21771389 is an odd 8-digits prime number following 21771388
and preceding 21771390 . In scientific notation, it is written as 2.1771389 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 21771388 positive integers (up to 21771389) that are relatively prime to 21771389.
21771389 has 2 divisors, whose sum is 21771390
The reverse of 21771389 is 98317712
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 38 Digital Root 2
Name
twenty-one million seven hundred seventy-one thousand three hundred eighty-nine
Scientific notation
2.1771389 × 10^7
Engineering notation
2.1771389 × 10^6
Prime Factorization
21771389
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21771389 Product of the distinct prime numbers
The prime factorization of 21771389 is 21771389.
Since it has a total of 1 prime factors.
7 , 10 , 69 , 77 , 384 , 88 , 6863 , 4038 , 79059 , 88391 , 543377 , 7292 , 4481364 , 1252155 , 13594614 , 59870154 , 405869920 , 339656403 , 124845821 , 4830367282
n×2
43542778
n×3
65314167
n×4
87085556
n×5
108856945
n÷2
10885694.5
n÷3
7257129.6666667
n÷3
5442847.25
n÷5
4354277.8
n2
473993378989321
n3
1.0319494237401E+22
n4
2.2466972332571E+29
n5
4.8913719430465E+36
2 √n4665.9821045521
3 √n279.22998042194
4 √n68.307994441003
5 √n29.34791330799
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21771390 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10885695 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4665.9822117106 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999081363 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21771389 can be divided by 2 positive divisors.
The sum of these divisors (counting 21771389) is 21771390, the average is 10885695.
Base
System
Value
2
Binary
1010011000011010001111101
3
Ternary
1111222002201202
4
Quaternary
1103003101331
5
Quinary
21033141024
6
Senary
2054345245
8
Octal
123032175
10
Decimal
21771389
12
Duodecimal
735b225
16
Hexadecimal
14c347d
20
Vigesimal
6g1899
36
Base36
cymwt
md5
1a4765259876412aca665830bc8f6838
sha1
8f03e2b14709811234d96792ee2058de305b7a93
sha256
f7205b9223e7e5878cb724a7ce120de3ba4aee62aa4fdc4afa0f1d7b2aefdcda
sha512
6a6b469d502cad6e363c3072658cb0a6405fce22cc5cff30d5177f2f6b845e5cdf6d28575ddc45f7e5242fdc2a0671c04f2459e420125bf2ce23899e9f65b9ab
ripemd-160
604e1cbd67961c454a1abc05e7bc5c54c7a5a13f
Diameter
43542778
Circumference
136793671.48169
Area
1.4890941172831E+15
Volume
4.3226196379975E+22
Surface area
5.9563764691322E+15
Circumference
136793671.48169
Perimeter
87085556
Area
473993378989321
Diagonal
30789393.5955
Surface area
2843960273935926
Volume
1.0319494237401E+22
Space diagonal
37709151.899346
Perimeter
65314167
Area
2.0524515371519E+14
Altitude
18854575.949673
Surface area
2.0524515371519E+14
Volume
1.216164058947E+21
Height
10263131.1985