20402857 is an odd 8-digits composite number following 20402856
and preceding 20402858 . In scientific notation, it is written as 2.0402857 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20246980 positive integers (up to 20402857) that are relatively prime to 20402857.
20402857 has 4 divisors, whose sum is 20558736
The reverse of 20402857 is 75820402
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million four hundred two thousand eight hundred fifty-seven
Scientific notation
2.0402857 × 10^7
Engineering notation
2.0402857 × 10^6
Prime Factorization
131 × 155747
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20402857
Product of the distinct prime numbers
The prime factorization of 20402857 is 131 × 155747.
Since it has a total of 2 prime factors.
1 , 10 , 67 , 74 , 539 , 258 , 4225 , 3269 , 22512 , 45032 , 728419 , 117878 , 2877097 , 8587914 , 97311064 , 17847227 , 194222209 , 869215816 , 3388389244 , 2790994151
n×2
40805714
n×3
61208571
n×4
81611428
n×5
102014285
n÷2
10201428.5
n÷3
6800952.3333333
n÷3
5100714.25
n÷5
4080571.4
n2
416276573762449
n3
8.4932314069252E+21
n4
1.732861858634E+29
n5
3.5355332702464E+36
2 √n
4516.9521803978
3 √n
273.25219665266
4 √n
67.208274642322
5 √n
28.969313066416
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
-20402856
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 20402857 can be divided by 4 positive divisors.
The sum of these divisors (counting 20402857) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110101001010101001
3
Ternary
1102101120110101
4
Quaternary
1031311022221
5
Quinary
20210342412
6
Senary
2005145401
8
Octal
115651251
10
Decimal
20402857
12
Duodecimal
69bb261
16
Hexadecimal
13752a9
20
Vigesimal
67a72h
36
Base36
c5ay1
md5
3f45e81f46ae82e4e943b14e48f89e28
sha1
0e1d31d597737ea0a658ea8a70d7df090fc55451
sha256
57b02a15b3701f1589145b7b641ce606b0dfb9524fbb70a28efd4a4859160c6d
sha512
3cbc8b9549a9e4af01610f9394791fc608b9db8d85488f793f9d235d0f693dbe5cc4b662a2ee5d8df16d6d65b9cbc4052527d330aa28ff04fcf61e8a93d94a4b
ripemd-160
0e6624654d292a0680a96c8ac853e7e95baf5dfc
Diameter
40805714
Circumference
128194931.32689
Area
1.3077714259936E+15
Volume
3.5576364524312E+22
Surface area
5.2310857039746E+15
Circumference
128194931.32689
Perimeter
81611428
Area
416276573762449
Diagonal
28853997.080559
Surface area
2497659442574694
Volume
8.4932314069252E+21
Space diagonal
35338784.943562
Perimeter
61208571
Area
1.8025304393931E+14
Altitude
17669392.471781
Surface area
1.8025304393931E+14
Volume
1.0009369203372E+21
Height
9617999.0268529