20407765 is an odd 8-digits composite number following 20407764
and preceding 20407766 . In scientific notation, it is written as 2.0407765 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 13537440 positive integers (up to 20407765) that are relatively prime to 20407765.
20407765 has 12 divisors, whose sum is 23901696
The reverse of 20407765 is 56770402
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million four hundred seven thousand seven hundred sixty-five
Scientific notation
2.0407765 × 10^7
Engineering notation
2.0407765 × 10^6
Prime Factorization
155 × 7 × 7 × 2687
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2915395
Product of the distinct prime numbers
The prime factorization of 20407765 is 155 × 7 × 7 × 2687.
Since it has a total of 4 prime factors.
8 , 2 , 5 , 28 , 405 , 492 , 3643 , 9461 , 8272 , 13533 , 439159 , 51528 , 9863835 , 2649785 , 42860169 , 96971092 , 291560564 , 465583557 , 3114782309 , 8317796031
n×2
40815530
n×3
61223295
n×4
81631060
n×5
102038825
n÷2
10203882.5
n÷3
6802588.3333333
n÷3
5101941.25
n÷5
4081553
n2
416476872295225
n3
8.499362137736E+21
n4
1.7345298515681E+29
n5
3.5397877596287E+36
2 √n
4517.4954344194
3 √n
273.27410558201
4 √n
67.212316091765
5 √n
28.970706672317
1 , 7 , 49 , 155 , 1085 , 2687 , 7595 , 18809 , 131663 , 416485 , 2915395 , 20407765
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20407764
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20407765 can be divided by 12 positive divisors.
The sum of these divisors (counting 20407765) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101110110010111010101
3
Ternary
1102101211012011
4
Quaternary
1031312113111
5
Quinary
20211022030
6
Senary
2005224221
8
Octal
115662725
10
Decimal
20407765
12
Duodecimal
6a02071
16
Hexadecimal
13765d5
20
Vigesimal
67aj85
36
Base36
c5eqd
md5
37288f99fba0618b2df7794d6c34810c
sha1
7c70931c8a5613d8bc4782500305b0d97ed3453d
sha256
0a52b97862e702f9589dd5b4950c9bcb26fa53b5643ebe6c8951be5a88ac6e21
sha512
e0d1d7ecd1692f54d1450df835c78d36e0e7e7fc7b3c28189d0688d1f43deb300431bbd1e275e00f280526638939b55e41c526d97b7da784b806426840da3515
ripemd-160
3951d858d98e22ae61b0c0b62fb0a5c18d293e89
Diameter
40815530
Circumference
128225769.20037
Area
1.3084006823927E+15
Volume
3.5602044869481E+22
Surface area
5.2336027295709E+15
Circumference
128225769.20037
Perimeter
81631060
Area
416476872295225
Diagonal
28860938.040723
Surface area
2498861233771350
Volume
8.499362137736E+21
Space diagonal
35347285.848926
Perimeter
61223295
Area
1.8033977574818E+14
Altitude
17673642.924463
Surface area
1.8033977574818E+14
Volume
1.0016594338922E+21
Height
9620312.680241