21492894 is an even 8-digits composite number following 21492893
and preceding 21492895 . In scientific notation, it is written as 2.1492894 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 7164296 positive integers (up to 21492894) that are relatively prime to 21492894.
21492894 has 8 divisors, whose sum is 42985800
The reverse of 21492894 is 49829412
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million four hundred ninety-two thousand eight hundred ninety-four
Scientific notation
2.1492894 × 10^7
Engineering notation
2.1492894 × 10^6
Prime Factorization
2 × 3 × 3582149
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492894
Product of the distinct prime numbers
The prime factorization of 21492894 is 2 × 3 × 3582149.
Since it has a total of 3 prime factors.
2 , 8 , 39 , 81 , 805 , 186 , 947 , 204 , 51164 , 98059 , 390082 , 706050 , 6601928 , 2110708 , 96600425 , 14501272 , 278477691 , 24172751 , 5096662376 , 5537839477
n×2
42985788
n×3
64478682
n×4
85971576
n×5
107464470
n÷2
10746447
n÷3
7164298
n÷3
5373223.5
n÷5
4298578.8
n2
461944492495236
n3
9.9285240110839E+21
n4
2.1339271414668E+29
n5
4.5864269855269E+36
2 √n
4636.0429247366
3 √n
278.03425039078
4 √n
68.08849333578
5 √n
29.27244369812
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
-21492893
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 21492894 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492894) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111010010011110
3
Ternary
1111102221201010
4
Quaternary
1101333102132
5
Quinary
21000233034
6
Senary
2044400050
8
Octal
121772236
10
Decimal
21492894
12
Duodecimal
7246026
16
Hexadecimal
147f49e
20
Vigesimal
6e6c4e
36
Base36
cso0u
md5
69201c86cd2e78af9f489316cfa32a73
sha1
cffb49bf652a55429f20684954cd7962247bfe4b
sha256
4704e3c85d9d149d7675d6b51e0182a9366ac05ca07233c9169ada308a36448a
sha512
88972b63c64199100e8bf57e77a438a893c16d4dc8505c261725e1fbeabc410c1deb70eb8c6be22f682526b7b2deedf6a513a8fc0c7247c1847048928bbfb7a1
ripemd-160
89416df524d241a6a60882c025aba40223f5c73b
Diameter
42985788
Circumference
135043835.78957
Area
1.4512414239893E+15
Volume
4.1588504125615E+22
Surface area
5.8049656959572E+15
Circumference
135043835.78957
Perimeter
85971576
Area
461944492495236
Diagonal
30395542.189447
Surface area
2771666954971416
Volume
9.9285240110839E+21
Space diagonal
37226784.409692
Perimeter
64478682
Area
2.0002783281959E+14
Altitude
18613392.204846
Surface area
2.0002783281959E+14
Volume
1.1700877759018E+21
Height
10131847.396482