20215755 is an odd 8-digits composite number following 20215754
and preceding 20215756 . In scientific notation, it is written as 2.0215755 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 8918784 positive integers (up to 20215755) that are relatively prime to 20215755.
20215755 has 16 divisors, whose sum is 28162080
The reverse of 20215755 is 55751202
Previous prime number is 105
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million two hundred fifteen thousand seven hundred fifty-five
Scientific notation
2.0215755 × 10^7
Engineering notation
2.0215755 × 10^6
Prime Factorization
3 × 29 × 105 × 2213
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20215755
Product of the distinct prime numbers
The prime factorization of 20215755 is 3 × 29 × 105 × 2213.
Since it has a total of 4 prime factors.
3 , 5 , 14 , 62 , 103 , 998 , 167 , 9534 , 92409 , 9613 , 135375 , 334102 , 7023555 , 2182176 , 62630463 , 57721082 , 602048929 , 393916026 , 5110637527 , 6959907450
n×2
40431510
n×3
60647265
n×4
80863020
n×5
101078775
n÷2
10107877.5
n÷3
6738585
n÷3
5053938.75
n÷5
4043151
n2
408676750220025
n3
8.2617090566442E+21
n4
1.670166861704E+29
n5
3.3763684085327E+36
2 √n
4496.1933899689
3 √n
272.41435459037
4 √n
67.053660526245
5 √n
28.915985155529
1 , 3 , 29 , 87 , 105 , 315 , 2213 , 3045 , 6639 , 9135 , 64177 , 192531 , 232365 , 697095 , 6738585 , 20215755
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20215754
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20215755 can be divided by 16 positive divisors.
The sum of these divisors (counting 20215755) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000111011111001011
3
Ternary
1102001001210200
4
Quaternary
1031013133023
5
Quinary
20133401010
6
Senary
2001143243
8
Octal
115073713
10
Decimal
20215755
12
Duodecimal
692ab23
16
Hexadecimal
13477cb
20
Vigesimal
666j7f
36
Base36
c1akr
md5
a336cac3ea6387c19a8d8f6effa2261b
sha1
329f9bc22c46637fda8f4b768c5a6c52b1c947b4
sha256
58349752fef7570e679e3a465f0b92bc58276c284ebbc5412d450a8a1d1626cf
sha512
8a56f00dde43c83f31f4729b6e0cd584f0350092bb13e55f4690f4a5a8096931bed69c6e8966b4c1692926c413702c1e32685565ea3ecf603edf8eea2367ae61
ripemd-160
bbec580e9def2361cd90d5adab0846c97de1ae0f
Diameter
40431510
Circumference
127019334.78954
Area
1.2838958761842E+15
Volume
3.4606565971266E+22
Surface area
5.1355835047367E+15
Circumference
127019334.78954
Perimeter
80863020
Area
408676750220025
Diagonal
28589394.894612
Surface area
2452060501320150
Volume
8.2617090566442E+21
Space diagonal
35014714.773365
Perimeter
60647265
Area
1.769622238133E+14
Altitude
17507357.386682
Surface area
1.769622238133E+14
Volume
9.7365174969057E+20
Height
9529798.2982039