21356724 is an even 8-digits composite number following 21356723
and preceding 21356725 . In scientific notation, it is written as 2.1356724 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 24 positive divisors.
There are 6953184 positive integers (up to 21356724) that are relatively prime to 21356724.
21356724 has 24 divisors, whose sum is 50992480
The reverse of 21356724 is 42765312
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million three hundred fifty-six thousand seven hundred twenty-four
Scientific notation
2.1356724 × 10^7
Engineering notation
2.1356724 × 10^6
Prime Factorization
2 × 2 × 3 × 43 × 41389
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10678362
Product of the distinct prime numbers
The prime factorization of 21356724 is 2 × 2 × 3 × 43 × 41389.
Since it has a total of 5 prime factors.
1 , 10 , 77 , 1 , 154 , 131 , 2527 , 8666 , 15563 , 13221 , 441879 , 510908 , 8648476 , 4364785 , 20576543 , 32413677 , 508273925 , 908994732 , 1766863164 , 5929900508
n×2
42713448
n×3
64070172
n×4
85426896
n×5
106783620
n÷2
10678362
n÷3
7118908
n÷3
5339181
n÷5
4271344.8
n2
456109660012176
n3
9.7410081226139E+21
n4
2.0803602195642E+29
n5
4.4429679029813E+36
2 √n
4621.3335737642
3 √n
277.4458363568
4 √n
67.980391097464
5 √n
29.235257744901
1 , 2 , 3 , 4 , 6 , 12 , 43 , 86 , 129 , 172 , 258 , 516 , 41389 , 82778 , 124167 , 165556 , 248334 , 496668 , 1779727 , 3559454 , 5339181 , 7118908 , 10678362 , 21356724
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21356723
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21356724 can be divided by 24 positive divisors.
The sum of these divisors (counting 21356724) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010001011110000010110100
3
Ternary
1111012000220210
4
Quaternary
1101132002310
5
Quinary
20431403344
6
Senary
2041425420
8
Octal
121360264
10
Decimal
21356724
12
Duodecimal
719b270
16
Hexadecimal
145e0b4
20
Vigesimal
6d9bg4
36
Base36
cpqyc
md5
637e46aa05f141ad2030567e826b1915
sha1
2705d6c154a75d412cab1965e87aa1498ab36481
sha256
59c1f6331b28ecc740d5a62fb19f7a62e8a7b1beb8cd1467dbda59248ad57bc4
sha512
db5e3e6355db6b5b5a8986926c3622f162df6a7a6b0df2f4cda510b1ffe6692e2d0482ce4862ac30ae266dd12316f1de58de3bc1fc8f3d3320226d8d09159ae0
ripemd-160
bbe2d2de10cc943fb4dba5082559ca01dc1e6c7a
Diameter
42713448
Circumference
134188254.44629
Area
1.4329107571256E+15
Volume
4.080303940875E+22
Surface area
5.7316430285024E+15
Circumference
134188254.44629
Perimeter
85426896
Area
456109660012176
Diagonal
30202968.728659
Surface area
2736657960073056
Volume
9.7410081226139E+21
Space diagonal
36990931.051226
Perimeter
64070172
Area
1.9750127624101E+14
Altitude
18495465.525613
Surface area
1.9750127624101E+14
Volume
1.1479888165156E+21
Height
10067656.242886