
38691891
12
Duodecimal
10b5b183
16
Hexadecimal
24e6433
20
Vigesimal
c1g9eb
36
Base36
n1aur
md5
e9c3325ececea7534ddd5b22404153f2
sha1
278086676c1d252b180aa9a47e620cfad0027d04
sha256
dcc702b4c450b694da8f92b58f0246e254b356ef4129141a7e6737731516fabf
sha512
a98a28ec5c64810c633e9b6ef028891ef563ccc71906904a512a2b4c269cb2d75a441f284c194a5ee8d73803ed6e67443916be5f9bcaf6bf353ada0d935ea604
ripemd-160
7cd69f44eb4d376cf2b33130d4d6acdf2ed58ff2
Diameter
77383782
Circumference
243108321.03819
Area
4.7031603294014E+15
Volume
2.4263222242763E+23
Surface area
1.8812641317606E+16
Circumference
243108321.03819
Perimeter
154767564
Area
1497062429155881
Diagonal
54718597.006062
Surface area
8982374574935286
Volume
5.7924176329095E+22
Space diagonal
67016321.052917
Perimeter
116075673
Area
6.4824704735012E+14
Altitude
33508160.526458
Surface area
6.4824704735012E+14
Volume
6.826429646158E+21
Height
18239532.335354