21506743 is an odd 8-digits composite number following 21506742
and preceding 21506744 . In scientific notation, it is written as 2.1506743 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 21284928 positive integers (up to 21506743) that are relatively prime to 21506743.
21506743 has 4 divisors, whose sum is 21728560
The reverse of 21506743 is 34760512
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred six thousand seven hundred forty-three
Scientific notation
2.1506743 × 10^7
Engineering notation
2.1506743 × 10^6
Prime Factorization
97 × 221719
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21506743
Product of the distinct prime numbers
The prime factorization of 21506743 is 97 × 221719.
Since it has a total of 2 prime factors.
10 , 1 , 66 , 76 , 475 , 821 , 9310 , 3439 , 33199 , 63159 , 330179 , 914724 , 1148310 , 9421608 , 66120810 , 84900384 , 642607184 , 420539316 , 7616153263 , 91171158
n×2
43013486
n×3
64520229
n×4
86026972
n×5
107533715
n÷2
10753371.5
n÷3
7168914.3333333
n÷3
5376685.75
n÷5
4301348.6
n2
462539994468049
n3
9.9477287882458E+21
n4
2.139432464825E+29
n5
4.6012224186848E+36
2 √n
4637.5363071355
3 √n
278.09395492388
4 √n
68.099458934235
5 √n
29.276215080666
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
-21506742
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 21506743 can be divided by 4 positive divisors.
The sum of these divisors (counting 21506743) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010000010101010110111
3
Ternary
1111110122201001
4
Quaternary
1102002222313
5
Quinary
21001203433
6
Senary
2044544131
8
Octal
122025267
10
Decimal
21506743
12
Duodecimal
7252047
16
Hexadecimal
1482ab7
20
Vigesimal
6e86h3
36
Base36
csypj
md5
f8d4d6bfc45b455d0c73468ed7169e10
sha1
c9c47f3404bffdcce25faadaffbaae332a112b7e
sha256
b0efa07c99112b92a90f16237677c55400461c421e98368aba406b48c728ab6c
sha512
d338cd63509925ff8ac76d70280d6e5ae5485ba7a139078716887c2f4a6d4a46b6076e7227e8c07063b6650a9d091cc09421ac4defdef07f19bc943199b94c36
ripemd-160
b2b4440fb1b8fae85bc3db0fe749e424d18e1b4e
Diameter
43013486
Circumference
135130851.62289
Area
1.4531122486123E+15
Volume
4.1668948908075E+22
Surface area
5.8124489944491E+15
Circumference
135130851.62289
Perimeter
86026972
Area
462539994468049
Diagonal
30415127.633073
Surface area
2775239966808294
Volume
9.9477287882458E+21
Space diagonal
37250771.581326
Perimeter
64520229
Area
2.0028569273782E+14
Altitude
18625385.790663
Surface area
2.0028569273782E+14
Volume
1.1723510805955E+21
Height
10138375.877691