21492291 is an odd 8-digits composite number following 21492290
and preceding 21492292 . In scientific notation, it is written as 2.1492291 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 14315400 positive integers (up to 21492291) that are relatively prime to 21492291.
21492291 has 8 divisors, whose sum is 28681984
The reverse of 21492291 is 19229412
Previous prime number is 4951
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million four hundred ninety-two thousand two hundred ninety-one
Scientific notation
2.1492291 × 10^7
Engineering notation
2.1492291 × 10^6
Prime Factorization
3 × 4951 × 1447
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492291
Product of the distinct prime numbers
The prime factorization of 21492291 is 3 × 4951 × 1447.
Since it has a total of 3 prime factors.
4 , 5 , 84 , 66 , 469 , 542 , 7584 , 1041 , 85334 , 39527 , 237093 , 107025 , 3170387 , 1843404 , 62630645 , 3516647 , 672504173 , 54702044 , 3703794060 , 5396397352
n×2
42984582
n×3
64476873
n×4
85969164
n×5
107461455
n÷2
10746145.5
n÷3
7164097
n÷3
5373072.75
n÷5
4298458.2
n2
461918572428681
n3
9.9276883769418E+21
n4
2.1336876755455E+29
n5
4.5857836425938E+36
2 √n
4635.9778903701
3 √n
278.03165021014
4 √n
68.088015761733
5 √n
29.272279444002
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
-21492290
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 21492291 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492291) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111001001000011
3
Ternary
1111102220212210
4
Quaternary
1101333021003
5
Quinary
21000223131
6
Senary
2044353203
8
Octal
121771103
10
Decimal
21492291
12
Duodecimal
7245803
16
Hexadecimal
147f243
20
Vigesimal
6e6aeb
36
Base36
csnk3
md5
14d418f3c6fc10e0e5205b7ccc81977d
sha1
ac763ad8a178cbbada6ad53ff7a86e96acd1edf7
sha256
9d18a4e5e68cb425894e70cd01d36301bc7554124d5c8fcd495f30d93565f6cf
sha512
ba5ca735808b9438824950c39fdbbfa43e9d08e41fbad6108f4fee1a7aa8263d918aaea7ce2cdb1e235979ab57d226f4737acc94fdfcd781159dc30868da99eb
ripemd-160
90346ab3a1a3238a1aab07e5690f5e4dd271b94b
Diameter
42984582
Circumference
135040047.02883
Area
1.4511599936986E+15
Volume
4.1585003829505E+22
Surface area
5.8046399747945E+15
Circumference
135040047.02883
Perimeter
85969164
Area
461918572428681
Diagonal
30394689.418669
Surface area
2771511434572086
Volume
9.9276883769418E+21
Space diagonal
37225739.983055
Perimeter
64476873
Area
2.0001660910154E+14
Altitude
18612869.991528
Surface area
2.0001660910154E+14
Volume
1.1699892954737E+21
Height
10131563.139556