21490830 is an even 8-digits composite number following 21490829
and preceding 21490831 . In scientific notation, it is written as 2.1490830 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors.
There are 5664384 positive integers (up to 21490830) that are relatively prime to 21490830.
21490830 has 32 divisors, whose sum is 46379520
The reverse of 21490830 is 03809412
Previous prime number is 89
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million four hundred ninety thousand eight hundred thirty
Scientific notation
2.1490830 × 10^7
Engineering notation
2.1490830 × 10^6
Prime Factorization
2 × 15 × 3 × 89 × 2683
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21490830
Product of the distinct prime numbers
The prime factorization of 21490830 is 2 × 15 × 3 × 89 × 2683.
Since it has a total of 5 prime factors.
5 , 5 , 37 , 3 , 479 , 131 , 806 , 8985 , 3380 , 59539 , 296292 , 409614 , 7474918 , 2294210 , 37956398 , 30923020 , 999737600 , 192830142 , 9282711819 , 4670320940
n×2
42981660
n×3
64472490
n×4
85963320
n×5
107454150
n÷2
10745415
n÷3
7163610
n÷3
5372707.5
n÷5
4298166
n2
461855774088900
n3
9.925663925463E+21
n4
2.1331075605926E+29
n5
4.584225195641E+36
2 √n
4635.8203157586
3 √n
278.02535006829
4 √n
68.086858612794
5 √n
29.271881459784
1 , 2 , 3 , 6 , 15 , 30 , 45 , 89 , 90 , 178 , 267 , 534 , 1335 , 2670 , 2683 , 4005 , 5366 , 8010 , 8049 , 16098 , 40245 , 80490 , 120735 , 238787 , 241470 , 477574 , 716361 , 1432722 , 3581805 , 7163610 , 10745415 , 21490830
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21490829
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21490830 can be divided by 32 positive divisors.
The sum of these divisors (counting 21490830) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010001111110110010001110
3
Ternary
1111102211212200
4
Quaternary
1101332302032
5
Quinary
21000201310
6
Senary
2044342330
8
Octal
121766216
10
Decimal
21490830
12
Duodecimal
72449a6
16
Hexadecimal
147ec8e
20
Vigesimal
6e671a
36
Base36
csmfi
md5
540620fa4763de025419b317367a7aeb
sha1
a383bc26f7dde204a5a55bb4b5155b437827e568
sha256
daab5ac78d67b99eefbef38391afcc815c1594007ab448f556c872914e7c83c2
sha512
5796024d167c894cf6e632d62e156e963d81ea1e6e1d6c4612420af891095a39985159f8691a90b559573f44ee1e31897a9308bc52c0debf5095b81b75474392
ripemd-160
fbd720ccffcc1fc459a62329b6ba72b75d7663de
Diameter
42981660
Circumference
135030867.29509
Area
1.4509627068957E+15
Volume
4.1576523826981E+22
Surface area
5.8038508275829E+15
Circumference
135030867.29509
Perimeter
85963320
Area
461855774088900
Diagonal
30392623.252655
Surface area
2771134644533400
Volume
9.925663925463E+21
Space diagonal
37223209.456825
Perimeter
64472490
Area
1.9998941662276E+14
Altitude
18611604.728413
Surface area
1.9998941662276E+14
Volume
1.1697507115789E+21
Height
10130874.417552