21432487 is an odd 8-digits composite number following 21432486
and preceding 21432488 . In scientific notation, it is written as 2.1432487 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 21290400 positive integers (up to 21432487) that are relatively prime to 21432487.
21432487 has 4 divisors, whose sum is 21574576
The reverse of 21432487 is 78423412
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million four hundred thirty-two thousand four hundred eighty-seven
Scientific notation
2.1432487 × 10^7
Engineering notation
2.1432487 × 10^6
Prime Factorization
151 × 141937
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21432487
Product of the distinct prime numbers
The prime factorization of 21432487 is 151 × 141937.
Since it has a total of 2 prime factors.
7 , 10 , 19 , 94 , 175 , 205 , 2374 , 3693 , 74238 , 91749 , 749549 , 66173 , 1593836 , 9581906 , 28163806 , 94891809 , 620273371 , 275101677 , 4632698263 , 9922406588
n×2
42864974
n×3
64297461
n×4
85729948
n×5
107162435
n÷2
10716243.5
n÷3
7144162.3333333
n÷3
5358121.75
n÷5
4286497.4
n2
459351499005169
n3
9.8450450308588E+21
n4
2.110037996383E+29
n5
4.5223361926984E+36
2 √n
4629.5234095963
3 √n
277.7735289602
4 √n
68.040601184853
5 √n
29.255970795177
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
-21432486
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 21432487 can be divided by 4 positive divisors.
The sum of these divisors (counting 21432487) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001110000100010100111
3
Ternary
1111022212211211
4
Quaternary
1101300202213
5
Quinary
20441314422
6
Senary
2043212251
8
Octal
121604247
10
Decimal
21432487
12
Duodecimal
7217087
16
Hexadecimal
14708a7
20
Vigesimal
6dj147
36
Base36
crdev
md5
8aba37cbfbeeba2a5602cb073d2ba625
sha1
35d11e5aa266b99ba27655b6ec708601338ad079
sha256
b08cb0c39c685b7066a65924e49d3a6f4627db0306cc0cee866e8cd60c3953b7
sha512
dc2a5c96fa386700100f5deef938ab4083b7ca28377df581680563c7a51c79a512a4d9c0984fe664aa6b650a5673f3e2c5e7b3121f0e2bc527b366814a4195bb
ripemd-160
59759983573cf5bcf36f78fac9af8ebebf511124
Diameter
42864974
Circumference
134664287.41472
Area
1.4430952946901E+15
Volume
4.1238828190942E+22
Surface area
5.7723811787604E+15
Circumference
134664287.41472
Perimeter
85729948
Area
459351499005169
Diagonal
30310113.790785
Surface area
2756108994031014
Volume
9.8450450308588E+21
Space diagonal
37122156.416559
Perimeter
64297461
Area
1.9890503370247E+14
Altitude
18561078.20828
Surface area
1.9890503370247E+14
Volume
1.1602496837345E+21
Height
10103371.263595