31361491 is an odd 8-digits composite number following 31361490
and preceding 31361492 . In scientific notation, it is written as 3.1361491 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 25401600 positive integers (up to 31361491) that are relatively prime to 31361491.
31361491 has 16 divisors, whose sum is 37869568
The reverse of 31361491 is 19416313
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
thirty-one million three hundred sixty-one thousand four hundred ninety-one
Scientific notation
3.1361491 × 10^7
Engineering notation
3.1361491 × 10^6
Prime Factorization
31 × 7 × 43 × 3361
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
31361491
Product of the distinct prime numbers
The prime factorization of 31361491 is 31 × 7 × 43 × 3361.
Since it has a total of 4 prime factors.
7 , 7 , 97 , 12 , 771 , 926 , 7831 , 3244 , 33627 , 15922 , 639211 , 961105 , 8772912 , 4013362 , 775467 , 31542400 , 998966214 , 91856065 , 9723617789 , 1817994721
n×2
62722982
n×3
94084473
n×4
125445964
n×5
156807455
n÷2
15680745.5
n÷3
10453830.333333
n÷3
7840372.75
n÷5
6272298.2
n2
983543117743081
n3
3.0845378635212E+22
n4
9.6735706445978E+29
n5
3.0337759870842E+37
2 √n
5600.1331234177
3 √n
315.35440416998
4 √n
74.834037198441
5 √n
31.570345908763
1 , 7 , 31 , 43 , 217 , 301 , 1333 , 3361 , 9331 , 23527 , 104191 , 144523 , 729337 , 1011661 , 4480213 , 31361491
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
-31361490
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 31361491 can be divided by 16 positive divisors.
The sum of these divisors (counting 31361491) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111101000100111010011
3
Ternary
2012000022212201
4
Quaternary
1313220213103
5
Quinary
31012031431
6
Senary
3040104031
8
Octal
167504723
10
Decimal
31361491
12
Duodecimal
a605017
16
Hexadecimal
1de89d3
20
Vigesimal
9g03eb
36
Base36
io6oj
md5
15f9a4658f1a68179815df7bda69d608
sha1
ef6a8eba375177e18ca7288d735b507ed310856c
sha256
08de7e75824383ad083932b355bbb1c81460c82e9363127dd8f8e6e1892cf081
sha512
928c30815be13097941413f6755ac633b8c109a0e5d52eb0268f5b5383e21ac19462401de68e716459eb030c60fb7a6449eda09a78bcf557aaa227799982092b
ripemd-160
36ebe71db5d98921c56c2c25a9236b8f90a92cd4
Diameter
62722982
Circumference
197050059.46244
Area
3.0898918331905E+15
Volume
1.292048198901E+23
Surface area
1.2359567332762E+16
Circumference
197050059.46244
Perimeter
125445964
Area
983543117743081
Diagonal
44351845.908442
Surface area
5901258706458486
Volume
3.0845378635212E+22
Space diagonal
54319695.813114
Perimeter
94084473
Area
4.2588666284143E+14
Altitude
27159847.906557
Surface area
4.2588666284143E+14
Volume
3.6351627335375E+21
Height
14783948.636147