21342681 is an odd 8-digits composite number following 21342680
and preceding 21342682 . In scientific notation, it is written as 2.1342681 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 18 positive divisors.
There are 13477536 positive integers (up to 21342681) that are relatively prime to 21342681.
21342681 has 18 divisors, whose sum is 32541210
The reverse of 21342681 is 18624312
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million three hundred forty-two thousand six hundred eighty-one
Scientific notation
2.1342681 × 10^7
Engineering notation
2.1342681 × 10^6
Prime Factorization
3 × 3 × 19 × 19 × 6569
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
374433
Product of the distinct prime numbers
The prime factorization of 21342681 is 3 × 3 × 19 × 19 × 6569.
Since it has a total of 5 prime factors.
3 , 3 , 13 , 16 , 154 , 454 , 281 , 2860 , 83891 , 27855 , 687375 , 429582 , 9162174 , 1639573 , 67905939 , 85882522 , 359210274 , 258326260 , 3006214930 , 990399991
n×2
42685362
n×3
64028043
n×4
85370724
n×5
106713405
n÷2
10671340.5
n÷3
7114227
n÷3
5335670.25
n÷5
4268536.2
n2
455510032267761
n3
9.7218053109905E+21
n4
2.0748938949658E+29
n5
4.4283798509102E+36
2 √n
4619.8139572931
3 √n
277.38501201313
4 √n
67.969213304945
5 √n
29.231412035706
1 , 3 , 9 , 19 , 57 , 171 , 361 , 1083 , 3249 , 6569 , 19707 , 59121 , 124811 , 374433 , 1123299 , 2371409 , 7114227 , 21342681
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21342680
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21342681 can be divided by 18 positive divisors.
The sum of these divisors (counting 21342681) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
1010001011010100111011001
3
Ternary
1111011022122200
4
Quaternary
1101122213121
5
Quinary
20430431211
6
Senary
2041240413
8
Octal
121324731
10
Decimal
21342681
12
Duodecimal
7193109
16
Hexadecimal
145a9d9
20
Vigesimal
6d7ge1
36
Base36
cpg49
md5
a582f8c4dff67a56c7a1cfe2bc04f71f
sha1
e381119cc1d306560429fdb90fc42da82a5773c8
sha256
4f05246e601042f6edfe2acfd59a228d0f684aa07c8a693b2da5109200b782f2
sha512
ab56bccaa30bbc1d5d92996d999eee0a3ab32acc7fdb89f94a57f4c1a345a9f97e371044d0d674ab2bd8b998ccd99a31b9765c9f394c3ebfc04abc2fa168e1ce
ripemd-160
a7fbeeda57111515c91c02dcdf65ea1e1a4954ac
Diameter
42685362
Circumference
134100019.67502
Area
1.4310269710088E+15
Volume
4.0722602859517E+22
Surface area
5.7241078840354E+15
Circumference
134100019.67502
Perimeter
85370724
Area
455510032267761
Diagonal
30183108.927603
Surface area
2733060193606566
Volume
9.7218053109905E+21
Space diagonal
36966607.861735
Perimeter
64028043
Area
1.9724162981128E+14
Altitude
18483303.930867
Surface area
1.9724162981128E+14
Volume
1.1457257434628E+21
Height
10061036.309201