20172839 is an odd 8-digits composite number following 20172838
and preceding 20172840 . In scientific notation, it is written as 2.0172839 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 19907136 positive integers (up to 20172839) that are relatively prime to 20172839.
20172839 has 8 divisors, whose sum is 20440560
The reverse of 20172839 is 93827102
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred seventy-two thousand eight hundred thirty-nine
Scientific notation
2.0172839 × 10^7
Engineering notation
2.0172839 × 10^6
Prime Factorization
137 × 229 × 643
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20172839
Product of the distinct prime numbers
The prime factorization of 20172839 is 137 × 229 × 643.
Since it has a total of 3 prime factors.
3 , 1 , 37 , 85 , 443 , 676 , 3646 , 450 , 58660 , 62396 , 254881 , 280889 , 1513198 , 5778254 , 10400923 , 22974692 , 625428869 , 453849920 , 5180132949 , 8389127473
n×2
40345678
n×3
60518517
n×4
80691356
n×5
100864195
n÷2
10086419.5
n÷3
6724279.6666667
n÷3
5043209.75
n÷5
4034567.8
n2
406943433319921
n3
8.20920436247E+21
n4
1.6560295792221E+29
n5
3.3406818080884E+36
2 √n
4491.4183728528
3 √n
272.22144865962
4 √n
67.018045128554
5 √n
28.903697575523
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
-20172838
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 20172839 can be divided by 8 positive divisors.
The sum of these divisors (counting 20172839) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111101000000100111
3
Ternary
1101221212221012
4
Quaternary
1030331000213
5
Quinary
20131012324
6
Senary
2000212435
8
Octal
114750047
10
Decimal
20172839
12
Duodecimal
690a11b
16
Hexadecimal
133d027
20
Vigesimal
661c1j
36
Base36
c0dgn
md5
ce55fcb1faf0bc2f4352079ebd64fa66
sha1
57b9f2ac51d288a529cf97ccce9fbf227d5cb5f2
sha256
e44ee93175f1eb769e4d109d0a3ffc517a9350e2c2d8ca779100a0eb67007170
sha512
444717841380c48a22542fe39d2ac3f2fcb4cf14e1e2d529101a4611c95e675f82031e9447f4f0b96e2bb0112cd69ed1dca468e4b184d4e6ca1253be8105782c
ripemd-160
f6c4db0a4116cbd31ee731d44a8800341e188dc1
Diameter
40345678
Circumference
126749685.6089
Area
1.2784505005445E+15
Volume
3.4386634822604E+22
Surface area
5.1138020021779E+15
Circumference
126749685.6089
Perimeter
80691356
Area
406943433319921
Diagonal
28528702.505369
Surface area
2441660599919526
Volume
8.20920436247E+21
Space diagonal
34940382.080907
Perimeter
60518517
Area
1.7621167557916E+14
Altitude
17470191.040453
Surface area
1.7621167557916E+14
Volume
9.6746401214145E+20
Height
9509567.5017896