21492881 is an odd 8-digits prime number following 21492880
and preceding 21492882 . In scientific notation, it is written as 2.1492881 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 21492880 positive integers (up to 21492881) that are relatively prime to 21492881.
21492881 has 2 divisors, whose sum is 21492882
The reverse of 21492881 is 18829412
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 35 Digital Root 8
Name
twenty-one million four hundred ninety-two thousand eight hundred eighty-one
Scientific notation
2.1492881 × 10^7
Engineering notation
2.1492881 × 10^6
Prime Factorization
21492881
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21492881 Product of the distinct prime numbers
The prime factorization of 21492881 is 21492881.
Since it has a total of 1 prime factors.
10 , 2 , 26 , 84 , 747 , 487 , 47 , 1749 , 71683 , 40855 , 822943 , 137521 , 5199310 , 3062842 , 88117225 , 77637551 , 646425344 , 163243564 , 3640462956 , 1479588643
n×2
42985762
n×3
64478643
n×4
85971524
n×5
107464405
n÷2
10746440.5
n÷3
7164293.6666667
n÷3
5373220.25
n÷5
4298576.2
n2
461943933680161
n3
9.9285059952596E+21
n4
2.133921978639E+29
n5
4.5864131150173E+36
2 √n4636.0415226786
3 √n278.03419433433
4 √n68.088483039928
5 √n29.272440157025
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21492882 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10746441 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4636.0416305292 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 21492881 can be divided by 2 positive divisors.
The sum of these divisors (counting 21492881) is 21492882, the average is 10746441.
Base
System
Value
2
Binary
1010001111111010010010001
3
Ternary
1111102221200122
4
Quaternary
1101333102101
5
Quinary
21000233011
6
Senary
2044400025
8
Octal
121772221
10
Decimal
21492881
12
Duodecimal
7246015
16
Hexadecimal
147f491
20
Vigesimal
6e6c41
36
Base36
cso0h
md5
b646f6d78bd1832796853754923cc490
sha1
b5516ca3be0859ae5c6c17c00dc0e14ceb5ee114
sha256
59388ad7a59858dfb53d2550a5b9d067282920f7f90e133f5c4e9ce6e3b6ac92
sha512
2e0f269dceca9bab0bbf089dca7946c7da133576ebfa21b6b2042d0c8fec1044479fd45ce2b5ea2800f82bd258bac74a41c40b6a1e0fa28c874d203da978a6d9
ripemd-160
fc817a54f8b0bc3f0271f89de385b626b22ac5ce
Diameter
42985762
Circumference
135043754.10816
Area
1.45123966842E+15
Volume
4.1588428661106E+22
Surface area
5.8049586736799E+15
Circumference
135043754.10816
Perimeter
85971524
Area
461943933680161
Diagonal
30395523.804671
Surface area
2771663602080966
Volume
9.9285059952596E+21
Space diagonal
37226761.893032
Perimeter
64478643
Area
2.0002759084557E+14
Altitude
18613380.946516
Surface area
2.0002759084557E+14
Volume
1.1700856527166E+21
Height
10131841.268224