20121589 is an odd 8-digits composite number following 20121588
and preceding 20121590 . In scientific notation, it is written as 2.0121589 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 18954000 positive integers (up to 20121589) that are relatively prime to 20121589.
20121589 has 8 divisors, whose sum is 21301280
The reverse of 20121589 is 98512102
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred twenty-one thousand five hundred eighty-nine
Scientific notation
2.0121589 × 10^7
Engineering notation
2.0121589 × 10^6
Prime Factorization
19 × 181 × 5851
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121589
Product of the distinct prime numbers
The prime factorization of 20121589 is 19 × 181 × 5851.
Since it has a total of 3 prime factors.
4 , 10 , 42 , 93 , 807 , 950 , 4472 , 982 , 63962 , 44044 , 296887 , 243870 , 6336725 , 540390 , 17159604 , 64490466 , 713997886 , 833671818 , 9501422579 , 3651166939
n×2
40243178
n×3
60364767
n×4
80486356
n×5
100607945
n÷2
10060794.5
n÷3
6707196.3333333
n÷3
5030397.25
n÷5
4024317.8
n2
404878343884921
n3
8.146795630653E+21
n4
1.63926473347E+29
n5
3.2984611229077E+36
2 √n
4485.7094199246
3 √n
271.99072290302
4 √n
66.975438930436
5 √n
28.888996400961
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
-20121588
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 20121589 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121589) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011111110101
3
Ternary
1101212021122001
4
Quaternary
1030300133311
5
Quinary
20122342324
6
Senary
1555135301
8
Octal
114603765
10
Decimal
20121589
12
Duodecimal
68a4531
16
Hexadecimal
13307f5
20
Vigesimal
65f3j9
36
Base36
bz9x1
md5
aef35b00cb3707996f623876040faed2
sha1
6a16c623aaa9401d855a15a5bca0cc9d567937e7
sha256
72abdbefa4021bb721d829fc179a1446bb7544301f563dcb46df0207946d0db7
sha512
dc2ebf358309fed5560f9e145acfa59aec772c091785c2ab8770a9c5b464eaf010da9f3018125c15d21ec1e3c1e85ac2a70221d30f4e6fc39ce64b25bfb8ae69
ripemd-160
a8cd44c642c0a62399fe24c4acf8950e6a12bd5b
Diameter
40243178
Circumference
126427672.36191
Area
1.2719628307465E+15
Volume
3.4125217738076E+22
Surface area
5.0878513229859E+15
Circumference
126427672.36191
Perimeter
80486356
Area
404878343884921
Diagonal
28456224.060297
Surface area
2429270063309526
Volume
8.146795630653E+21
Space diagonal
34851614.477019
Perimeter
60364767
Area
1.7531746562326E+14
Altitude
17425807.23851
Surface area
1.7531746562326E+14
Volume
9.6010907256262E+20
Height
9485408.0200991