21461605 is an odd 8-digits composite number following 21461604
and preceding 21461606 . In scientific notation, it is written as 2.1461605 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 15608400 positive integers (up to 21461605) that are relatively prime to 21461605.
21461605 has 8 divisors, whose sum is 28095264
The reverse of 21461605 is 50616412
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million four hundred sixty-one thousand six hundred five
Scientific notation
2.1461605 × 10^7
Engineering notation
2.1461605 × 10^6
Prime Factorization
5 × 11 × 390211
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21461605
Product of the distinct prime numbers
The prime factorization of 21461605 is 5 × 11 × 390211.
Since it has a total of 3 prime factors.
7 , 6 , 80 , 98 , 241 , 751 , 9265 , 3249 , 23632 , 39012 , 557230 , 205673 , 9862294 , 7394923 , 63117024 , 22383855 , 364605859 , 667391780 , 2651187243 , 7129643873
n×2
42923210
n×3
64384815
n×4
85846420
n×5
107308025
n÷2
10730802.5
n÷3
7153868.3333333
n÷3
5365401.25
n÷5
4292321
n2
460600489176025
n3
9.8852257615026E+21
n4
2.1215281062919E+29
n5
4.5531398213636E+36
2 √n
4632.6671583441
3 √n
277.89926564395
4 √n
68.063699270199
5 √n
29.263915862815
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
-21461604
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 21461605 can be divided by 8 positive divisors.
The sum of these divisors (counting 21461605) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110111101001100101
3
Ternary
1111101100210021
4
Quaternary
1101313221211
5
Quinary
20443232410
6
Senary
2043555141
8
Octal
121675145
10
Decimal
21461605
12
Duodecimal
722bab1
16
Hexadecimal
1477a65
20
Vigesimal
6e2e05
36
Base36
crzvp
md5
656c3faf813fb5b0af9227e385140e7e
sha1
f71b1ba3768eac60ba247b130c486b5a7cc3aa85
sha256
bd63477e33acc96380007790f561bb12708c9f83ab60bc530cf39313267f684e
sha512
6caea98552eef4428d23fbb85f8433b4336450f479901ec88007293306f7fe99fa0a9424d820ff2b34bc07c323586d8b3d79d297cba4f3d447fdb19c3f12f8dd
ripemd-160
9b4d01c7ed6e80682dff8dac8b81aa34203cbb63
Diameter
42923210
Circumference
134847241.20449
Area
1.4470191130353E+15
Volume
4.1407136841884E+22
Surface area
5.7880764521411E+15
Circumference
134847241.20449
Perimeter
85846420
Area
460600489176025
Diagonal
30351292.861294
Surface area
2763602935056150
Volume
9.8852257615026E+21
Space diagonal
37172590.271974
Perimeter
64384815
Area
1.9944586231099E+14
Altitude
18586295.135987
Surface area
1.9944586231099E+14
Volume
1.1649850282531E+21
Height
10117097.620431