21492489 is an odd 8-digits composite number following 21492488
and preceding 21492490 . In scientific notation, it is written as 2.1492489 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 14023376 positive integers (up to 21492489) that are relatively prime to 21492489.
21492489 has 8 divisors, whose sum is 29266560
The reverse of 21492489 is 98429412
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million four hundred ninety-two thousand four hundred eighty-nine
Scientific notation
2.1492489 × 10^7
Engineering notation
2.1492489 × 10^6
Prime Factorization
3 × 47 × 152429
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492489
Product of the distinct prime numbers
The prime factorization of 21492489 is 3 × 47 × 152429.
Since it has a total of 3 prime factors.
1 , 3 , 4 , 74 , 157 , 73 , 1665 , 8340 , 49775 , 1424 , 502058 , 208763 , 5968860 , 9104377 , 21588527 , 67427634 , 83224246 , 282760360 , 1640946585 , 1857731591
n×2
42984978
n×3
64477467
n×4
85969956
n×5
107462445
n÷2
10746244.5
n÷3
7164163
n÷3
5373122.25
n÷5
4298497.8
n2
461927083415121
n3
9.9279627591016E+21
n4
2.133766303924E+29
n5
4.5859948815657E+36
2 √n
4635.9992450388
3 √n
278.03250400616
4 √n
68.0881725782
5 √n
29.272333378597
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
-21492488
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 21492489 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492489) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111001100001001
3
Ternary
1111102221011010
4
Quaternary
1101333030021
5
Quinary
21000224424
6
Senary
2044354133
8
Octal
121771411
10
Decimal
21492489
12
Duodecimal
7245949
16
Hexadecimal
147f309
20
Vigesimal
6e6b49
36
Base36
csnpl
md5
40aef6b438bafc981d5acca89861da9d
sha1
5bfb396c793c527dda8ade5ba97e7a981a929355
sha256
22639544ee652b5045c2e6727deccf594e0e46596ebaefe2df8910947ffabf54
sha512
4431a8aab51a6d87ee6d18c81d87d8df94dbc9d9cd850b2e5165afce6a5c73096416c8f7aec6d9cc1d600b927f0441a63e643a1b14a7560c4aef04c4978d2c9b
ripemd-160
9281c5ef19ec04ee40cc973754ac819a8f31ed65
Diameter
42984978
Circumference
135041291.09952
Area
1.4511867317511E+15
Volume
4.1586153158809E+22
Surface area
5.8047469270044E+15
Circumference
135041291.09952
Perimeter
85969956
Area
461927083415121
Diagonal
30394969.432955
Surface area
2771562500490726
Volume
9.9279627591016E+21
Space diagonal
37226082.929115
Perimeter
64477467
Area
2.0002029446677E+14
Altitude
18613041.464558
Surface area
2.0002029446677E+14
Volume
1.1700216317214E+21
Height
10131656.477652