20857538 is an even 8-digits composite number following 20857537
and preceding 20857539 . In scientific notation, it is written as 2.0857538 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 9060096 positive integers (up to 20857538) that are relatively prime to 20857538.
20857538 has 16 divisors, whose sum is 35675640
The reverse of 20857538 is 83575802
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million eight hundred fifty-seven thousand five hundred thirty-eight
Scientific notation
2.0857538 × 10^7
Engineering notation
2.0857538 × 10^6
Prime Factorization
2 × 17 × 13 × 47189
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20857538
Product of the distinct prime numbers
The prime factorization of 20857538 is 2 × 17 × 13 × 47189.
Since it has a total of 4 prime factors.
6 , 3 , 48 , 30 , 155 , 434 , 4137 , 7878 , 81033 , 99976 , 822995 , 188993 , 1969605 , 5852925 , 36283742 , 44445657 , 462779067 , 298356853 , 2391345835 , 6927199342
n×2
41715076
n×3
62572614
n×4
83430152
n×5
104287690
n÷2
10428769
n÷3
6952512.6666667
n÷3
5214384.5
n÷5
4171507.6
n2
435036891421444
n3
9.0737984942246E+21
n4
1.8925709689763E+29
n5
3.9474370903121E+36
2 √n
4567.0053645688
3 √n
275.26712556335
4 √n
67.579622406231
5 √n
29.097294435463
1 , 2 , 13 , 17 , 26 , 34 , 221 , 442 , 47189 , 94378 , 613457 , 802213 , 1226914 , 1604426 , 10428769 , 20857538
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
-20857537
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 20857538 can be divided by 16 positive divisors.
The sum of these divisors (counting 20857538) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111100100001011000010
3
Ternary
1110020200011102
4
Quaternary
1033210023002
5
Quinary
20314420123
6
Senary
2023014402
8
Octal
117441302
10
Decimal
20857538
12
Duodecimal
6b9a402
16
Hexadecimal
13e42c2
20
Vigesimal
6a73gi
36
Base36
cf1s2
md5
f52f2641e9c556eab334f29e750451ff
sha1
929aab64b91449c56c6b39923a1fc25b70800142
sha256
ede6378e64339c21abd31de7f369513e6f5028dcf1533c86930c22cdea9fc612
sha512
fbaf97af8bfe9222ca72f7110de7442b6779ab9825ebe6e8f059b8145519e2632c90169e994976666a5ba19cd79f768f014452b2dd920327a03d94bbfea6710a
ripemd-160
0dbd1cbdb523d77acf7fed89431b7aa9ccdd45fe
Diameter
41715076
Circumference
131051776.30554
Area
1.3667087021301E+15
Volume
3.8008238252814E+22
Surface area
5.4668348085206E+15
Circumference
131051776.30554
Perimeter
83430152
Area
435036891421444
Diagonal
29497013.117312
Surface area
2610221348528664
Volume
9.0737984942246E+21
Space diagonal
36126315.536799
Perimeter
62572614
Area
1.8837649977719E+14
Altitude
18063157.768399
Surface area
1.8837649977719E+14
Volume
1.0693574077311E+21
Height
9832337.7057707