20131389 is an odd 8-digits composite number following 20131388
and preceding 20131390 . In scientific notation, it is written as 2.0131389 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 13380768 positive integers (up to 20131389) that are relatively prime to 20131389.
20131389 has 16 divisors, whose sum is 29913600
The reverse of 20131389 is 98313102
Previous prime number is 409
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred thirty-one thousand three hundred eighty-nine
Scientific notation
2.0131389 × 10^7
Engineering notation
2.0131389 × 10^6
Prime Factorization
3 × 9 × 409 × 1823
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20131389
Product of the distinct prime numbers
The prime factorization of 20131389 is 3 × 9 × 409 × 1823.
Since it has a total of 4 prime factors.
8 , 7 , 80 , 31 , 550 , 471 , 6028 , 4063 , 86366 , 79235 , 897906 , 106521 , 4154094 , 1819824 , 26807789 , 42909733 , 447112065 , 539433419 , 7905624416 , 5221397331
n×2
40262778
n×3
60394167
n×4
80525556
n×5
100656945
n÷2
10065694.5
n÷3
6710463
n÷3
5032847.25
n÷5
4026277.8
n2
405272823069321
n3
8.1587048523367E+21
n4
1.6424606111858E+29
n5
3.3065013480959E+36
2 √n
4486.8016448245
3 √n
272.03487243922
4 √n
66.983592355326
5 √n
28.891809866897
1 , 3 , 9 , 27 , 409 , 1227 , 1823 , 3681 , 5469 , 11043 , 16407 , 49221 , 745607 , 2236821 , 6710463 , 20131389
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20131388
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20131389 can be divided by 16 positive divisors.
The sum of these divisors (counting 20131389) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110010111000111101
3
Ternary
1101212210002000
4
Quaternary
1030302320331
5
Quinary
20123201024
6
Senary
1555252513
8
Octal
114627075
10
Decimal
20131389
12
Duodecimal
68aa139
16
Hexadecimal
1332e3d
20
Vigesimal
65g899
36
Base36
bzhh9
md5
efbb2bc2ab14cc263aef7b74035f2fcf
sha1
a6b54df0f643203510ff580ecddf23733083cda7
sha256
739279a45837087502a2380e1b3142550bdd08a7ed3ad920c0cc546067bec287
sha512
ffe84c0f03c2e9980848068a458281306fdde8888c7eb470853d6aa5131cf293eee8295bc68771f7ad454fa1a926e36249730f1c9419880ceef726cb278bd7ff
ripemd-160
5e65a3c9a3f57c4a1ff49b4f329af5a484dd2db5
Diameter
40262778
Circumference
126489247.57792
Area
1.2732021236542E+15
Volume
3.4175102969211E+22
Surface area
5.0928084946167E+15
Circumference
126489247.57792
Perimeter
80525556
Area
405272823069321
Diagonal
28470083.353209
Surface area
2431636938415926
Volume
8.1587048523367E+21
Space diagonal
34868588.574933
Perimeter
60394167
Area
1.7548828012073E+14
Altitude
17434294.287467
Surface area
1.7548828012073E+14
Volume
9.6151258779781E+20
Height
9490027.7844028