21242746 is an even 8-digits composite number following 21242745
and preceding 21242747 . In scientific notation, it is written as 2.1242746 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 9104028 positive integers (up to 21242746) that are relatively prime to 21242746.
21242746 has 8 divisors, whose sum is 36416160
The reverse of 21242746 is 64724212
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million two hundred forty-two thousand seven hundred forty-six
Scientific notation
2.1242746 × 10^7
Engineering notation
2.1242746 × 10^6
Prime Factorization
2 × 7 × 1517339
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21242746
Product of the distinct prime numbers
The prime factorization of 21242746 is 2 × 7 × 1517339.
Since it has a total of 3 prime factors.
5 , 4 , 21 , 36 , 791 , 457 , 8225 , 2551 , 64833 , 61338 , 910772 , 248914 , 6630707 , 3372746 , 97045849 , 16474308 , 110505591 , 498553206 , 1797290909 , 5461398318
n×2
42485492
n×3
63728238
n×4
84970984
n×5
106213730
n÷2
10621373
n÷3
7080915.3333333
n÷3
5310686.5
n÷5
4248549.2
n2
451254257620516
n3
9.5858795760512E+21
n4
2.0363040502064E+29
n5
4.3256689717306E+36
2 √n
4608.9853547175
3 √n
276.95139185388
4 √n
67.889508428898
5 √n
29.20398597847
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
-21242745
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 21242746 can be divided by 8 positive divisors.
The sum of these divisors (counting 21242746) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001000010001101111010
3
Ternary
1110222020120101
4
Quaternary
1101002031322
5
Quinary
20414231441
6
Senary
2035150014
8
Octal
121021572
10
Decimal
21242746
12
Duodecimal
714530a
16
Hexadecimal
144237a
20
Vigesimal
6cf6h6
36
Base36
cnb0a
md5
02c45a572b060547d95e415b25bab335
sha1
823781968b6f49f929355e7bcae8fb008de80c16
sha256
da297c14a26e17b42cdcc26bc26403742294da586d9184f91e75b245bc49f83b
sha512
d53ab262aeef0a7521f973877c1cf7cac67c40864359d109bb2732088c135230d5c7a10ed8b38e4892192d1c6eca6669651ae4ed7d4d04338b4a1786436d37d2
ripemd-160
c3d54b07aed1d1996593e4ad71d7a2765329c6b9
Diameter
42485492
Circumference
133472109.55135
Area
1.4176570606417E+15
Volume
4.0153238472425E+22
Surface area
5.6706282425669E+15
Circumference
133472109.55135
Perimeter
84970984
Area
451254257620516
Diagonal
30041779.495247
Surface area
2707525545723096
Volume
9.5858795760512E+21
Space diagonal
36793515.364281
Perimeter
63728238
Area
1.9539882533263E+14
Altitude
18396757.68214
Surface area
1.9539882533263E+14
Volume
1.1297067419772E+21
Height
10013926.498416