31991401 is an odd 8-digits composite number following 31991400
and preceding 31991402 . In scientific notation, it is written as 3.1991401 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 29530512 positive integers (up to 31991401) that are relatively prime to 31991401.
31991401 has 4 divisors, whose sum is 34452292
The reverse of 31991401 is 10419913
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
thirty-one million nine hundred ninety-one thousand four hundred one
Scientific notation
3.1991401 × 10^7
Engineering notation
3.1991401 × 10^6
Prime Factorization
13 × 2460877
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31991401
Product of the distinct prime numbers
The prime factorization of 31991401 is 13 × 2460877.
Since it has a total of 2 prime factors.
6 , 7 , 94 , 62 , 40 , 336 , 3093 , 124 , 49008 , 4435 , 795231 , 160479 , 3119216 , 1553365 , 83213559 , 55502556 , 846321431 , 480025870 , 6035285657 , 2953638917
n×2
63982802
n×3
95974203
n×4
127965604
n×5
159957005
n÷2
15995700.5
n÷3
10663800.333333
n÷3
7997850.25
n÷5
6398280.2
n2
1023449737942801
n3
3.2741590969873E+22
n4
1.0474493660952E+30
n5
3.3509372697947E+37
2 √n
5656.0941470241
3 √n
317.45177021759
4 √n
75.207008629675
5 √n
31.696160104011
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
-31991400
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 31991401 can be divided by 4 positive divisors.
The sum of these divisors (counting 31991401) is 1, the average is 0.25.
Base
System
Value
2
Binary
1111010000010011001101001
3
Ternary
2020012022221201
4
Quaternary
1322002121221
5
Quinary
31142211101
6
Senary
3101404201
8
Octal
172023151
10
Decimal
31991401
12
Duodecimal
a869661
16
Hexadecimal
1e82669
20
Vigesimal
9jiia1
36
Base36
j1oq1
md5
39cd9539af38b3f650fdefd8dcdaf19f
sha1
a4bde399b2eb800464eb12a2dc63cacc98f6e756
sha256
6073f880791a449702e27db53017fe345ffb917183c819746ea513a70aefa973
sha512
e2f7b13e7d02f32c92ce166bd126b554c90e8c81e7d74405064a3dc6711df7a65319863124845c6f94423e3ebbb4ab5ee99b16af6ec8b673963365081f8dc6ee
ripemd-160
82598457b5a44970f2ebdaf52f08d240df26466f
Diameter
63982802
Circumference
201007900.71929
Area
3.2152621780395E+15
Volume
1.3714765554373E+23
Surface area
1.2861048712158E+16
Circumference
201007900.71929
Perimeter
127965604
Area
1023449737942801
Diagonal
45242673.173516
Surface area
6140698427656806
Volume
3.2741590969873E+22
Space diagonal
55410731.93731
Perimeter
95974203
Area
4.431667362775E+14
Altitude
27705365.968655
Surface area
4.431667362775E+14
Volume
3.8586335002722E+21
Height
15080891.057839