21492871 is an odd 8-digits prime number following 21492870
and preceding 21492872 . In scientific notation, it is written as 2.1492871 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 21492870 positive integers (up to 21492871) that are relatively prime to 21492871.
21492871 has 2 divisors, whose sum is 21492872
The reverse of 21492871 is 17829412
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 34 Digital Root 7
Name
twenty-one million four hundred ninety-two thousand eight hundred seventy-one
Scientific notation
2.1492871 × 10^7
Engineering notation
2.1492871 × 10^6
Prime Factorization
21492871
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21492871 Product of the distinct prime numbers
The prime factorization of 21492871 is 21492871.
Since it has a total of 1 prime factors.
5 , 9 , 51 , 83 , 41 , 281 , 1756 , 2773 , 67182 , 26337 , 603928 , 233199 , 69415 , 8474420 , 53931268 , 4030508 , 565582176 , 798109593 , 8237294871 , 6736159431
n×2
42985742
n×3
64478613
n×4
85971484
n×5
107464355
n÷2
10746435.5
n÷3
7164290.3333333
n÷3
5373217.75
n÷5
4298574.2
n2
461943503822641
n3
9.928492136948E+21
n4
2.1339180072394E+29
n5
4.5864024454173E+36
2 √n4636.0404441722
3 √n278.03415121397
4 √n68.088475120039
5 √n29.272437433105
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21492872 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10746436 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4636.0405520228 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999069459 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21492871 can be divided by 2 positive divisors.
The sum of these divisors (counting 21492871) is 21492872, the average is 10746436.
Base
System
Value
2
Binary
1010001111111010010000111
3
Ternary
1111102221200021
4
Quaternary
1101333102013
5
Quinary
21000232441
6
Senary
2044400011
8
Octal
121772207
10
Decimal
21492871
12
Duodecimal
7246007
16
Hexadecimal
147f487
20
Vigesimal
6e6c3b
36
Base36
cso07
md5
351e7ca01c3bedb7d3f90854a90e6570
sha1
2a094098153ad2ccb46cb39868f3a0e1c28f5771
sha256
882285acd0e061359eb5ce1b8655df294a318b16957cd22a77f3aaa20100aedb
sha512
2c384df60a2e8e89a2421267574cca3bb0253481fd83fb34f3017038a15fb56292a21de46a2a82b676783c053de85c2dbc82bf057b2c05600732ea527ed1e7a9
ripemd-160
09995f814ea4745f9d24c08afa3ed9a0d9f352b4
Diameter
42985742
Circumference
135043691.27631
Area
1.4512383179827E+15
Volume
4.1588370611547E+22
Surface area
5.804953271931E+15
Circumference
135043691.27631
Perimeter
85971484
Area
461943503822641
Diagonal
30395509.662535
Surface area
2771661022935846
Volume
9.928492136948E+21
Space diagonal
37226744.572524
Perimeter
64478613
Area
2.000274047118E+14
Altitude
18613372.286262
Surface area
2.000274047118E+14
Volume
1.1700840194989E+21
Height
10131836.554178