20157838 is an even 8-digits composite number following 20157837
and preceding 20157839 . In scientific notation, it is written as 2.0157838 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 10078918 positive integers (up to 20157838) that are relatively prime to 20157838.
20157838 has 4 divisors, whose sum is 30236760
The reverse of 20157838 is 83875102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred fifty-seven thousand eight hundred thirty-eight
Scientific notation
2.0157838 × 10^7
Engineering notation
2.0157838 × 10^6
Prime Factorization
2 × 10078919
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20157838
Product of the distinct prime numbers
The prime factorization of 20157838 is 2 × 10078919.
Since it has a total of 2 prime factors.
6 , 8 , 11 , 81 , 638 , 634 , 575 , 5622 , 41588 , 1878 , 843671 , 316077 , 825638 , 8290009 , 21754497 , 93046191 , 623844521 , 369958685 , 3154111840 , 5618744676
n×2
40315676
n×3
60473514
n×4
80631352
n×5
100789190
n÷2
10078919
n÷3
6719279.3333333
n÷3
5039459.5
n÷5
4031567.6
n2
406338432834244
n3
8.1909043022466E+21
n4
1.6511092199819E+29
n5
3.3282792176701E+36
2 √n
4489.7480998381
3 √n
272.15395515861
4 √n
67.005582602035
5 √n
28.899397601738
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
-20157837
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 20157838 can be divided by 4 positive divisors.
The sum of these divisors (counting 20157838) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111001010110001110
3
Ternary
1101221010100121
4
Quaternary
1030321112032
5
Quinary
20130022323
6
Senary
2000015154
8
Octal
114712616
10
Decimal
20157838
12
Duodecimal
69014ba
16
Hexadecimal
133958e
20
Vigesimal
65jebi
36
Base36
c01vy
md5
2492734e2605f9fd8291a609298aa92e
sha1
8b52723237bbc35e85afde143c5c797997069d1e
sha256
d8226804b6df6a9ab894c5cb2152dfc4d6105f1f29081ca1ad1430c08c237a27
sha512
df2c22886bc1dfbee340cf25c804fec39740aae617f384a06ce71e39a54a536fff9932044e30193f9b096c741b3674c99e3e5f04290a58c11f93ed4e83d5f860
ripemd-160
f7b1858f6ebb3dfcd2b649c28de5ed1299f0e4d9
Diameter
40315676
Circumference
126655431.54611
Area
1.2765498354633E+15
Volume
3.4309979709593E+22
Surface area
5.106199341853E+15
Circumference
126655431.54611
Perimeter
80631352
Area
406338432834244
Diagonal
28507487.88772
Surface area
2438030597005464
Volume
8.1909043022466E+21
Space diagonal
34914399.586743
Perimeter
60473514
Area
1.7594970268421E+14
Altitude
17457199.793371
Surface area
1.7594970268421E+14
Volume
9.6530732936144E+20
Height
9502495.9625732