21542279 is an odd 8-digits composite number following 21542278
and preceding 21542280 . In scientific notation, it is written as 2.1542279 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 19553400 positive integers (up to 21542279) that are relatively prime to 21542279.
21542279 has 8 divisors, whose sum is 23537280
The reverse of 21542279 is 97224512
Previous prime number is 2131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million five hundred forty-two thousand two hundred seventy-nine
Scientific notation
2.1542279 × 10^7
Engineering notation
2.1542279 × 10^6
Prime Factorization
11 × 2131 × 919
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21542279
Product of the distinct prime numbers
The prime factorization of 21542279 is 11 × 2131 × 919.
Since it has a total of 3 prime factors.
7 , 9 , 48 , 62 , 706 , 69 , 5 , 9612 , 1026 , 32467 , 993444 , 489936 , 9166602 , 8299797 , 60135236 , 46500336 , 594660628 , 950097752 , 3683526459 , 5730601568
n×2
43084558
n×3
64626837
n×4
86169116
n×5
107711395
n÷2
10771139.5
n÷3
7180759.6666667
n÷3
5385569.75
n÷5
4308455.8
n2
464069784513841
n3
9.997120773467E+21
n4
2.1536076489872E+29
n5
4.6393616831017E+36
2 √n
4641.3660704581
3 √n
278.24703728265
4 √n
68.127572028204
5 √n
29.285883421963
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
-21542278
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 21542279 can be divided by 8 positive divisors.
The sum of these divisors (counting 21542279) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001011010110000111
3
Ternary
1111112110110012
4
Quaternary
1102023112013
5
Quinary
21003323104
6
Senary
2045420435
8
Octal
122132607
10
Decimal
21542279
12
Duodecimal
726a71b
16
Hexadecimal
148b587
20
Vigesimal
6ecfdj
36
Base36
ctq4n
md5
8397e545b1026491331d4e0bb4dc73a7
sha1
71d240b9d7ad8b08beeab468d336919842c8baea
sha256
cd53769f65a7994ad13274f378fb2383ea5e7285ebec42fe750aecb3ab3e848c
sha512
009ef44a191c4ba9f0de15bd859092aba75e07730f575692706999e5b1d85c46b515911112e3506baf93f0a2fd8ba029b6cfe36bfcd1606129f2561fee15497d
ripemd-160
68a9000c9d767abff3c342adf52f0c77ca9b1e1a
Diameter
43084558
Circumference
135354130.89596
Area
1.4579182257817E+15
Volume
4.1875841571965E+22
Surface area
5.8316729031267E+15
Circumference
135354130.89596
Perimeter
86169116
Area
464069784513841
Diagonal
30465383.126225
Surface area
2784418707083046
Volume
9.997120773467E+21
Space diagonal
37312321.738824
Perimeter
64626837
Area
2.0094811125888E+14
Altitude
18656160.869412
Surface area
2.0094811125888E+14
Volume
1.1781719818766E+21
Height
10155127.708742