20191131 is an odd 8-digits composite number following 20191130
and preceding 20191132 . In scientific notation, it is written as 2.0191131 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 13433760 positive integers (up to 20191131) that are relatively prime to 20191131.
20191131 has 8 divisors, whose sum is 22479600
The reverse of 20191131 is 13119102
Previous prime number is 3929
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred ninety-one thousand one hundred thirty-one
Scientific notation
2.0191131 × 10^7
Engineering notation
2.0191131 × 10^6
Prime Factorization
9 × 3929 × 571
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20191131
Product of the distinct prime numbers
The prime factorization of 20191131 is 9 × 3929 × 571.
Since it has a total of 3 prime factors.
9 , 8 , 93 , 9 , 504 , 97 , 6857 , 6954 , 11579 , 75467 , 236449 , 868422 , 2172671 , 468664 , 49408446 , 29917220 , 975807352 , 62220732 , 2796999979 , 1055912398
n×2
40382262
n×3
60573393
n×4
80764524
n×5
100955655
n÷2
10095565.5
n÷3
6730377
n÷3
5047782.75
n÷5
4038226.2
n2
407681771059161
n3
8.2315560457675E+21
n4
1.6620442645393E+29
n5
3.3558553473113E+36
2 √n
4493.454239224
3 √n
272.30370398699
4 √n
67.033232349514
5 √n
28.908937440626
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20191130
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20191131 can be divided by 8 positive divisors.
The sum of these divisors (counting 20191131) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000001011110011011
3
Ternary
1101222211000200
4
Quaternary
1031001132123
5
Quinary
20132104011
6
Senary
2000433243
8
Octal
115013633
10
Decimal
20191131
12
Duodecimal
6918823
16
Hexadecimal
134179b
20
Vigesimal
663hgb
36
Base36
c0rkr
md5
7bef82adc81e5169239d9d986f268e54
sha1
4a08079bc13a687b58c511397ab17f5658011c73
sha256
dc5c5738913d6b9c0c580ad753e23573618fbab00ffde9ea2b5ea784cef60c0e
sha512
5bf5bcd06d0218a3a25c3827188d546cb2bdc8308e9b02dcebcb0bca2d8d06f02574f632855d2f0abdbb047dd3ac1b07d36aa1dfa08324ad036ab8edf735b4b2
ripemd-160
04c6dad1e62899f42e44018396cbad8a81b825a7
Diameter
40382262
Circumference
126864617.63454
Area
1.2807700569619E+15
Volume
3.4480261334661E+22
Surface area
5.1230802278477E+15
Circumference
126864617.63454
Perimeter
80764524
Area
407681771059161
Diagonal
28554571.299852
Surface area
2446090626354966
Volume
8.2315560457675E+21
Space diagonal
34972064.754279
Perimeter
60573393
Area
1.7653138519853E+14
Altitude
17486032.377139
Surface area
1.7653138519853E+14
Volume
9.7009818327989E+20
Height
9518190.4332839