20123857 is an odd 8-digits composite number following 20123856
and preceding 20123858 . In scientific notation, it is written as 2.0123857 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 18575856 positive integers (up to 20123857) that are relatively prime to 20123857.
20123857 has 4 divisors, whose sum is 21671860
The reverse of 20123857 is 75832102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred twenty-three thousand eight hundred fifty-seven
Scientific notation
2.0123857 × 10^7
Engineering notation
2.0123857 × 10^6
Prime Factorization
13 × 1547989
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20123857
Product of the distinct prime numbers
The prime factorization of 20123857 is 13 × 1547989.
Since it has a total of 2 prime factors.
1 , 6 , 70 , 77 , 481 , 364 , 2860 , 6917 , 42836 , 19883 , 370950 , 236503 , 3060843 , 5729857 , 65616840 , 36140909 , 8841128 , 116887025 , 4598094362 , 2548631451
n×2
40247714
n×3
60371571
n×4
80495428
n×5
100619285
n÷2
10061928.5
n÷3
6707952.3333333
n÷3
5030964.25
n÷5
4024771.4
n2
404969620556449
n3
8.1495507334222E+21
n4
1.6400039357363E+29
n5
3.3003204682195E+36
2 √n
4485.9622156233
3 √n
272.00094164178
4 √n
66.977326130739
5 √n
28.889647614838
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
-20123856
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 20123857 can be divided by 4 positive divisors.
The sum of these divisors (counting 20123857) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110001000011010001
3
Ternary
1101212101202001
4
Quaternary
1030301003101
5
Quinary
20122430412
6
Senary
1555154001
8
Octal
114610321
10
Decimal
20123857
12
Duodecimal
68a5901
16
Hexadecimal
13310d1
20
Vigesimal
65f9ch
36
Base36
bzbo1
md5
9fe56ee46268516a8932d1645de8fb81
sha1
eb16af104311c6237f5e4f00ba8d309e90c239ae
sha256
2f2a9f68c1ac84029c6079979a0013f947b8e9c35a114bb8fed1e32ef238abe9
sha512
9e1bb260353757180a3ca6292abe3b0e36e70dc86314bd7d09589ce00813c5ba5cf3eedd813a32955e3a31814a0d6199a9a7a4e73db7671c6eb896f73c22c8a4
ripemd-160
a4961cd2f476259a6235939add249d7e2c48c5a0
Diameter
40247714
Circumference
126441922.62618
Area
1.2722495848672E+15
Volume
3.4136758285569E+22
Surface area
5.0889983394687E+15
Circumference
126441922.62618
Perimeter
80495428
Area
404969620556449
Diagonal
28459431.496657
Surface area
2429817723338694
Volume
8.1495507334222E+21
Space diagonal
34855542.768251
Perimeter
60371571
Area
1.7535698958141E+14
Altitude
17427771.384125
Surface area
1.7535698958141E+14
Volume
9.6043376453778E+20
Height
9486477.1655522