20128591 is an odd 8-digits composite number following 20128590
and preceding 20128592 . In scientific notation, it is written as 2.0128591 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 17211480 positive integers (up to 20128591) that are relatively prime to 20128591.
20128591 has 8 divisors, whose sum is 23059584
The reverse of 20128591 is 19582102
Previous prime number is 443
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred twenty-eight thousand five hundred ninety-one
Scientific notation
2.0128591 × 10^7
Engineering notation
2.0128591 × 10^6
Prime Factorization
7 × 443 × 6491
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20128591
Product of the distinct prime numbers
The prime factorization of 20128591 is 7 × 443 × 6491.
Since it has a total of 3 prime factors.
4 , 1 , 96 , 60 , 146 , 631 , 7577 , 4574 , 5740 , 85648 , 557524 , 63206 , 9747856 , 5372140 , 13471728 , 94201635 , 543446203 , 512643160 , 9318039103 , 4514319144
n×2
40257182
n×3
60385773
n×4
80514364
n×5
100642955
n÷2
10064295.5
n÷3
6709530.3333333
n÷3
5032147.75
n÷5
4025718.2
n2
405160175645281
n3
8.155303465052E+21
n4
1.6415476792891E+29
n5
3.304204184341E+36
2 √n
4486.4898305914
3 √n
272.02226875782
4 √n
66.981264773005
5 √n
28.89100670544
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
-20128590
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 20128591 can be divided by 8 positive divisors.
The sum of these divisors (counting 20128591) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010001101001111
3
Ternary
1101212122020101
4
Quaternary
1030302031033
5
Quinary
20123103331
6
Senary
1555231531
8
Octal
114621517
10
Decimal
20128591
12
Duodecimal
68a85a7
16
Hexadecimal
133234f
20
Vigesimal
65g19b
36
Base36
bzfbj
md5
ab2637b78b96124751a3bea9ccfc2ebd
sha1
2688eb8bcd3522a041ec357a792e063c86bd34dd
sha256
0918dc01e50ebecf818abc00041e4072202d9971b331b105d152a8e6f201cf79
sha512
c2ef82eedfe5a0b1e2af5d7b7ea84470976aaa8ee2a2640dd140658f3be7cbeed6264cf2f2b4d92780ef699adf6bfe5bf2a3f06c39480d8f8af3e20c19df895c
ripemd-160
5aa94639d227030b96e6f55d9b382dedba4ad6be
Diameter
40257182
Circumference
126471667.22543
Area
1.2728482313344E+15
Volume
3.416085527147E+22
Surface area
5.0913929253375E+15
Circumference
126471667.22543
Perimeter
80514364
Area
405160175645281
Diagonal
28466126.383661
Surface area
2430961053871686
Volume
8.155303465052E+21
Space diagonal
34863742.296774
Perimeter
60385773
Area
1.7543950235529E+14
Altitude
17431871.148387
Surface area
1.7543950235529E+14
Volume
9.6111173046207E+20
Height
9488708.7945537