31191916 is an even 8-digits composite number following 31191915
and preceding 31191917 . In scientific notation, it is written as 3.1191916 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 13367952 positive integers (up to 31191916) that are relatively prime to 31191916.
31191916 has 12 divisors, whose sum is 62383888
The reverse of 31191916 is 61919113
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
thirty-one million one hundred ninety-one thousand nine hundred sixteen
Scientific notation
3.1191916 × 10^7
Engineering notation
3.1191916 × 10^6
Prime Factorization
2 × 2 × 7 × 1113997
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
15595958
Product of the distinct prime numbers
The prime factorization of 31191916 is 2 × 2 × 7 × 1113997.
Since it has a total of 4 prime factors.
1 , 1 , 6 , 88 , 75 , 541 , 5728 , 7246 , 59871 , 8524 , 508560 , 946998 , 1143311 , 5585647 , 58017320 , 66168499 , 218311117 , 211456572 , 1707563483 , 4019205007
n×2
62383832
n×3
93575748
n×4
124767664
n×5
155959580
n÷2
15595958
n÷3
10397305.333333
n÷3
7797979
n÷5
6238383.2
n2
972935623751056
n3
3.0347726249451E+22
n4
9.4660372796386E+29
n5
2.9526383967935E+37
2 √n
5584.9723365474
3 √n
314.78499142969
4 √n
74.732672483643
5 √n
31.5361309667
1 , 2 , 4 , 7 , 14 , 28 , 1113997 , 2227994 , 4455988 , 7797979 , 15595958 , 31191916
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31191915
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31191916 can be divided by 12 positive divisors.
The sum of these divisors (counting 31191916) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110110111111001101101100
3
Ternary
2011200201021011
4
Quaternary
1312333031230
5
Quinary
30441120131
6
Senary
3032315004
8
Octal
166771554
10
Decimal
31191916
12
Duodecimal
a542a64
16
Hexadecimal
1dbf36c
20
Vigesimal
9eijfg
36
Base36
ikju4
md5
a3c3fff8f0b5aebab9a91f0c37135ee3
sha1
fc3e27159e57f8c5f1b6a008eeec23a5433287c3
sha256
e39776cf6bf7f441963dc0b01e643384442dfba631ccc1ac20526da886bc5a9b
sha512
be895c0cc07d7d0f4fef759e7d7aa7695e05f1ee9870c72773c9d6b84af93adb89afb56905b71e54136501f409a2e061c2b81ed2db8f3c8eac305d08b3e54ac6
ripemd-160
3ef891c69ec19e07e2dd5bc3e3d5a33314b46bd5
Diameter
62383832
Circumference
195984588.31398
Area
3.0565674079921E+15
Volume
1.2712025845124E+23
Surface area
1.2226269631968E+16
Circumference
195984588.31398
Perimeter
124767664
Area
972935623751056
Diagonal
44112030.643602
Surface area
5837613742506336
Volume
3.0347726249451E+22
Space diagonal
54025983.297421
Perimeter
93575748
Area
4.2129348320764E+14
Altitude
27012991.64871
Surface area
4.2129348320764E+14
Volume
3.5765138374299E+21
Height
14704010.214534