20351389 is an odd 8-digits composite number following 20351388
and preceding 20351390 . In scientific notation, it is written as 2.0351389 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 19411920 positive integers (up to 20351389) that are relatively prime to 20351389.
20351389 has 8 divisors, whose sum is 21295872
The reverse of 20351389 is 98315302
Previous prime number is 431
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million three hundred fifty-one thousand three hundred eighty-nine
Scientific notation
2.0351389 × 10^7
Engineering notation
2.0351389 × 10^6
Prime Factorization
23 × 431 × 2053
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20351389
Product of the distinct prime numbers
The prime factorization of 20351389 is 23 × 431 × 2053.
Since it has a total of 3 prime factors.
2 , 9 , 46 , 43 , 64 , 125 , 3711 , 7494 , 81257 , 26900 , 555224 , 682085 , 3502545 , 3254153 , 71190958 , 79578600 , 368161660 , 498944813 , 9972670986 , 6380842790
n×2
40702778
n×3
61054167
n×4
81405556
n×5
101756945
n÷2
10175694.5
n÷3
6783796.3333333
n÷3
5087847.25
n÷5
4070277.8
n2
414179034229321
n3
8.4291186412452E+21
n4
1.7154427239513E+29
n5
3.4911642182353E+36
2 √n
4511.251378498
3 √n
273.02223561771
4 √n
67.165849793612
5 √n
28.954682768807
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
-20351388
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 20351389 can be divided by 8 positive divisors.
The sum of these divisors (counting 20351389) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101101000100110011101
3
Ternary
1102021221212011
4
Quaternary
1031220212131
5
Quinary
20202221024
6
Senary
2004111221
8
Octal
115504635
10
Decimal
20351389
12
Duodecimal
6995511
16
Hexadecimal
136899d
20
Vigesimal
673i99
36
Base36
c478d
md5
2ee7fcd4542a361c84e1ad5e4bb58883
sha1
1f4c123952756d59545379986b3de504f332d3b0
sha256
66c746ab766fe11bc432cfddd03c84d597629f3fadbfc6bc87a9cb1eb08c3f45
sha512
6d45967855e34a66eaabd8f8e36d75170de6b1cb20d969c845b7167a2e127ae740f6915cbde03b532c1a92995a45b152998c6865b8d6cb8c26a96200bad1fdc0
ripemd-160
1730c6b1ee3b73601b2bfd321ab1b2a63717331f
Diameter
40702778
Circumference
127871548.3455
Area
1.3011818112058E+15
Volume
3.530780959943E+22
Surface area
5.204727244823E+15
Circumference
127871548.3455
Perimeter
81405556
Area
414179034229321
Diagonal
28781210.336931
Surface area
2485074205375926
Volume
8.4291186412452E+21
Space diagonal
35249639.752598
Perimeter
61054167
Area
1.7934478267875E+14
Altitude
17624819.876299
Surface area
1.7934478267875E+14
Volume
9.9338115844174E+20
Height
9593736.7789769