21254518 is an even 8-digits composite number following 21254517
and preceding 21254519 . In scientific notation, it is written as 2.1254518 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 10627258 positive integers (up to 21254518) that are relatively prime to 21254518.
21254518 has 4 divisors, whose sum is 31881780
The reverse of 21254518 is 81545212
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million two hundred fifty-four thousand five hundred eighteen
Scientific notation
2.1254518 × 10^7
Engineering notation
2.1254518 × 10^6
Prime Factorization
2 × 10627259
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21254518
Product of the distinct prime numbers
The prime factorization of 21254518 is 2 × 10627259.
Since it has a total of 2 prime factors.
2 , 2 , 62 , 34 , 779 , 709 , 814 , 7496 , 28559 , 59116 , 966012 , 271178 , 7278068 , 1210260 , 92146470 , 68586090 , 804423706 , 736821595 , 7946919931 , 203121058
n×2
42509036
n×3
63763554
n×4
85018072
n×5
106272590
n÷2
10627259
n÷3
7084839.3333333
n÷3
5313629.5
n÷5
4250903.6
n2
451754535412324
n3
9.6018249045029E+21
n4
2.040821602656E+29
n5
4.3376679488442E+36
2 √n
4610.262248506
3 √n
277.00254138867
4 √n
67.898911983227
5 √n
29.207222030361
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21254517
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21254518 can be divided by 4 positive divisors.
The sum of these divisors (counting 21254518) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000101000101110110
3
Ternary
1110222211201101
4
Quaternary
1101011011312
5
Quinary
20420121033
6
Senary
2035320314
8
Octal
121050566
10
Decimal
21254518
12
Duodecimal
715009a
16
Hexadecimal
1445176
20
Vigesimal
6cgg5i
36
Base36
cnk3a
md5
4a6f0c845e6c3cbe19ee9cea5ce6eb65
sha1
85dde3728f3537d5467ece2d4b28bda6b0e07e4f
sha256
e72c8773a5d5d704e57f9425c1c170fc8bdc79d2c784ee0971b91e672177bb19
sha512
09a237594e7c6c9dee512a21b14edbcf50dc42061ef2d0b5a8ba29434b0ed7d8dd8d875fa9bc4dd91d7d2ba2ae2b357c6b63c026b7197aa01a4d4458ea97c8bf
ripemd-160
c1135cd6dbe3bc3c232ea3cb5599598af3b4b3f7
Diameter
42509036
Circumference
133546075.20878
Area
1.4192287296772E+15
Volume
4.0220030108056E+22
Surface area
5.6769149187089E+15
Circumference
133546075.20878
Perimeter
85018072
Area
451754535412324
Diagonal
30058427.617303
Surface area
2710527212473944
Volume
9.6018249045029E+21
Space diagonal
36813905.066387
Perimeter
63763554
Area
1.9561545197095E+14
Altitude
18406952.533194
Surface area
1.9561545197095E+14
Volume
1.1315859169566E+21
Height
10019475.872434