20157638 is an even 8-digits composite number following 20157637
and preceding 20157639 . In scientific notation, it is written as 2.0157638 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 10078818 positive integers (up to 20157638) that are relatively prime to 20157638.
20157638 has 4 divisors, whose sum is 30236460
The reverse of 20157638 is 83675102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred fifty-seven thousand six hundred thirty-eight
Scientific notation
2.0157638 × 10^7
Engineering notation
2.0157638 × 10^6
Prime Factorization
2 × 10078819
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20157638
Product of the distinct prime numbers
The prime factorization of 20157638 is 2 × 10078819.
Since it has a total of 2 prime factors.
8 , 1 , 92 , 8 , 696 , 311 , 8027 , 5370 , 55838 , 68282 , 690676 , 313237 , 1963649 , 5582076 , 78721424 , 48235028 , 256087411 , 114330151 , 6218862747 , 4225841231
n×2
40315276
n×3
60472914
n×4
80630552
n×5
100788190
n÷2
10078819
n÷3
6719212.6666667
n÷3
5039409.5
n÷5
4031527.6
n2
406330369739044
n3
8.1906605016058E+21
n4
1.6510436937227E+29
n5
3.3281141100245E+36
2 √n
4489.7258268184
3 √n
272.15305507909
4 √n
67.005416399112
5 √n
28.899340255286
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
-20157637
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 20157638 can be divided by 4 positive divisors.
The sum of these divisors (counting 20157638) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111001010011000110
3
Ternary
1101221010002012
4
Quaternary
1030321103012
5
Quinary
20130021023
6
Senary
2000014222
8
Octal
114712306
10
Decimal
20157638
12
Duodecimal
6901372
16
Hexadecimal
13394c6
20
Vigesimal
65je1i
36
Base36
c01qe
md5
c0a5e933bc8c0524165534a4bbec4fd7
sha1
27a34ffa880d7cbbcec77e6a34430cc8a50715db
sha256
ca80ca046073803408c04d3e4f8d3c6a6dfeedca0d1e15137b7bdfa804f2f1d3
sha512
33b421de2fb5504786beae117045a4f5b622e5327032352ca7f94ff8a1fec20115130e020fa7b0403561b497bbc572c9976f4f5294695552ad1884026b9cd446
ripemd-160
8ab7c059fbeb8e722de21a55b25a7d7c7cf34871
Diameter
40315276
Circumference
126654174.90904
Area
1.2765245045026E+15
Volume
3.4308958479857E+22
Surface area
5.1060980180104E+15
Circumference
126654174.90904
Perimeter
80630552
Area
406330369739044
Diagonal
28507205.045007
Surface area
2437982218434264
Volume
8.1906605016058E+21
Space diagonal
34914053.176581
Perimeter
60472914
Area
1.7594621126157E+14
Altitude
17457026.588291
Surface area
1.7594621126157E+14
Volume
9.6527859718038E+20
Height
9502401.6816691