21356543 is an odd 8-digits composite number following 21356542
and preceding 21356544 . In scientific notation, it is written as 2.1356543 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 19713720 positive integers (up to 21356543) that are relatively prime to 21356543.
21356543 has 4 divisors, whose sum is 22999368
The reverse of 21356543 is 34565312
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million three hundred fifty-six thousand five hundred forty-three
Scientific notation
2.1356543 × 10^7
Engineering notation
2.1356543 × 10^6
Prime Factorization
13 × 1642811
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21356543
Product of the distinct prime numbers
The prime factorization of 21356543 is 13 × 1642811.
Since it has a total of 2 prime factors.
8 , 4 , 57 , 19 , 152 , 27 , 3172 , 3998 , 70316 , 28422 , 873448 , 689123 , 4644395 , 6034151 , 84481468 , 18623760 , 714299527 , 428824765 , 3971200446 , 3357270884
n×2
42713086
n×3
64069629
n×4
85426172
n×5
106782715
n÷2
10678271.5
n÷3
7118847.6666667
n÷3
5339135.75
n÷5
4271308.6
n2
456101928910849
n3
9.7407604571675E+21
n4
2.080289695562E+29
n5
4.4427796335726E+36
2 √n
4621.3139906308
3 √n
277.44505256246
4 √n
67.980247062149
5 √n
29.235208190488
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21356542
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21356543 can be divided by 4 positive divisors.
The sum of these divisors (counting 21356543) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001011101111111111111
3
Ternary
1111012000200002
4
Quaternary
1101131333333
5
Quinary
20431402133
6
Senary
2041424515
8
Octal
121357777
10
Decimal
21356543
12
Duodecimal
719b13b
16
Hexadecimal
145dfff
20
Vigesimal
6d9b73
36
Base36
cpqtb
md5
5f46d77895eef4359235c3c075e6be85
sha1
35b88a9169110abf872ff89ac761ef17e938eb05
sha256
95f161e549212f91f9669b9f4207a1e1152c590964974b1c3c9f4e3baf5db613
sha512
ae273bc4a01b10e9a7e5d6a2baf29ccd0d2ccd9f90a97b7800932c3be81efbcdf9998718f646add9e4e281b6f2962163881e4a4d87caa4febdce875bd5ad63b7
ripemd-160
07d18f58563e740fc3affb1260fee8a000662724
Diameter
42713086
Circumference
134187117.18975
Area
1.4328864691545E+15
Volume
4.0802001990154E+22
Surface area
5.7315458766178E+15
Circumference
134187117.18975
Perimeter
85426172
Area
456101928910849
Diagonal
30202712.756004
Surface area
2736611573465094
Volume
9.7407604571675E+21
Space diagonal
36990617.550029
Perimeter
64069629
Area
1.9749792857594E+14
Altitude
18495308.775015
Surface area
1.9749792857594E+14
Volume
1.1479596288628E+21
Height
10067570.918668