21431185 is an odd 8-digits composite number following 21431184
and preceding 21431186 . In scientific notation, it is written as 2.1431185 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 17144944 positive integers (up to 21431185) that are relatively prime to 21431185.
21431185 has 4 divisors, whose sum is 25717428
The reverse of 21431185 is 58113412
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million four hundred thirty-one thousand one hundred eighty-five
Scientific notation
2.1431185 × 10^7
Engineering notation
2.1431185 × 10^6
Prime Factorization
5 × 4286237
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21431185
Product of the distinct prime numbers
The prime factorization of 21431185 is 5 × 4286237.
Since it has a total of 2 prime factors.
4 , 2 , 33 , 18 , 412 , 939 , 5832 , 8277 , 76250 , 94247 , 263470 , 110093 , 641718 , 1922309 , 38167664 , 5710594 , 80265268 , 173496417 , 4510266248 , 5121062527
n×2
42862370
n×3
64293555
n×4
85724740
n×5
107155925
n÷2
10715592.5
n÷3
7143728.3333333
n÷3
5357796.25
n÷5
4286237
n2
459295690504225
n3
9.8432509128988E+21
n4
2.1095253131575E+29
n5
4.5209627248462E+36
2 √n
4629.3827882343
3 √n
277.76790403422
4 √n
68.0395678134
5 √n
29.255615332934
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
-21431184
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 21431185 can be divided by 4 positive divisors.
The sum of these divisors (counting 21431185) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001110000001110010001
3
Ternary
1111022211001121
4
Quaternary
1101300032101
5
Quinary
20441244220
6
Senary
2043202241
8
Octal
121601621
10
Decimal
21431185
12
Duodecimal
7216381
16
Hexadecimal
1470391
20
Vigesimal
6dihj5
36
Base36
crcep
md5
32c6ed1fbe022214e021cc93cd9143e2
sha1
44248b9a70b4661b8e6b9d93fe1abc0aaa6a6cc2
sha256
657a70fd2a4f57be247fc1ab31593661fe6cca37155c01af0e5473b47cacba2d
sha512
2b0833dabcd8dace563ac536c58a9692804431ebe2990ca144db42c3a234c8134a8f7c95436efd5fa605ce66fe343d81c941c4d6f0ec4df34dd9730aec799484
ripemd-160
51a8197e54563868676f431ff8472bc74faf5ddb
Diameter
42862370
Circumference
134656106.70745
Area
1.4429199671135E+15
Volume
4.1231313007205E+22
Surface area
5.7716798684541E+15
Circumference
134656106.70745
Perimeter
85724740
Area
459295690504225
Diagonal
30308272.484727
Surface area
2755774143025350
Volume
9.8432509128988E+21
Space diagonal
37119901.286408
Perimeter
64293555
Area
1.9888086791269E+14
Altitude
18559950.643204
Surface area
1.9888086791269E+14
Volume
1.1600382449052E+21
Height
10102757.494909