20178021 is an odd 8-digits composite number following 20178020
and preceding 20178022 . In scientific notation, it is written as 2.0178021 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13441392 positive integers (up to 20178021) that are relatively prime to 20178021.
20178021 has 8 divisors, whose sum is 26925280
The reverse of 20178021 is 12087102
Previous prime number is 2083
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred seventy-eight thousand twenty-one
Scientific notation
2.0178021 × 10^7
Engineering notation
2.0178021 × 10^6
Prime Factorization
3 × 2083 × 3229
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20178021
Product of the distinct prime numbers
The prime factorization of 20178021 is 3 × 2083 × 3229.
Since it has a total of 3 prime factors.
1 , 2 , 64 , 37 , 600 , 93 , 9513 , 4655 , 48135 , 84619 , 648094 , 112039 , 645227 , 7138931 , 50677537 , 21443202 , 77819220 , 808562722 , 2611367477 , 6237928294
n×2
40356042
n×3
60534063
n×4
80712084
n×5
100890105
n÷2
10089010.5
n÷3
6726007
n÷3
5044505.25
n÷5
4035604.2
n2
407152531476441
n3
8.2155323303348E+21
n4
1.6577318388767E+29
n5
3.3449747857224E+36
2 √n
4491.9952137107
3 √n
272.24475608427
4 √n
67.022348613807
5 √n
28.905182379651
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
-20178020
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 20178021 can be divided by 8 positive divisors.
The sum of these divisors (counting 20178021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111110010001100101
3
Ternary
1101222011001010
4
Quaternary
1030332101211
5
Quinary
20131144041
6
Senary
2000252433
8
Octal
114762145
10
Decimal
20178021
12
Duodecimal
6911119
16
Hexadecimal
133e465
20
Vigesimal
662511
36
Base36
c0hgl
md5
5b7a6433097f3f0a953d17cfad94a0e0
sha1
cf2c87e2bf73103f39ccc6e709d21e7cef2d5579
sha256
6a9832491053fb06af233d37a49eab0bdd96dac8bd89138f705e36ef6aad25ab
sha512
91928eda90b8703bab8faff42424c538868fca8c8f167e14611bb6c2b676a2c429522b9df035a953c6db5d9b6e812f0e469bab9946ed9c4abd9fcd48b4fe62ff
ripemd-160
0a81e9a91488181822522ecf0541b2d255e1d69e
Diameter
40356042
Circumference
126782245.07516
Area
1.2791074017769E+15
Volume
3.4413141352412E+22
Surface area
5.1164296071075E+15
Circumference
126782245.07516
Perimeter
80712084
Area
407152531476441
Diagonal
28536030.960049
Surface area
2442915188858646
Volume
8.2155323303348E+21
Space diagonal
34949357.568192
Perimeter
60534063
Area
1.7630221773687E+14
Altitude
17474678.784096
Surface area
1.7630221773687E+14
Volume
9.6820977030617E+20
Height
9512010.3200164