31009905 is an odd 8-digits composite number following 31009904
and preceding 31009906 . In scientific notation, it is written as 3.1009905 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 16538544 positive integers (up to 31009905) that are relatively prime to 31009905.
31009905 has 8 divisors, whose sum is 38590272
The reverse of 31009905 is 50990013
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
thirty-one million nine thousand nine hundred five
Scientific notation
3.1009905 × 10^7
Engineering notation
3.1009905 × 10^6
Prime Factorization
27 × 5 × 229703
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
31009905
Product of the distinct prime numbers
The prime factorization of 31009905 is 27 × 5 × 229703.
Since it has a total of 3 prime factors.
4 , 3 , 87 , 3 , 879 , 37 , 2695 , 6362 , 68264 , 78354 , 52863 , 409063 , 2285912 , 6689187 , 2079301 , 44914530 , 245044257 , 685308742 , 2496331373 , 9736349213
n×2
62019810
n×3
93029715
n×4
124039620
n×5
155049525
n÷2
15504952.5
n÷3
10336635
n÷3
7752476.25
n÷5
6201981
n2
961614208109025
n3
2.9819565240111E+22
n4
9.2470188523715E+29
n5
2.8674917614525E+37
2 √n
5568.6537870476
3 √n
314.17151906924
4 √n
74.623413129176
5 √n
31.49924084898
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31009904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31009905 can be divided by 8 positive divisors.
The sum of these divisors (counting 31009905) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110010010110001110001
3
Ternary
2011100110121000
4
Quaternary
1312102301301
5
Quinary
30414304110
6
Senary
3024352213
8
Octal
166226161
10
Decimal
31009905
12
Duodecimal
a475669
16
Hexadecimal
1d92c71
20
Vigesimal
9dg4f5
36
Base36
igne9
md5
28c84de80ceac4a2616e112c54a9c58d
sha1
bbc637c48f52e7bd9020015aebffff10852effea
sha256
b7e4f32bc223cadb1d254c7708e7d2e4686e728274cf2e7d75f86b33900b9acf
sha512
f856735b1e260447cecd688fcd59145cacddc12bc9337c3f486501efed6b2423d013b5de096ff1a19cf55f2725c4a2141835e21f2ed74115f09ac5814236171a
ripemd-160
c8e6cc14654d495ea350859a64b34f8e6c3210a2
Diameter
62019810
Circumference
194840979.47303
Area
3.0210001317829E+15
Volume
1.2490790278877E+23
Surface area
1.2084000527132E+16
Circumference
194840979.47303
Perimeter
124039620
Area
961614208109025
Diagonal
43854628.218901
Surface area
5769685248654150
Volume
2.9819565240111E+22
Space diagonal
53710730.997884
Perimeter
93029715
Area
4.1639116643124E+14
Altitude
26855365.498942
Surface area
4.1639116643124E+14
Volume
3.5142694655529E+21
Height
14618209.4063