21458081 is an odd 8-digits prime number following 21458080
and preceding 21458082 . In scientific notation, it is written as 2.1458081 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 21458080 positive integers (up to 21458081) that are relatively prime to 21458081.
21458081 has 2 divisors, whose sum is 21458082
The reverse of 21458081 is 18085412
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million four hundred fifty-eight thousand eighty-one
Scientific notation
2.1458081 × 10^7
Engineering notation
2.1458081 × 10^6
Prime Factorization
21458081
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21458081
Product of the distinct prime numbers
The prime factorization of 21458081 is 21458081.
Since it has a total of 1 prime factors.
2 , 5 , 64 , 85 , 430 , 468 , 6303 , 3407 , 14512 , 39391 , 625947 , 727398 , 665697 , 2855058 , 14730911 , 96426477 , 972446849 , 184963575 , 6664468253 , 5574960108
n×2
42916162
n×3
64374243
n×4
85832324
n×5
107290405
n÷2
10729040.5
n÷3
7152693.6666667
n÷3
5364520.25
n÷5
4291616.2
n2
460449240202561
n3
9.880357092655E+21
n4
2.1201350280312E+29
n5
4.549402916243E+36
2 √n
4632.2868002748
3 √n
277.88405443898
4 √n
68.06090507975
5 √n
29.262954771476
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21458082
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10729041
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4632.2869082128
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999906795
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21458081 can be divided by 2 positive divisors.
The sum of these divisors (counting 21458081) is 21458082, the average is 10729041.
Base
System
Value
2
Binary
1010001110110110010100001
3
Ternary
1111101011221202
4
Quaternary
1101312302201
5
Quinary
20443124311
6
Senary
2043530545
8
Octal
121666241
10
Decimal
21458081
12
Duodecimal
7229a55
16
Hexadecimal
1476ca1
20
Vigesimal
6e2541
36
Base36
crx5t
md5
6f600b3f76d669491be32de004f6b640
sha1
37ebd41f286f1961699325d41c7d9af4b2bb5fce
sha256
0b3053a3d3d60a277b436994a5775cae918369b5efead55cec3cdacf845148cb
sha512
63589de3134b61abfc216dd0fa650ff6160d89fc8f4ffc10f77605a0e34237b1fc5966d88fbfa8db5ac76780e0b82ca638a113f6021a8d4da40879f096ef1f3b
ripemd-160
b7ac9802d18a7345d3f2b020015723f6856c6f21
Diameter
42916162
Circumference
134825099.25947
Area
1.4465439503714E+15
Volume
4.1386743009505E+22
Surface area
5.7861758014855E+15
Circumference
134825099.25947
Perimeter
85832324
Area
460449240202561
Diagonal
30346309.1727
Surface area
2762695441215366
Volume
9.880357092655E+21
Space diagonal
37166486.524928
Perimeter
64374243
Area
1.9938036958433E+14
Altitude
18583243.262464
Surface area
1.9938036958433E+14
Volume
1.1644112501268E+21
Height
10115436.3909