31997789 is an odd 8-digits composite number following 31997788
and preceding 31997790 . In scientific notation, it is written as 3.1997789 × 10^7.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 31971456 positive integers (up to 31997789) that are relatively prime to 31997789.
31997789 has 4 divisors, whose sum is 32024124
The reverse of 31997789 is 98779913
Previous prime number is 1277
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
thirty-one million nine hundred ninety-seven thousand seven hundred eighty-nine
Scientific notation
3.1997789 × 10^7
Engineering notation
3.1997789 × 10^6
Prime Factorization
1277 × 25057
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31997789
Product of the distinct prime numbers
The prime factorization of 31997789 is 1277 × 25057.
Since it has a total of 2 prime factors.
1 , 5 , 41 , 41 , 809 , 327 , 2577 , 2723 , 30601 , 96249 , 259222 , 805812 , 5914756 , 1159219 , 81767300 , 35338185 , 990836400 , 954522222 , 8374925162 , 7521384162
n×2
63995578
n×3
95993367
n×4
127991156
n×5
159988945
n÷2
15998894.5
n÷3
10665929.666667
n÷3
7999447.25
n÷5
6399557.8
n2
1023858500888521
n3
3.2761208277287E+22
n4
1.0482862298417E+30
n5
3.354284159408E+37
2 √n
5656.6588194799
3 √n
317.47289825913
4 √n
75.210762657215
5 √n
31.69742581226
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
-31997788
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 31997789 can be divided by 4 positive divisors.
The sum of these divisors (counting 31997789) is 1, the average is 0.25.
Base
System
Value
2
Binary
1111010000011111101011101
3
Ternary
2020012122201022
4
Quaternary
1322003331131
5
Quinary
31142412124
6
Senary
3101453525
8
Octal
172037535
10
Decimal
31997789
12
Duodecimal
a8712a5
16
Hexadecimal
1e83f5d
20
Vigesimal
9jje99
36
Base36
j1tnh
md5
3baa0482c9f09080e8368cc172aa033e
sha1
106c4e20e1543413b4b466db99b5cebba0169148
sha256
d87d5a8a325e78586fcad665fbafaf07f9818304719fa91607112613eb82ccc6
sha512
f41c4d25bb24ea2546995b25c5271e5394f6670262759a2142ad9b0a6dea3c22e7e1f51df607db210f827ab7f76daf8782cee8f992a924cbb0bfff9ae060ffef
ripemd-160
7bdff06f5edb5d03d22c907b036be84f98d6b05a
Diameter
63995578
Circumference
201048037.70703
Area
3.2165463447068E+15
Volume
1.3722982832887E+23
Surface area
1.2866185378827E+16
Circumference
201048037.70703
Perimeter
127991156
Area
1023858500888521
Diagonal
45251707.169753
Surface area
6143151005331126
Volume
3.2761208277287E+22
Space diagonal
55421796.277869
Perimeter
95993367
Area
4.4334373582506E+14
Altitude
27710898.138934
Surface area
4.4334373582506E+14
Volume
3.8609454221224E+21
Height
15083902.389918