38991621 is an odd 8-digits composite number following 38991620
and preceding 38991622 . In scientific notation, it is written as 3.8991621 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 25994412 positive integers (up to 38991621) that are relatively prime to 38991621.
38991621 has 4 divisors, whose sum is 51988832
The reverse of 38991621 is 12619983
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
thirty-eight million nine hundred ninety-one thousand six hundred twenty-one
Scientific notation
3.8991621 × 10^7
Engineering notation
3.8991621 × 10^6
Prime Factorization
3 × 12997207
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
38991621
Product of the distinct prime numbers
The prime factorization of 38991621 is 3 × 12997207.
Since it has a total of 2 prime factors.
10 , 1 , 8 , 18 , 31 , 878 , 312 , 1968 , 95666 , 64734 , 261545 , 737981 , 4262239 , 9070728 , 30086287 , 39721902 , 476038344 , 122279893 , 873342990 , 6784643184
n×2
77983242
n×3
116974863
n×4
155966484
n×5
194958105
n÷2
19495810.5
n÷3
12997207
n÷3
9747905.25
n÷5
7798324.2
n2
1520346508207641
n3
5.9280774836706E+22
n4
2.3114535050192E+30
n5
9.0127319026829E+37
2 √n
6244.3271054614
3 √n
339.09685627076
4 √n
79.021054823771
5 √n
32.975717819751
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
-38991620
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 38991621 can be divided by 4 positive divisors.
The sum of these divisors (counting 38991621) is 1, the average is 0.25.
Base
System
Value
2
Binary
10010100101111011100000101
3
Ternary
2201100222110010
4
Quaternary
2110233130011
5
Quinary
34440212441
6
Senary
3511420433
8
Octal
224573405
10
Decimal
38991621
12
Duodecimal
11084719
16
Hexadecimal
252f705
20
Vigesimal
c3dj11
36
Base36
n7q4l
md5
e2c2ec8efab9fbe44058e01b5cb2d08d
sha1
398de669506b345aab0e410805153d4b595c6173
sha256
88e294556096fbfa2a6774bb8caddf25baab7ddba0a593c5261bdcce0e59e668
sha512
ce81b49615f398264c48aee5dae9f347778cf5acbcc8bc2184288746e063d8c98d6dfd887db7a83e699c6d610d9f970b7034484040e0ca71b50e9cbae44f6d20
ripemd-160
84b46cbf46be46aff496858ad40df589828c210d
Diameter
77983242
Circumference
244991580.17031
Area
4.776309421096E+15
Volume
2.4831472896814E+23
Surface area
1.9105237684384E+16
Circumference
244991580.17031
Perimeter
155966484
Area
1520346508207641
Diagonal
55142479.237112
Surface area
9122079049245846
Volume
5.9280774836706E+22
Space diagonal
67535468.64147
Perimeter
116974863
Area
6.5832934933139E+14
Altitude
33767734.320735
Surface area
6.5832934933139E+14
Volume
6.9863063135046E+21
Height
18380826.412371