38991665 is an odd 8-digits composite number following 38991664
and preceding 38991666 . In scientific notation, it is written as 3.8991665 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 31193328 positive integers (up to 38991665) that are relatively prime to 38991665.
38991665 has 4 divisors, whose sum is 46790004
The reverse of 38991665 is 56619983
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
thirty-eight million nine hundred ninety-one thousand six hundred sixty-five
Scientific notation
3.8991665 × 10^7
Engineering notation
3.8991665 × 10^6
Prime Factorization
5 × 7798333
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
38991665
Product of the distinct prime numbers
The prime factorization of 38991665 is 5 × 7798333.
Since it has a total of 2 prime factors.
3 , 1 , 13 , 22 , 306 , 263 , 2083 , 4426 , 25093 , 68854 , 715200 , 801648 , 403656 , 3986779 , 97474413 , 71493204 , 282270357 , 496528881 , 404530401 , 3351124532
n×2
77983330
n×3
116974995
n×4
155966660
n×5
194958325
n÷2
19495832.5
n÷3
12997221.666667
n÷3
9747916.25
n÷5
7798333
n2
1520349939472225
n3
5.9280975522671E+22
n4
2.3114639384532E+30
n5
9.0127827547748E+37
2 √n
6244.3306286583
3 √n
339.09698382172
4 √n
79.021077116541
5 √n
32.975725262021
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
-38991664
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 38991665 can be divided by 4 positive divisors.
The sum of these divisors (counting 38991665) is 1, the average is 0.25.
Base
System
Value
2
Binary
10010100101111011100110001
3
Ternary
2201100222111202
4
Quaternary
2110233130301
5
Quinary
34440213130
6
Senary
3511420545
8
Octal
224573461
10
Decimal
38991665
12
Duodecimal
11084755
16
Hexadecimal
252f731
20
Vigesimal
c3dj35
36
Base36
n7q5t
md5
e0fe2e93eaffdc707f30a19befc659bc
sha1
0ca6ba6f1c73f64a140dc19f467eda3be8d46943
sha256
e24995fb6b95839564b1ab01d9257dd2aa76f23e27dd9229f6e4892b01540458
sha512
15ce5709b9a6c997dc88f0d9e5107cfae824f72529671be5f45c6ec288025b6f91959a9ff9c0e04451c7d3d8d7573f7cd94e965cd291488d5c8116820bf4e950
ripemd-160
75f0e71ea5f299161175dd8b63203fe2cb8e4f4e
Diameter
77983330
Circumference
244991856.63047
Area
4.7763202007316E+15
Volume
2.4831556959955E+23
Surface area
1.9105280802927E+16
Circumference
244991856.63047
Perimeter
155966660
Area
1520349939472225
Diagonal
55142541.462508
Surface area
9122099636833350
Volume
5.9280975522671E+22
Space diagonal
67535544.851705
Perimeter
116974995
Area
6.5833083511254E+14
Altitude
33767772.425853
Surface area
6.5833083511254E+14
Volume
6.9863299645724E+21
Height
18380847.154169