20157997 is an odd 8-digits composite number following 20157996
and preceding 20157998 . In scientific notation, it is written as 2.0157997 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 20148480 positive integers (up to 20157997) that are relatively prime to 20157997.
20157997 has 4 divisors, whose sum is 20167516
The reverse of 20157997 is 79975102
Previous prime number is 3181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million one hundred fifty-seven thousand nine hundred ninety-seven
Scientific notation
2.0157997 × 10^7
Engineering notation
2.0157997 × 10^6
Prime Factorization
3181 × 6337
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20157997
Product of the distinct prime numbers
The prime factorization of 20157997 is 3181 × 6337.
Since it has a total of 2 prime factors.
9 , 5 , 25 , 47 , 532 , 792 , 4077 , 5478 , 63974 , 98318 , 463698 , 492648 , 9677231 , 1099528 , 67577075 , 79041932 , 600746741 , 405718184 , 925687044 , 4651749840
n×2
40315994
n×3
60473991
n×4
80631988
n×5
100789985
n÷2
10078998.5
n÷3
6719332.3333333
n÷3
5039499.25
n÷5
4031599.4
n2
406344843052009
n3
8.1910981272079E+21
n4
1.6511613147496E+29
n5
3.3284104829239E+36
2 √n
4489.76580681
3 √n
272.15467071757
4 √n
67.005714732476
5 √n
28.899443191843
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
-20157996
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 20157997 can be divided by 4 positive divisors.
The sum of these divisors (counting 20157997) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111001011000101101
3
Ternary
1101221010120111
4
Quaternary
1030321120231
5
Quinary
20130023442
6
Senary
2000020021
8
Octal
114713055
10
Decimal
20157997
12
Duodecimal
6901611
16
Hexadecimal
133962d
20
Vigesimal
65jejh
36
Base36
c020d
md5
be4d188a7c31fa0266a6f05fc9417ec6
sha1
5e2332b9fbb0e14f671a173500355bd9dde43ddc
sha256
f7c28a055580585ffa38f27f67859abf69b00c35f1befb77b9fdb1891faa94d7
sha512
1739e2e6f73f8d45b8c39219848b41930d9b77a9887f43ab2f65fb04cf736b694a7001d2499a1458ac893ff8b7b479743da8ed43b18efd599a29cb10bcf8fb1a
ripemd-160
6e3182a5983cbd758bf6e4397f8d783b8db68d9f
Diameter
40315994
Circumference
126656430.57257
Area
1.2765699737563E+15
Volume
3.4310791601692E+22
Surface area
5.1062798950252E+15
Circumference
126656430.57257
Perimeter
80631988
Area
406344843052009
Diagonal
28507712.747676
Surface area
2438069058312054
Volume
8.1910981272079E+21
Space diagonal
34914674.982821
Perimeter
60473991
Area
1.7595247838992E+14
Altitude
17457337.491411
Surface area
1.7595247838992E+14
Volume
9.6533017185219E+20
Height
9502570.9158921