20121786 is an even 8-digits composite number following 20121785
and preceding 20121787 . In scientific notation, it is written as 2.0121786 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 6707256 positive integers (up to 20121786) that are relatively prime to 20121786.
20121786 has 12 divisors, whose sum is 43597242
The reverse of 20121786 is 68712102
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred twenty-one thousand seven hundred eighty-six
Scientific notation
2.0121786 × 10^7
Engineering notation
2.0121786 × 10^6
Prime Factorization
2 × 3 × 3 × 1117877
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6707262
Product of the distinct prime numbers
The prime factorization of 20121786 is 2 × 3 × 3 × 1117877.
Since it has a total of 4 prime factors.
5 , 8 , 20 , 29 , 263 , 311 , 4358 , 7422 , 17240 , 41597 , 421519 , 426934 , 4654611 , 4004143 , 50705449 , 89238896 , 378287506 , 294134932 , 7892322030 , 2883618106
n×2
40243572
n×3
60365358
n×4
80487144
n×5
100608930
n÷2
10060893
n÷3
6707262
n÷3
5030446.5
n÷5
4024357.2
n2
404886271829796
n3
8.147034916097E+21
n4
1.6393289311623E+29
n5
3.2986225936457E+36
2 √n
4485.7313784934
3 √n
271.99161053997
4 √n
66.975602860246
5 √n
28.889052968163
1 , 2 , 3 , 6 , 9 , 18 , 1117877 , 2235754 , 3353631 , 6707262 , 10060893 , 20121786
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
-20121785
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 20121786 can be divided by 12 positive divisors.
The sum of these divisors (counting 20121786) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110000100010111010
3
Ternary
1101212021220100
4
Quaternary
1030300202322
5
Quinary
20122344121
6
Senary
1555140230
8
Octal
114604272
10
Decimal
20121786
12
Duodecimal
68a4676
16
Hexadecimal
13308ba
20
Vigesimal
65f496
36
Base36
bza2i
md5
e19c18d46a06a88545fd9b12938242ac
sha1
65ca0ab76645909c472f7223a48f09314bf4fcb5
sha256
2af0baf4f5dab47310595dc1d3633c56e878ad90ad5ec066619b0f1ec2337cfe
sha512
c95a3a76b5df8d5dd61dfbcdc82c3a623bb4a506f701d00679d88a706baedba623841cdadc439b850998d210eeda95e0c0bf2af5d6b3161826427fe987ec3218
ripemd-160
bc8bfd4a47b900728f9086a678fa46740a7a6077
Diameter
40243572
Circumference
126428910.14941
Area
1.2719877371198E+15
Volume
3.41262200546E+22
Surface area
5.0879509484794E+15
Circumference
126428910.14941
Perimeter
80487144
Area
404886271829796
Diagonal
28456502.660369
Surface area
2429317630978776
Volume
8.147034916097E+21
Space diagonal
34851955.691028
Perimeter
60365358
Area
1.7532089852409E+14
Altitude
17425977.845514
Surface area
1.7532089852409E+14
Volume
9.6013727262263E+20
Height
9485500.8867897