20121755 is an odd 8-digits composite number following 20121754
and preceding 20121756 . In scientific notation, it is written as 2.0121755 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 15870400 positive integers (up to 20121755) that are relatively prime to 20121755.
20121755 has 8 divisors, whose sum is 24486624
The reverse of 20121755 is 55712102
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty-one thousand seven hundred fifty-five
Scientific notation
2.0121755 × 10^7
Engineering notation
2.0121755 × 10^6
Prime Factorization
5 × 71 × 56681
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121755
Product of the distinct prime numbers
The prime factorization of 20121755 is 5 × 71 × 56681.
Since it has a total of 3 prime factors.
7 , 9 , 18 , 80 , 628 , 545 , 5570 , 4078 , 86458 , 73667 , 401666 , 354509 , 9642391 , 424622 , 71416196 , 7910747 , 702898253 , 648510971 , 4419508352 , 3088484110
n×2
40243510
n×3
60365265
n×4
80487020
n×5
100608775
n÷2
10060877.5
n÷3
6707251.6666667
n÷3
5030438.75
n÷5
4024351
n2
404885024280025
n3
8.1469972617317E+21
n4
1.6393188288624E+29
n5
3.2985971841255E+36
2 √n
4485.7279230912
3 √n
271.99147086145
4 √n
66.975577064264
5 √n
28.889044066755
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
-20121754
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 20121755 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121755) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000100010011011
3
Ternary
1101212021212012
4
Quaternary
1030300202123
5
Quinary
20122344010
6
Senary
1555140135
8
Octal
114604233
10
Decimal
20121755
12
Duodecimal
68a464b
16
Hexadecimal
133089b
20
Vigesimal
65f47f
36
Base36
bza1n
md5
dbc448b7171a61d065287733bad7527b
sha1
75a4b314f25b8cf570274eae99ea069cf0fe348a
sha256
866b52d0d4246c6d3029f26bcc7f5d6e0356586c5aebc6fc122c975d20999491
sha512
e75692f2b2e26ec1c10c09c5922794af2e82aee458aa5f59dd6e57ae1d2df645cc98ec1a938e3db631043a6953fc2c79a1630d941deee41f75bab4aa104718af
ripemd-160
c6040fe039e2af7ed610b56d2cc94270f3070913
Diameter
40243510
Circumference
126428715.37067
Area
1.2719838178267E+15
Volume
3.4126062328363E+22
Surface area
5.0879352713066E+15
Circumference
126428715.37067
Perimeter
80487020
Area
404885024280025
Diagonal
28456458.819749
Surface area
2429310145680150
Volume
8.1469972617317E+21
Space diagonal
34851901.997453
Perimeter
60365265
Area
1.7532035831919E+14
Altitude
17425950.998727
Surface area
1.7532035831919E+14
Volume
9.6013283501312E+20
Height
9485486.2732495