20687321 is an odd 8-digits prime number following 20687320
and preceding 20687322 . In scientific notation, it is written as 2.0687321 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 20687320 positive integers (up to 20687321) that are relatively prime to 20687321.
20687321 has 2 divisors, whose sum is 20687322
The reverse of 20687321 is 12378602
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million six hundred eighty-seven thousand three hundred twenty-one
Scientific notation
2.0687321 × 10^7
Engineering notation
2.0687321 × 10^6
Prime Factorization
20687321
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20687321
Product of the distinct prime numbers
The prime factorization of 20687321 is 20687321.
Since it has a total of 1 prime factors.
3 , 8 , 44 , 26 , 385 , 678 , 1287 , 4813 , 51714 , 41290 , 920676 , 467628 , 8240484 , 7467975 , 17923072 , 35836629 , 916861824 , 39085277 , 9035630828 , 353295524
n×2
41374642
n×3
62061963
n×4
82749284
n×5
103436605
n÷2
10343660.5
n÷3
6895773.6666667
n÷3
5171830.25
n÷5
4137464.2
n2
427965250157041
n3
8.853454506844E+21
n4
1.8315425534198E+29
n5
3.7889708727755E+36
2 √n
4548.3316721629
3 √n
274.51626695371
4 √n
67.441320213671
5 √n
29.04964641721
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20687322
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10343661
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4548.3317820933
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999033224
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20687321 can be divided by 2 positive divisors.
The sum of these divisors (counting 20687321) is 20687322, the average is 10343661.
Base
System
Value
2
Binary
1001110111010100111011001
3
Ternary
1102221000200002
4
Quaternary
1032322213121
5
Quinary
20243443241
6
Senary
2015222345
8
Octal
116724731
10
Decimal
20687321
12
Duodecimal
6b179b5
16
Hexadecimal
13ba9d9
20
Vigesimal
695i61
36
Base36
cbeft
md5
7544f287b55c39bde4fdcaf0b645ff9c
sha1
8cf2eceb5065bd49d7d12d2d16af747460d725e4
sha256
a489a557b9f84e62175538ba19b7eca298676d2132abfd2e4038541ce5821437
sha512
a7b8a73eb552c27fe9fb7ce643c378b4f09a014fd2b1d0ebf06a93f54a564bfbca7ee17d981d5e81de942f790a9c9f725f67d83e48c4af905a6db7316260fb99
ripemd-160
2eec2e5812f375087d33abe820f5c038d07c7bae
Diameter
41374642
Circumference
129982271.35211
Area
1.3444924858851E+15
Volume
3.708526351679E+22
Surface area
5.3779699435403E+15
Circumference
129982271.35211
Perimeter
82749284
Area
427965250157041
Diagonal
29256289.927366
Surface area
2567791500942246
Volume
8.853454506844E+21
Space diagonal
35831491.044487
Perimeter
62061963
Area
1.8531438928648E+14
Altitude
17915745.522243
Surface area
1.8531438928648E+14
Volume
1.043389619786E+21
Height
9752096.6424552