21542431 is an odd 8-digits composite number following 21542430
and preceding 21542432 . In scientific notation, it is written as 2.1542431 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 21184800 positive integers (up to 21542431) that are relatively prime to 21542431.
21542431 has 8 divisors, whose sum is 21902400
The reverse of 21542431 is 13424512
Previous prime number is 701
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million five hundred forty-two thousand four hundred thirty-one
Scientific notation
2.1542431 × 10^7
Engineering notation
2.1542431 × 10^6
Prime Factorization
79 × 701 × 389
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21542431
Product of the distinct prime numbers
The prime factorization of 21542431 is 79 × 701 × 389.
Since it has a total of 3 prime factors.
3 , 10 , 37 , 24 , 927 , 952 , 5021 , 5643 , 9523 , 40211 , 465113 , 158129 , 9816929 , 8572496 , 21668956 , 75003967 , 319080909 , 432212829 , 5138727559 , 1027241001
n×2
43084862
n×3
64627293
n×4
86169724
n×5
107712155
n÷2
10771215.5
n÷3
7180810.3333333
n÷3
5385607.75
n÷5
4308486.2
n2
464076333389761
n3
9.9973323907819E+21
n4
2.1536684321248E+29
n5
4.6395253595928E+36
2 √n
4641.3824449188
3 √n
278.24769170815
4 √n
68.127692203088
5 √n
29.285924749455
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
-21542430
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 21542431 can be divided by 8 positive divisors.
The sum of these divisors (counting 21542431) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001011011000011111
3
Ternary
1111112110122211
4
Quaternary
1102023120133
5
Quinary
21003324211
6
Senary
2045421251
8
Octal
122133037
10
Decimal
21542431
12
Duodecimal
726a827
16
Hexadecimal
148b61f
20
Vigesimal
6ecg1b
36
Base36
ctq8v
md5
8f5a10c70ca92cde7cc974560758575f
sha1
7f91b86168e827f6a7e46954399153fc8050d892
sha256
47087b8d1a9b0aeb57edc17db27c5eb0d8e8a89bcea16e984c9b77ccc848f615
sha512
e0ff00d421bd107a88f5b3dc755624a127035339f700bdc1e7e2e2af6753d602ee0623a20fe32543291ee955f0dde2973f235938ac7de6102c681e19cb2d3920
ripemd-160
37bdafb2e6c672e780934090dbbc60ffd1cb918c
Diameter
43084862
Circumference
135355085.94013
Area
1.4579387996822E+15
Volume
4.1876727992501E+22
Surface area
5.8317551987286E+15
Circumference
135355085.94013
Perimeter
86169724
Area
464076333389761
Diagonal
30465598.086687
Surface area
2784458000338566
Volume
9.9973323907819E+21
Space diagonal
37312585.010547
Perimeter
64627293
Area
2.0095094700533E+14
Altitude
18656292.505273
Surface area
2.0095094700533E+14
Volume
1.1781969212163E+21
Height
10155199.362229