21291777 is an odd 8-digits composite number following 21291776
and preceding 21291778 . In scientific notation, it is written as 2.1291777 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 13102560 positive integers (up to 21291777) that are relatively prime to 21291777.
21291777 has 12 divisors, whose sum is 33120724
The reverse of 21291777 is 77719212
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million two hundred ninety-one thousand seven hundred seventy-seven
Scientific notation
2.1291777 × 10^7
Engineering notation
2.1291777 × 10^6
Prime Factorization
13 × 3 × 3 × 181981
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
7097259
Product of the distinct prime numbers
The prime factorization of 21291777 is 13 × 3 × 3 × 181981.
Since it has a total of 4 prime factors.
8 , 6 , 81 , 61 , 709 , 684 , 1183 , 3610 , 1903 , 42733 , 800518 , 790342 , 5218336 , 9456665 , 55594603 , 62249450 , 99354812 , 270476232 , 1558795103 , 2989591940
n×2
42583554
n×3
63875331
n×4
85167108
n×5
106458885
n÷2
10645888.5
n÷3
7097259
n÷3
5322944.25
n÷5
4258355.4
n2
453339767817729
n3
9.6524092416069E+21
n4
2.0551694508503E+29
n5
4.3758209644718E+36
2 √n
4614.3013555684
3 √n
277.16430797988
4 √n
67.92864900444
5 √n
29.217454862952
1 , 3 , 9 , 13 , 39 , 117 , 181981 , 545943 , 1637829 , 2365753 , 7097259 , 21291777
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21291776
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21291777 can be divided by 12 positive divisors.
The sum of these divisors (counting 21291777) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001001110001100000001
3
Ternary
1111001201211100
4
Quaternary
1101032030001
5
Quinary
20422314102
6
Senary
2040205013
8
Octal
121161401
10
Decimal
21291777
12
Duodecimal
7169769
16
Hexadecimal
144e301
20
Vigesimal
6d198h
36
Base36
cocu9
md5
82040890dc03c1893022bf83a1c8e0ca
sha1
deca5fbd4f960bea359c272ff0b4d93392b480b5
sha256
e248a5d0b91f7f8dbb85ffc5bb38ead00664fa8e9b7b48e0eef03db623013d28
sha512
05d30fa03840bb0fd3be981bd735733c501d5c0671f746dc93ee31352724c5f637b1ba4e6c7eb371ea11c16eb2e678a41de3dffd3a20b99df78ccfa469a2f124
ripemd-160
722da93945103c5cf00f9ded5b72a97be0927037
Diameter
42583554
Circumference
133780180.41014
Area
1.4242088841563E+15
Volume
4.0431917283832E+22
Surface area
5.6968355366251E+15
Circumference
133780180.41014
Perimeter
85167108
Area
453339767817729
Diagonal
30111119.800424
Surface area
2720038606906374
Volume
9.6524092416069E+21
Space diagonal
36878439.547426
Perimeter
63875331
Area
1.9630187773795E+14
Altitude
18439219.773713
Surface area
1.9630187773795E+14
Volume
1.1375473382547E+21
Height
10037039.933475