20188021 is an odd 8-digits composite number following 20188020
and preceding 20188022 . In scientific notation, it is written as 2.0188021 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 17249760 positive integers (up to 20188021) that are relatively prime to 20188021.
20188021 has 8 divisors, whose sum is 23144384
The reverse of 20188021 is 12088102
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred eighty-eight thousand twenty-one
Scientific notation
2.0188021 × 10^7
Engineering notation
2.0188021 × 10^6
Prime Factorization
7 × 331 × 8713
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20188021
Product of the distinct prime numbers
The prime factorization of 20188021 is 7 × 331 × 8713.
Since it has a total of 3 prime factors.
4 , 7 , 100 , 28 , 194 , 694 , 7669 , 294 , 98757 , 49207 , 480489 , 937924 , 9860785 , 4471492 , 39462364 , 66373361 , 205100484 , 161399042 , 8137425167 , 9544953041
n×2
40376042
n×3
60564063
n×4
80752084
n×5
100940105
n÷2
10094010.5
n÷3
6729340.3333333
n÷3
5047005.25
n÷5
4037604.2
n2
407556191896441
n3
8.2277529606854E+21
n4
1.6610204955313E+29
n5
3.3532716645216E+36
2 √n
4493.1081669597
3 √n
272.28972246868
4 √n
67.030650951335
5 √n
28.908046828454
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
-20188020
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 20188021 can be divided by 8 positive divisors.
The sum of these divisors (counting 20188021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000000101101110101
3
Ternary
1101222122202111
4
Quaternary
1031000231311
5
Quinary
20132004041
6
Senary
2000411021
8
Octal
115005565
10
Decimal
20188021
12
Duodecimal
6916a71
16
Hexadecimal
1340b75
20
Vigesimal
663a11
36
Base36
c0p6d
md5
8ae287d9d600ab4d37ad7b8e87f2332f
sha1
5132296045edbc0b1827c66f155f58c082a13bc8
sha256
531a3098fe236d5dda7c3e09555a1b1aa20fe58f60dff669ff5bfe9ae082c6d8
sha512
a27b3df369c0f6e72b483f759fcf6958d6cab2a942e4fb7b8b91bcd3c737f9ad55fd883e157141a97642bb9d77f2735ddae621c7fe1b0050fc463b0e75848a76
ripemd-160
e19159c76065872212f1fde3cb92eef2582283d6
Diameter
40376042
Circumference
126845076.92823
Area
1.2803755383869E+15
Volume
3.4464331009121E+22
Surface area
5.1215021535476E+15
Circumference
126845076.92823
Perimeter
80752084
Area
407556191896441
Diagonal
28550173.095673
Surface area
2445337151378646
Volume
8.2277529606854E+21
Space diagonal
34966678.076267
Perimeter
60564063
Area
1.7647700782598E+14
Altitude
17483339.038134
Surface area
1.7647700782598E+14
Volume
9.6964998540472E+20
Height
9516724.3652243