31191997 is an odd 8-digits prime number following 31191996
and preceding 31191998 . In scientific notation, it is written as 3.1191997 × 10^7.
The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors.
There are 31191996 positive integers (up to 31191997) that are relatively prime to 31191997.
31191997 has 2 divisors, whose sum is 31191998
The reverse of 31191997 is 79919113
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
thirty-one million one hundred ninety-one thousand nine hundred ninety-seven
Scientific notation
3.1191997 × 10^7
Engineering notation
3.1191997 × 10^6
Prime Factorization
31191997
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
31191997
Product of the distinct prime numbers
The prime factorization of 31191997 is 31191997.
Since it has a total of 1 prime factors.
7 , 10 , 66 , 35 , 661 , 136 , 7343 , 3349 , 16865 , 11856 , 948937 , 806298 , 1152532 , 9167412 , 42836125 , 11582548 , 65544537 , 77054846 , 8753356881 , 867246987
n×2
62383994
n×3
93575991
n×4
124767988
n×5
155959985
n÷2
15595998.5
n÷3
10397332.333333
n÷3
7797999.25
n÷5
6238399.4
n2
972940676848009
n3
3.0347962673421E+22
n4
9.4661356066546E+29
n5
2.9526767344436E+37
2 √n
5584.9795881453
3 √n
314.78526391014
4 √n
74.732721000545
5 √n
31.536147345456
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
31191998
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
15595999
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
5584.9796776712
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999935881
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31191997 can be divided by 2 positive divisors.
The sum of these divisors (counting 31191997) is 31191998, the average is 15595999.
Base
System
Value
2
Binary
1110110111111001110111101
3
Ternary
2011200201101011
4
Quaternary
1312333032331
5
Quinary
30441120442
6
Senary
3032315221
8
Octal
166771675
10
Decimal
31191997
12
Duodecimal
a542b11
16
Hexadecimal
1dbf3bd
20
Vigesimal
9eijjh
36
Base36
ikjwd
md5
c5248882b5469be69661c495d18b1c63
sha1
e0324ec168a1ac9dfb9a3adf67422e3890920547
sha256
28103b2810c11f62011a05a7afbcf613bce0012f159629445b779728c936c386
sha512
b035b41e04dd7e376a64063749863b0108e7073eeab0fd05ca3e12e6f4275cab37351e7788555cf605213ec1d72972bce60b42205f37ff8242c1f7a4cc6f290e
ripemd-160
b04b0672fcc1a57fdad286f63b0689f99ad24836
Diameter
62383994
Circumference
195985097.25199
Area
3.0565832827644E+15
Volume
1.2712124878165E+23
Surface area
1.2226333131058E+16
Circumference
195985097.25199
Perimeter
124767988
Area
972940676848009
Diagonal
44112145.194901
Surface area
5837644061088054
Volume
3.0347962673421E+22
Space diagonal
54026123.593536
Perimeter
93575991
Area
4.212956712628E+14
Altitude
27013061.796768
Surface area
4.212956712628E+14
Volume
3.576541700262E+21
Height
14704048.3983