21491258 is an even 8-digits composite number following 21491257
and preceding 21491259 . In scientific notation, it is written as 2.1491258 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 10729600 positive integers (up to 21491258) that are relatively prime to 21491258.
21491258 has 8 divisors, whose sum is 32284980
The reverse of 21491258 is 85219412
Previous prime number is 701
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred ninety-one thousand two hundred fifty-eight
Scientific notation
2.1491258 × 10^7
Engineering notation
2.1491258 × 10^6
Prime Factorization
2 × 701 × 15329
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491258
Product of the distinct prime numbers
The prime factorization of 21491258 is 2 × 701 × 15329.
Since it has a total of 3 prime factors.
9 , 8 , 54 , 37 , 625 , 990 , 8601 , 3655 , 97877 , 97008 , 254149 , 137629 , 5046426 , 8259447 , 40917488 , 70151078 , 393580936 , 614593062 , 75770344 , 4284594161
n×2
42982516
n×3
64473774
n×4
85965032
n×5
107456290
n÷2
10745629
n÷3
7163752.6666667
n÷3
5372814.5
n÷5
4298251.6
n2
461874170422564
n3
9.9262569600873E+21
n4
2.1332774930353E+29
n5
4.5846816988415E+36
2 √n
4635.8664778011
3 √n
278.02719572463
4 √n
68.087197605725
5 √n
29.271998051516
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21491257
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491258 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491258) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110111000111010
3
Ternary
1111102212110112
4
Quaternary
1101332320322
5
Quinary
21000210013
6
Senary
2044344322
8
Octal
121767072
10
Decimal
21491258
12
Duodecimal
72450a2
16
Hexadecimal
147ee3a
20
Vigesimal
6e682i
36
Base36
csmre
md5
247f78597b8212f2f33f4a96d2fd0b06
sha1
12caf195306cf2e4d1f8bf1f5dd422a1bb52784c
sha256
f57eb086d394c5012bd4032c87ea10137403d7fab18db556694062d07cabc68f
sha512
875244fa0098b99135f04e32b9ec1736c3fa330714d1c322ded4348b8ce3819c3ca5bf09975cf4ff0c933f9a5f3ff6aa33406ceb32afee325cee87dec5fa7cbe
ripemd-160
3d557a3cd3a2006f056e239b6adf61fed55f2c1a
Diameter
42982516
Circumference
135033556.49841
Area
1.4510205006824E+15
Volume
4.1579007924606E+22
Surface area
5.8040820027296E+15
Circumference
135033556.49841
Perimeter
85965032
Area
461874170422564
Diagonal
30393228.536059
Surface area
2771245022535384
Volume
9.9262569600873E+21
Space diagonal
37223950.774571
Perimeter
64473774
Area
1.999973824689E+14
Altitude
18611975.387286
Surface area
1.999973824689E+14
Volume
1.1698206013796E+21
Height
10131076.178686