21281323 is an odd 8-digits composite number following 21281322
and preceding 21281324 . In scientific notation, it is written as 2.1281323 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 18241128 positive integers (up to 21281323) that are relatively prime to 21281323.
21281323 has 4 divisors, whose sum is 24321520
The reverse of 21281323 is 32318212
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million two hundred eighty-one thousand three hundred twenty-three
Scientific notation
2.1281323 × 10^7
Engineering notation
2.1281323 × 10^6
Prime Factorization
7 × 3040189
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21281323
Product of the distinct prime numbers
The prime factorization of 21281323 is 7 × 3040189.
Since it has a total of 2 prime factors.
1 , 3 , 98 , 7 , 952 , 132 , 4370 , 7478 , 42990 , 50761 , 80670 , 457393 , 6835300 , 1147554 , 5966046 , 91745404 , 409543513 , 682698090 , 6982093576 , 8321886840
n×2
42562646
n×3
63843969
n×4
85125292
n×5
106406615
n÷2
10640661.5
n÷3
7093774.3333333
n÷3
5320330.75
n÷5
4256264.6
n2
452894708630329
n3
9.6381985793529E+21
n4
2.0511361710535E+29
n5
4.3650891373173E+36
2 √n
4613.1684339508
3 √n
277.11893913453
4 √n
67.920309436506
5 √n
29.21458521729
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
-21281322
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 21281323 can be divided by 4 positive divisors.
The sum of these divisors (counting 21281323) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001001011101000101011
3
Ternary
1111001012111011
4
Quaternary
1101023220223
5
Quinary
20422000243
6
Senary
2040044351
8
Octal
121135053
10
Decimal
21281323
12
Duodecimal
71636b7
16
Hexadecimal
144ba2b
20
Vigesimal
6d0363
36
Base36
co4rv
md5
77963a45a3da56f7c20de5a874122eda
sha1
abd13d74a1fb67b94c8652b390d9d34da04dab0d
sha256
2c6d42dd1b73e1cdeeb9605737baada97c9cad623d043b0afc4d90a29ee8ed8d
sha512
35aa037fbb0cf194c05ef67df8c0d1744f6c74b39955d9ecb8d00af8ed5c40414a02f6ae261e2e8b296e774771d95fd3a3e61179e03e815822a2f82d4b4d61ed
ripemd-160
3dbfea7a31edc67c36f3775e046d2f8d5d8ceff3
Diameter
42562646
Circumference
133714495.99094
Area
1.4228106894827E+15
Volume
4.037239180098E+22
Surface area
5.6912427579309E+15
Circumference
133714495.99094
Perimeter
85125292
Area
452894708630329
Diagonal
30096335.611842
Surface area
2717368251781974
Volume
9.6381985793529E+21
Space diagonal
36860332.688284
Perimeter
63843969
Area
1.9610916145671E+14
Altitude
18430166.344142
Surface area
1.9610916145671E+14
Volume
1.1358725956472E+21
Height
10032111.870614