20157815 is an odd 8-digits composite number following 20157814
and preceding 20157816 . In scientific notation, it is written as 2.0157815 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 16126248 positive integers (up to 20157815) that are relatively prime to 20157815.
20157815 has 4 divisors, whose sum is 24189384
The reverse of 20157815 is 51875102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred fifty-seven thousand eight hundred fifteen
Scientific notation
2.0157815 × 10^7
Engineering notation
2.0157815 × 10^6
Prime Factorization
5 × 4031563
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20157815
Product of the distinct prime numbers
The prime factorization of 20157815 is 5 × 4031563.
Since it has a total of 2 prime factors.
10 , 9 , 57 , 49 , 12 , 650 , 9750 , 2668 , 67622 , 36747 , 826982 , 586943 , 2240463 , 2329397 , 82954529 , 86876199 , 917354603 , 175425078 , 3916568853 , 5039333912
n×2
40315630
n×3
60473445
n×4
80631260
n×5
100789075
n÷2
10078907.5
n÷3
6719271.6666667
n÷3
5039453.75
n÷5
4031563
n2
406337505574225
n3
8.1908762649267E+21
n4
1.6511016843628E+29
n5
3.3282602299574E+36
2 √n
4489.7455384465
3 √n
272.15385164977
4 √n
67.005563488762
5 √n
28.899391006919
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20157814
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20157815 can be divided by 4 positive divisors.
The sum of these divisors (counting 20157815) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111001010101110111
3
Ternary
1101221010022202
4
Quaternary
1030321111313
5
Quinary
20130022230
6
Senary
2000015115
8
Octal
114712567
10
Decimal
20157815
12
Duodecimal
690149b
16
Hexadecimal
1339577
20
Vigesimal
65jeaf
36
Base36
c01vb
md5
53fec2bd772a475a4c021b0da66d30f0
sha1
8304fdda7e3e3f07673539b8ee98fd54f24e4c16
sha256
4307675664f1ae80cb45eeffe59ccd58b37c8168db10cd061b1104b724130212
sha512
f8f863ba454806beccaa2fb11afc6cec0a0d464fa657dc9c6717f1369236eef6e685cac70e7bb0519568c3530d54f6ad1dddbbb2b9a219596161a73d54daf2b1
ripemd-160
abf76d827614adf37cb2032a513ebfa2ac96259f
Diameter
40315630
Circumference
126655287.03284
Area
1.27654692239E+15
Volume
3.4309862267142E+22
Surface area
5.1061876895599E+15
Circumference
126655287.03284
Perimeter
80631260
Area
406337505574225
Diagonal
28507455.360808
Surface area
2438025033445350
Volume
8.1908762649267E+21
Space diagonal
34914359.749574
Perimeter
60473445
Area
1.7594930116884E+14
Altitude
17457179.874787
Surface area
1.7594930116884E+14
Volume
9.653040251316E+20
Height
9502485.1202693