20123845 is an odd 8-digits composite number following 20123844
and preceding 20123846 . In scientific notation, it is written as 2.0123845 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 13799184 positive integers (up to 20123845) that are relatively prime to 20123845.
20123845 has 4 divisors, whose sum is 20698848
The reverse of 20123845 is 54832102
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty-three thousand eight hundred forty-five
Scientific notation
2.0123845 × 10^7
Engineering notation
2.0123845 × 10^6
Prime Factorization
35 × 574967
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20123845
Product of the distinct prime numbers
The prime factorization of 20123845 is 35 × 574967.
Since it has a total of 2 prime factors.
4 , 10 , 29 , 36 , 811 , 24 , 9470 , 7320 , 99342 , 67662 , 205632 , 177417 , 5103979 , 6895165 , 87857560 , 31357654 , 933775129 , 983200380 , 6311068209 , 7135417247
n×2
40247690
n×3
60371535
n×4
80495380
n×5
100619225
n÷2
10061922.5
n÷3
6707948.3333333
n÷3
5030961.25
n÷5
4024769
n2
404969137584025
n3
8.1495361545246E+21
n4
1.6400000239555E+29
n5
3.3003106282077E+36
2 √n
4485.9608781174
3 √n
272.0008875764
4 √n
66.977316145972
5 √n
28.889644169417
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20123844
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20123845 can be divided by 4 positive divisors.
The sum of these divisors (counting 20123845) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110001000011000101
3
Ternary
1101212101201121
4
Quaternary
1030301003011
5
Quinary
20122430340
6
Senary
1555153541
8
Octal
114610305
10
Decimal
20123845
12
Duodecimal
68a58b1
16
Hexadecimal
13310c5
20
Vigesimal
65f9c5
36
Base36
bzbnp
md5
90052499a8bcb56963c21c9766b044f6
sha1
9744a84d63d5305a0c43203c3fbd7abe64c6a126
sha256
35fce5d0af3934f4a0ae7872d77f8ede4e513058984fb3b63a82da1f78de03c6
sha512
33eb3797eba3f992b41c486100b08074938f6348756c01549519faaad42f9a336b188a292db5017c20b88e6600cfd04d5218651fd6911c6c37cff97b25302ec4
ripemd-160
61280251c5bd8103c62c28dea76dc82ab36566b9
Diameter
40247690
Circumference
126441847.22796
Area
1.2722480675646E+15
Volume
3.4136697217625E+22
Surface area
5.0889922702583E+15
Circumference
126441847.22796
Perimeter
80495380
Area
404969137584025
Diagonal
28459414.526094
Surface area
2429814825504150
Volume
8.1495361545246E+21
Space diagonal
34855521.983641
Perimeter
60371535
Area
1.7535678044822E+14
Altitude
17427760.99182
Surface area
1.7535678044822E+14
Volume
9.6043204639821E+20
Height
9486471.508698