20157731 is an odd 8-digits composite number following 20157730
and preceding 20157732 . In scientific notation, it is written as 2.0157731 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 18161920 positive integers (up to 20157731) that are relatively prime to 20157731.
20157731 has 8 divisors, whose sum is 22186224
The reverse of 20157731 is 13775102
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred fifty-seven thousand seven hundred thirty-one
Scientific notation
2.0157731 × 10^7
Engineering notation
2.0157731 × 10^6
Prime Factorization
11 × 113 × 16217
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20157731
Product of the distinct prime numbers
The prime factorization of 20157731 is 11 × 113 × 16217.
Since it has a total of 3 prime factors.
4 , 5 , 44 , 7 , 109 , 26 , 9676 , 4600 , 44869 , 52731 , 249877 , 452128 , 6807670 , 5472475 , 41343171 , 68582094 , 63710672 , 65010188 , 3128732292 , 692221393
n×2
40315462
n×3
60473193
n×4
80630924
n×5
100788655
n÷2
10078865.5
n÷3
6719243.6666667
n÷3
5039432.75
n÷5
4031546.2
n2
406334119068361
n3
8.190773868302E+21
n4
1.6510741631906E+29
n5
3.3281908842646E+36
2 √n
4489.7361837863
3 √n
272.15347361681
4 √n
67.005493683625
5 √n
28.899366921443
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
-20157730
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 20157731 can be divided by 8 positive divisors.
The sum of these divisors (counting 20157731) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001010100100011
3
Ternary
1101221010012122
4
Quaternary
1030321110203
5
Quinary
20130021411
6
Senary
2000014455
8
Octal
114712443
10
Decimal
20157731
12
Duodecimal
690142b
16
Hexadecimal
1339523
20
Vigesimal
65je6b
36
Base36
c01sz
md5
5fc2f40cd4ff05ca8a8ecea3c1a942a3
sha1
11cb295b8816dc2885ff397f22b729694f3a95df
sha256
3f90f2bbeb7fca845919a38064efd65e338fb7a252a782c6d684bdc90371ad4c
sha512
88a0f5964de8e5fd77a7143ebb180560e0f6b5cf5112484fca757784eb1e0b5c594010a5b39f1aeb45e39b2d611af6efacf1e94d8a34ebdc58665274544ff803
ripemd-160
462e7f798627a7e4e3bd2e8ef5b4eff071badb76
Diameter
40315462
Circumference
126654759.24528
Area
1.276536283368E+15
Volume
3.4309433349164E+22
Surface area
5.1061451334722E+15
Circumference
126654759.24528
Perimeter
80630924
Area
406334119068361
Diagonal
28507336.566869
Surface area
2438004714410166
Volume
8.190773868302E+21
Space diagonal
34914214.257306
Perimeter
60473193
Area
1.7594783476879E+14
Altitude
17457107.128653
Surface area
1.7594783476879E+14
Volume
9.6529195757365E+20
Height
9502445.5222895