20139831 is an odd 8-digits composite number following 20139830
and preceding 20139832 . In scientific notation, it is written as 2.0139831 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13405824 positive integers (up to 20139831) that are relatively prime to 20139831.
20139831 has 8 divisors, whose sum is 22412160
The reverse of 20139831 is 13893102
Previous prime number is 863
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred thirty-nine thousand eight hundred thirty-one
Scientific notation
2.0139831 × 10^7
Engineering notation
2.0139831 × 10^6
Prime Factorization
9 × 863 × 2593
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20139831
Product of the distinct prime numbers
The prime factorization of 20139831 is 9 × 863 × 2593.
Since it has a total of 3 prime factors.
5 , 7 , 34 , 68 , 95 , 1 , 8340 , 1147 , 13728 , 72955 , 696410 , 495242 , 7747704 , 879282 , 90110383 , 1908677 , 244934846 , 628902529 , 3075701944 , 3210207432
n×2
40279662
n×3
60419493
n×4
80559324
n×5
100699155
n÷2
10069915.5
n÷3
6713277
n÷3
5034957.75
n÷5
4027966.2
n2
405612792708561
n3
8.1689730965885E+21
n4
1.6452173760884E+29
n5
3.3134399912683E+36
2 √n
4487.742305436
3 √n
272.07289262512
4 √n
66.99061356217
5 √n
28.894232588519
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
-20139830
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 20139831 can be divided by 8 positive divisors.
The sum of these divisors (counting 20139831) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100111100110111
3
Ternary
1101220012122200
4
Quaternary
1030310330313
5
Quinary
20123433311
6
Senary
1555355543
8
Octal
114647467
10
Decimal
20139831
12
Duodecimal
68b2bb3
16
Hexadecimal
1334f37
20
Vigesimal
65h9bb
36
Base36
bznzr
md5
165b6f91d89567696fb2c6dc78df44eb
sha1
fb40c000c0a111b18e58f7c277ca9e48e834b689
sha256
ab456a8408efd5d1299d5e0d9b411aebce8601260b72c60f2c52b0a52d1a7919
sha512
2a9b9a6c5f21e62a4ea79f846165e2ac6c2b0d237fa726af2879b768c769509491d90e95f9ee0f231a69441dc8ce45dde60fe4c848baeda514db2e160c31383b
ripemd-160
944a3a7fdaf52a542a1a701eef6a24832d0324a0
Diameter
40279662
Circumference
126542290.22828
Area
1.2742701697753E+15
Volume
3.4218114490153E+22
Surface area
5.097080679101E+15
Circumference
126542290.22828
Perimeter
80559324
Area
405612792708561
Diagonal
28482022.144102
Surface area
2433676756251366
Volume
8.1689730965885E+21
Space diagonal
34883210.547851
Perimeter
60419493
Area
1.7563549129278E+14
Altitude
17441605.273925
Surface area
1.7563549129278E+14
Volume
9.6272271198803E+20
Height
9494007.3813674