21490431 is an odd 8-digits composite number following 21490430
and preceding 21490432 . In scientific notation, it is written as 2.1490431 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13484160 positive integers (up to 21490431) that are relatively prime to 21490431.
21490431 has 8 divisors, whose sum is 30339504
The reverse of 21490431 is 13409412
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million four hundred ninety thousand four hundred thirty-one
Scientific notation
2.1490431 × 10^7
Engineering notation
2.1490431 × 10^6
Prime Factorization
3 × 17 × 421381
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21490431
Product of the distinct prime numbers
The prime factorization of 21490431 is 3 × 17 × 421381.
Since it has a total of 3 prime factors.
1 , 7 , 69 , 53 , 650 , 616 , 1192 , 9151 , 37620 , 4918 , 240100 , 601185 , 6782603 , 2685251 , 53318011 , 71744303 , 957964087 , 514854956 , 13204417 , 4931347392
n×2
42980862
n×3
64471293
n×4
85961724
n×5
107452155
n÷2
10745215.5
n÷3
7163477
n÷3
5372607.75
n÷5
4298086.2
n2
461838624565761
n3
9.9251110943654E+21
n4
2.1329491514079E+29
n5
4.5837996564841E+36
2 √n
4635.777281104
3 √n
278.02362944604
4 √n
68.086542584449
5 √n
29.271772766286
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
-21490430
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 21490431 can be divided by 8 positive divisors.
The sum of these divisors (counting 21490431) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110101011111111
3
Ternary
1111102211022220
4
Quaternary
1101332223333
5
Quinary
21000143211
6
Senary
2044340423
8
Octal
121765377
10
Decimal
21490431
12
Duodecimal
7244713
16
Hexadecimal
147eaff
20
Vigesimal
6e661b
36
Base36
csm4f
md5
6fced4d32659e2549b8d11d56d2dc3f9
sha1
a033eb0abe16d6d6a328671fe6cbb629c383f239
sha256
02581833b75e6b88ccc7854b470f51616134def2eba24637d5d0250fc945fb79
sha512
ddaebc1aaf70c688c19d52395c4f1777e610c84faeb7398ca53fe9920090780a7e5de37610895f99fb090364a40e92a8184e53d869a70b454ea67bea32783bff
ripemd-160
455faf0040bee16adefd202fcc8997f8923baccc
Diameter
42980862
Circumference
135028360.30416
Area
1.4509088300798E+15
Volume
4.1574208133494E+22
Surface area
5.8036353203192E+15
Circumference
135028360.30416
Perimeter
85961724
Area
461838624565761
Diagonal
30392058.981443
Surface area
2771031747394566
Volume
9.9251110943654E+21
Space diagonal
37222518.368553
Perimeter
64471293
Area
1.9998199066141E+14
Altitude
18611259.184277
Surface area
1.9998199066141E+14
Volume
1.1696855598093E+21
Height
10130686.327148