21492830 is an even 8-digits composite number following 21492829
and preceding 21492831 . In scientific notation, it is written as 2.1492830 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 8597128 positive integers (up to 21492830) that are relatively prime to 21492830.
21492830 has 8 divisors, whose sum is 38687112
The reverse of 21492830 is 03829412
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million four hundred ninety-two thousand eight hundred thirty
Scientific notation
2.1492830 × 10^7
Engineering notation
2.1492830 × 10^6
Prime Factorization
2 × 5 × 2149283
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492830
Product of the distinct prime numbers
The prime factorization of 21492830 is 2 × 5 × 2149283.
Since it has a total of 3 prime factors.
10 , 10 , 59 , 51 , 513 , 68 , 2539 , 4691 , 75782 , 68192 , 829651 , 626869 , 7148982 , 4338379 , 94945210 , 24533278 , 742625013 , 401271196 , 2334046493 , 7320327491
n×2
42985660
n×3
64478490
n×4
85971320
n×5
107464150
n÷2
10746415
n÷3
7164276.6666667
n÷3
5373207.5
n÷5
4298566
n2
461941741408900
n3
9.9284353180054E+21
n4
2.1339017245589E+29
n5
4.5863587002651E+36
2 √n
4636.0360222932
3 √n
278.03397442035
4 √n
68.088442648464
5 √n
29.272426265022
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
-21492829
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 21492830 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492830) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111010001011110
3
Ternary
1111102221121202
4
Quaternary
1101333101132
5
Quinary
21000232310
6
Senary
2044355502
8
Octal
121772136
10
Decimal
21492830
12
Duodecimal
7245b92
16
Hexadecimal
147f45e
20
Vigesimal
6e6c1a
36
Base36
csnz2
md5
00d74433e418446fcc798a9a835193b5
sha1
c57abc52a631b1ab0275c4a02dce7b16d1c5ec11
sha256
02aa2f4940a41cbad2e61d9586067e3ce8d4d38a8e595d88a1ea1fb97615e22e
sha512
333b9e9e50587b35f05206795ed482c0a678fdf91dc1fdfd5bf500c5b3e215a5311d2054e7d64252547eb1edcc107cd1254be745d25532fc523d4be43e3af8ff
ripemd-160
c0587ed8063d57d1d70a53485982cb3976b36396
Diameter
42985660
Circumference
135043433.66571
Area
1.4512327811967E+15
Volume
4.1588132608916E+22
Surface area
5.8049311247867E+15
Circumference
135043433.66571
Perimeter
85971320
Area
461941741408900
Diagonal
30395451.679779
Surface area
2771650448453400
Volume
9.9284353180054E+21
Space diagonal
37226673.558441
Perimeter
64478490
Area
2.0002664156426E+14
Altitude
18613336.77922
Surface area
2.0002664156426E+14
Volume
1.1700773233223E+21
Height
10131817.226593