20131290 is an even 8-digits composite number following 20131289
and preceding 20131291 . In scientific notation, it is written as 2.0131290 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 5368320 positive integers (up to 20131290) that are relatively prime to 20131290.
20131290 has 8 divisors, whose sum is 30868116
The reverse of 20131290 is 09213102
Previous prime number is 45
Is Prime? no
Number parity even
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred thirty-one thousand two hundred ninety
Scientific notation
2.0131290 × 10^7
Engineering notation
2.0131290 × 10^6
Prime Factorization
2 × 45 × 223681
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20131290
Product of the distinct prime numbers
The prime factorization of 20131290 is 2 × 45 × 223681.
Since it has a total of 3 prime factors.
8 , 1 , 30 , 61 , 996 , 409 , 3274 , 6543 , 13042 , 70621 , 217035 , 731864 , 8602943 , 7529418 , 68954906 , 68595772 , 696216323 , 983509714 , 1365396330 , 8635785097
n×2
40262580
n×3
60393870
n×4
80525160
n×5
100656450
n÷2
10065645
n÷3
6710430
n÷3
5032822.5
n÷5
4026258
n2
405268837064100
n3
8.1585844869001E+21
n4
1.6424283029529E+29
n5
3.3064200470952E+36
2 √n
4486.7906124534
3 √n
272.03442651046
4 √n
66.983510003981
5 √n
28.891781450628
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
-20131289
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 20131290 can be divided by 8 positive divisors.
The sum of these divisors (counting 20131290) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010110111011010
3
Ternary
1101212202221100
4
Quaternary
1030302313122
5
Quinary
20123200130
6
Senary
1555252230
8
Octal
114626732
10
Decimal
20131290
12
Duodecimal
68aa076
16
Hexadecimal
1332dda
20
Vigesimal
65g84a
36
Base36
bzhei
md5
2c886df03c6b73910e8063858f9eb936
sha1
5bdb5447d2017454ced48cadb7a79cb22130de47
sha256
d008a03203f9e3858e3a107a6b044510b8e6fb99e1dbe7cbf3338bce2c8e1051
sha512
8f0c681749280107a834f0be452dc14b2c203d1728d16e9c8752ced2a11bcaa73ba9aaf6004ebbfa6c4ee074bbcb827bfa75af3a7704d080f82d0c3c2da41580
ripemd-160
1a83fa98c3109c9c23ae4501b7513b85c9d5a0a7
Diameter
40262580
Circumference
126488625.54257
Area
1.2731896012495E+15
Volume
3.417459878365E+22
Surface area
5.0927584049978E+15
Circumference
126488625.54257
Perimeter
80525160
Area
405268837064100
Diagonal
28469943.346066
Surface area
2431613022384600
Volume
8.1585844869001E+21
Space diagonal
34868417.101903
Perimeter
60393870
Area
1.7548655412984E+14
Altitude
17434208.550952
Surface area
1.7548655412984E+14
Volume
9.6149840259508E+20
Height
9489981.1153553