20120857 is an odd 8-digits composite number following 20120856
and preceding 20120858 . In scientific notation, it is written as 2.0120857 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20105856 positive integers (up to 20120857) that are relatively prime to 20120857.
20120857 has 4 divisors, whose sum is 20135860
The reverse of 20120857 is 75802102
Previous prime number is 1489
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty thousand eight hundred fifty-seven
Scientific notation
2.0120857 × 10^7
Engineering notation
2.0120857 × 10^6
Prime Factorization
1489 × 13513
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20120857
Product of the distinct prime numbers
The prime factorization of 20120857 is 1489 × 13513.
Since it has a total of 2 prime factors.
9 , 1 , 95 , 89 , 277 , 393 , 7464 , 2878 , 18332 , 26374 , 284119 , 785481 , 617396 , 3430745 , 17705586 , 54924355 , 307153868 , 265367658 , 5512318676 , 6558737876
n×2
40241714
n×3
60362571
n×4
80483428
n×5
100604285
n÷2
10060428.5
n÷3
6706952.3333333
n÷3
5030214.25
n÷5
4024171.4
n2
404848886414449
n3
8.1459065501544E+21
n4
1.6390262083102E+29
n5
3.2978611956662E+36
2 √n
4485.6278267373
3 √n
271.98742462767
4 √n
66.974829799988
5 √n
28.888786208286
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
-20120856
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 20120857 can be divided by 4 positive divisors.
The sum of these divisors (counting 20120857) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000010100011001
3
Ternary
1101212020121221
4
Quaternary
1030300110121
5
Quinary
20122331412
6
Senary
1555132041
8
Octal
114602431
10
Decimal
20120857
12
Duodecimal
68a4021
16
Hexadecimal
1330519
20
Vigesimal
65f22h
36
Base36
bz9cp
md5
d98ba75a2544fd73a9abdff8ad69b72e
sha1
21b01868d80e8c6899bdea5e062f66e1c146d5dd
sha256
61492dabdc176a2cae5b67d41a55a9354c4ac852f931e31649a99cfe5b1e71fa
sha512
655cf140bba857bf41b476695109d0f651913768a7462f03f496ccee036f895d53cda684a3c34144b5e0c151fc4244429228acc96585ae43c5c8f3f981736f64
ripemd-160
b795637cc673f1bd905ecefca04d5db872f7eb02
Diameter
40241714
Circumference
126423073.07026
Area
1.2718702873736E+15
Volume
3.4121493566392E+22
Surface area
5.0874811494946E+15
Circumference
126423073.07026
Perimeter
80483428
Area
404848886414449
Diagonal
28455188.85597
Surface area
2429093318486694
Volume
8.1459065501544E+21
Space diagonal
34850346.615828
Perimeter
60362571
Area
1.7530471016438E+14
Altitude
17425173.307914
Surface area
1.7530471016438E+14
Volume
9.6000429342101E+20
Height
9485062.9519899