21492531 is an odd 8-digits composite number following 21492530
and preceding 21492532 . In scientific notation, it is written as 2.1492531 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 14328348 positive integers (up to 21492531) that are relatively prime to 21492531.
21492531 has 4 divisors, whose sum is 23880600
The reverse of 21492531 is 13529412
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million four hundred ninety-two thousand five hundred thirty-one
Scientific notation
2.1492531 × 10^7
Engineering notation
2.1492531 × 10^6
Prime Factorization
9 × 2388059
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21492531
Product of the distinct prime numbers
The prime factorization of 21492531 is 9 × 2388059.
Since it has a total of 2 prime factors.
1 , 3 , 97 , 95 , 54 , 467 , 8137 , 1669 , 32698 , 14953 , 36389 , 290941 , 236470 , 9984163 , 55281295 , 47776897 , 724997833 , 729458961 , 1002970383 , 8258739954
n×2
42985062
n×3
64477593
n×4
85970124
n×5
107462655
n÷2
10746265.5
n÷3
7164177
n÷3
5373132.75
n÷5
4298506.2
n2
461928888785961
n3
9.9280209620278E+21
n4
2.1337829829503E+29
n5
4.5860396908332E+36
2 √n
4636.0037748043
3 √n
278.03268511373
4 √n
68.08820584216
5 √n
29.272344819217
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
-21492530
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 21492531 can be divided by 4 positive divisors.
The sum of these divisors (counting 21492531) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111001100110011
3
Ternary
1111102221012200
4
Quaternary
1101333030303
5
Quinary
21000230111
6
Senary
2044354243
8
Octal
121771463
10
Decimal
21492531
12
Duodecimal
7245983
16
Hexadecimal
147f333
20
Vigesimal
6e6b6b
36
Base36
csnqr
md5
04a4427b82fd4bb5bcdac1872cdb8db3
sha1
a4947eed6b27ffad4b74552d6b2ddd816972f5a8
sha256
586d0ef0033e2b0ecbf6b170c076309c47ab59d17aac05b6a4f518f61af86d78
sha512
0a7c85c5e2c13cca4a946d303c6700fc92f8640daedd71b6dd3493fdbb4fa365329d446fe16c6f95c582744042dc9271b64736e448c33771c1afdc4fb49b85ee
ripemd-160
5a8382e3c962f9d517d0e24b82501e41460212c9
Diameter
42985062
Circumference
135041554.9933
Area
1.4511924034909E+15
Volume
4.1586396958656E+22
Surface area
5.8047696139635E+15
Circumference
135041554.9933
Perimeter
85970124
Area
461928888785961
Diagonal
30395028.829924
Surface area
2771573332715766
Volume
9.9280209620278E+21
Space diagonal
37226155.675249
Perimeter
64477593
Area
2.0002107621528E+14
Altitude
18613077.837625
Surface area
2.0002107621528E+14
Volume
1.170028491002E+21
Height
10131676.276641