31361891 is an odd 8-digits composite number following 31361890
and preceding 31361892 . In scientific notation, it is written as 3.1361891 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 28510800 positive integers (up to 31361891) that are relatively prime to 31361891.
31361891 has 4 divisors, whose sum is 34212984
The reverse of 31361891 is 19816313
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
thirty-one million three hundred sixty-one thousand eight hundred ninety-one
Scientific notation
3.1361891 × 10^7
Engineering notation
3.1361891 × 10^6
Prime Factorization
11 × 2851081
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31361891
Product of the distinct prime numbers
The prime factorization of 31361891 is 11 × 2851081.
Since it has a total of 2 prime factors.
2 , 6 , 3 , 31 , 167 , 562 , 9877 , 5986 , 77716 , 20133 , 234202 , 90756 , 1775684 , 496142 , 7724565 , 51367806 , 697658312 , 487924518 , 2827890732 , 4133334502
n×2
62723782
n×3
94085673
n×4
125447564
n×5
156809455
n÷2
15680945.5
n÷3
10453963.666667
n÷3
7840472.75
n÷5
6272378.2
n2
983568207095881
n3
3.0846558902006E+22
n4
9.6740641800981E+29
n5
3.0339694634324E+37
2 √n
5600.1688367405
3 √n
315.35574489307
4 √n
74.8342758149
5 √n
31.57042644112
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
-31361890
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 31361891 can be divided by 4 positive divisors.
The sum of these divisors (counting 31361891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111101000101101100011
3
Ternary
2012000100102112
4
Quaternary
1313220231203
5
Quinary
31012040031
6
Senary
3040105535
8
Octal
167505543
10
Decimal
31361891
12
Duodecimal
a6052ab
16
Hexadecimal
1de8b63
20
Vigesimal
9g04eb
36
Base36
io6zn
md5
d360ada94591c4f51ace06649950780a
sha1
d8fbae7a43ccfed9ef5780d4284c95d20d28c500
sha256
1f0563c13bc9813066a967d94d08dd03d11a75f5ce72783f0c9927b473a28d5c
sha512
7b6fad6180f3ed728b9d91d9cc0c137a1a2fbc1c02e9f62d224e25ae428081f2d915172c19dcccd81da95285a3facd9354646b54f2b10dd0dfb3eebc2cafe867
ripemd-160
acdedcb2eeb09a3ddf75fb21455b14503a939917
Diameter
62723782
Circumference
197052572.73657
Area
3.0899706537169E+15
Volume
1.2920976378009E+23
Surface area
1.2359882614868E+16
Circumference
197052572.73657
Perimeter
125447564
Area
983568207095881
Diagonal
44352411.593867
Surface area
5901409242575286
Volume
3.0846558902006E+22
Space diagonal
54320388.633437
Perimeter
94085673
Area
4.2589752684987E+14
Altitude
27160194.316719
Surface area
4.2589752684987E+14
Volume
3.6353018293132E+21
Height
14784137.197956