20197581 is an odd 8-digits composite number following 20197580
and preceding 20197582 . In scientific notation, it is written as 2.0197581 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 12672960 positive integers (up to 20197581) that are relatively prime to 20197581.
20197581 has 8 divisors, whose sum is 28514304
The reverse of 20197581 is 18579102
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million one hundred ninety-seven thousand five hundred eighty-one
Scientific notation
2.0197581 × 10^7
Engineering notation
2.0197581 × 10^6
Prime Factorization
3 × 17 × 396031
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20197581
Product of the distinct prime numbers
The prime factorization of 20197581 is 3 × 17 × 396031.
Since it has a total of 3 prime factors.
7 , 4 , 32 , 2 , 523 , 81 , 6804 , 7778 , 20618 , 24508 , 338237 , 598721 , 5790349 , 959188 , 75650832 , 12773443 , 121199085 , 393302144 , 7943029966 , 382799330
n×2
40395162
n×3
60592743
n×4
80790324
n×5
100987905
n÷2
10098790.5
n÷3
6732527
n÷3
5049395.25
n÷5
4039516.2
n2
407942278251561
n3
8.2394472083104E+21
n4
1.6641690238507E+29
n5
3.3612188656916E+36
2 √n
4494.1718925738
3 √n
272.33269645077
4 √n
67.038585102713
5 √n
28.910784180416
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
-20197580
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 20197581 can be divided by 8 positive divisors.
The sum of these divisors (counting 20197581) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000011000011001101
3
Ternary
1102000010212120
4
Quaternary
1031003003031
5
Quinary
20132310311
6
Senary
2000523153
8
Octal
115030315
10
Decimal
20197581
12
Duodecimal
69204b9
16
Hexadecimal
13430cd
20
Vigesimal
664dj1
36
Base36
c0wjx
md5
fa852d48d7e3ad9fd4c09de56cba5064
sha1
c84eb18cc871f0c53f430ca4bef89f8bc8a0cba7
sha256
b37d55d826a6b4ba7912ebfdd5872a7692dba9434b672c20093d876dc0cacc46
sha512
92f739d922af318e7c98fd3396f7429bf3bf40a42cf304cde980d8daf0d35d854aa783ddb07028c5abdbb3197092bc01940f84c326780a1c3883560ddf24e352
ripemd-160
e2e867e7bfa826d5f369a8e05a519df356e0aeff
Diameter
40395162
Circumference
126905144.17977
Area
1.2815884644438E+15
Volume
3.4513315759025E+22
Surface area
5.1263538577751E+15
Circumference
126905144.17977
Perimeter
80790324
Area
407942278251561
Diagonal
28563692.977329
Surface area
2447653669509366
Volume
8.2394472083104E+21
Space diagonal
34983236.481988
Perimeter
60592743
Area
1.7664418812178E+14
Altitude
17491618.240994
Surface area
1.7664418812178E+14
Volume
9.7102816570415E+20
Height
9521230.992443