20128437 is an odd 8-digits composite number following 20128436
and preceding 20128438 . In scientific notation, it is written as 2.0128437 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 11501928 positive integers (up to 20128437) that are relatively prime to 20128437.
20128437 has 8 divisors, whose sum is 25560000
The reverse of 20128437 is 73482102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred twenty-eight thousand four hundred thirty-seven
Scientific notation
2.0128437 × 10^7
Engineering notation
2.0128437 × 10^6
Prime Factorization
9 × 7 × 319499
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20128437
Product of the distinct prime numbers
The prime factorization of 20128437 is 9 × 7 × 319499.
Since it has a total of 3 prime factors.
7 , 4 , 39 , 87 , 858 , 742 , 8491 , 5668 , 27699 , 82909 , 276378 , 481791 , 2749877 , 7653464 , 46637884 , 42148653 , 461154933 , 896503798 , 8906303758 , 3003913190
n×2
40256874
n×3
60385311
n×4
80513748
n×5
100642185
n÷2
10064218.5
n÷3
6709479
n÷3
5032109.25
n÷5
4025687.4
n2
405153976062969
n3
8.155116282483E+21
n4
1.6414974431963E+29
n5
3.3040777871038E+36
2 √n
4486.4726679208
3 √n
272.02157502594
4 √n
66.981136657426
5 √n
28.890962497391
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
-20128436
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 20128437 can be divided by 8 positive divisors.
The sum of these divisors (counting 20128437) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010001010110101
3
Ternary
1101212122000200
4
Quaternary
1030302022311
5
Quinary
20123102222
6
Senary
1555231113
8
Octal
114621265
10
Decimal
20128437
12
Duodecimal
68a8499
16
Hexadecimal
13322b5
20
Vigesimal
65g11h
36
Base36
bzf79
md5
2f799b8470c46eb604791fe0c0dcbfcc
sha1
c93c9300b51a5259e98ef39893a2ab64fc766f52
sha256
b75f6b3ec4e3d261d82e28dad897830473d81e1dc1a4147c6ce8345eea3e997d
sha512
11bd3c2448393972eb5a46ba2afe6fbe1b04d1a1f683a18360b7e6906a33e1d3ebca5cd328edbe7afc8a8dba2ebfc12880161454c2cf5f1315cb3e45b2a1f13b
ripemd-160
0d681a29c96ab8d1ea0caa6df84b34bf79f3ea13
Diameter
40256874
Circumference
126470699.61489
Area
1.2728287547721E+15
Volume
3.4160071202959E+22
Surface area
5.0913150190885E+15
Circumference
126470699.61489
Perimeter
80513748
Area
405153976062969
Diagonal
28465908.594772
Surface area
2430923856377814
Volume
8.155116282483E+21
Space diagonal
34863475.560949
Perimeter
60385311
Area
1.754368178574E+14
Altitude
17431737.780475
Surface area
1.754368178574E+14
Volume
9.6108967078476E+20
Height
9488636.1982575