21457534 is an even 8-digits composite number following 21457533
and preceding 21457535 . In scientific notation, it is written as 2.1457534 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 9196080 positive integers (up to 21457534) that are relatively prime to 21457534.
21457534 has 8 divisors, whose sum is 36784368
The reverse of 21457534 is 43575412
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million four hundred fifty-seven thousand five hundred thirty-four
Scientific notation
2.1457534 × 10^7
Engineering notation
2.1457534 × 10^6
Prime Factorization
2 × 7 × 1532681
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21457534
Product of the distinct prime numbers
The prime factorization of 21457534 is 2 × 7 × 1532681.
Since it has a total of 3 prime factors.
4 , 9 , 38 , 80 , 131 , 343 , 702 , 9652 , 47989 , 55303 , 703797 , 465901 , 4886574 , 5360562 , 50383992 , 29561863 , 717342118 , 999465903 , 1584006697 , 8948789580
n×2
42915068
n×3
64372602
n×4
85830136
n×5
107287670
n÷2
10728767
n÷3
7152511.3333333
n÷3
5364383.5
n÷5
4291506.8
n2
460425765361156
n3
9.879601514713E+21
n4
2.1199188540841E+29
n5
4.548823088875E+36
2 √n
4632.2277577857
3 √n
277.88169318605
4 √n
68.06047133091
5 √n
29.26280557827
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
-21457533
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 21457534 can be divided by 8 positive divisors.
The sum of these divisors (counting 21457534) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110110101001111110
3
Ternary
1111101011012111
4
Quaternary
1101312221332
5
Quinary
20443120114
6
Senary
2043524234
8
Octal
121665176
10
Decimal
21457534
12
Duodecimal
722967a
16
Hexadecimal
1476a7e
20
Vigesimal
6e23ge
36
Base36
crwqm
md5
e3fcc17cb13b31351b771a6b7fe6c06c
sha1
c7c916aecd44f7b4e3430a3b99e9b8101d33663f
sha256
e3ede75a20edf8f5f6d1f5a3dba18d734bda77a4de8abf621de1836377af7379
sha512
20cf854377236765f89830515ddf0d9ba3a8342f89e3f7e45846299d82a0bceac82d3134f1217d70a61978024d2bce49d3550d45e1f08a3f5b2715889b2ebcbc
ripemd-160
b3c079261e50ca53a4679406ff084562338171b1
Diameter
42915068
Circumference
134821662.35711
Area
1.4464702019821E+15
Volume
4.1383578052023E+22
Surface area
5.7858808079283E+15
Circumference
134821662.35711
Perimeter
85830136
Area
460425765361156
Diagonal
30345535.597882
Surface area
2762554592166936
Volume
9.879601514713E+21
Space diagonal
37165539.093137
Perimeter
64372602
Area
1.9937020467983E+14
Altitude
18582769.546568
Surface area
1.9937020467983E+14
Volume
1.1643222044124E+21
Height
10115178.532627