21534418 is an even 8-digits composite number following 21534417
and preceding 21534419 . In scientific notation, it is written as 2.1534418 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 10767208 positive integers (up to 21534418) that are relatively prime to 21534418.
21534418 has 4 divisors, whose sum is 32301630
The reverse of 21534418 is 81443512
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 five hundred thirty-four thousand four hundred eighteen
Scientific notation
2.1534418 × 10^7
Engineering notation
2.1534418 × 10^6
Prime Factorization
2 × 10767209
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21534418
Product of the distinct prime numbers
The prime factorization of 21534418 is 2 × 10767209.
Since it has a total of 2 prime factors.
8 , 4 , 66 , 81 , 732 , 307 , 1453 , 1207 , 83717 , 81006 , 222852 , 438831 , 5051452 , 2958953 , 20534835 , 79769738 , 304690026 , 856864911 , 922330395 , 1162851003
n×2
43068836
n×3
64603254
n×4
86137672
n×5
107672090
n÷2
10767209
n÷3
7178139.3333333
n÷3
5383604.5
n÷5
4306883.6
n2
463731158598724
n3
9.9861806088892E+21
n4
2.1504658745531E+29
n5
4.6309031037363E+36
2 √n
4640.5191519915
3 √n
278.21318809287
4 √n
68.12135606395
5 √n
29.283745765681
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
-21534417
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 21534418 can be divided by 4 positive divisors.
The sum of these divisors (counting 21534418) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001001011011010010
3
Ternary
1111112001200001
4
Quaternary
1102021123102
5
Quinary
21003100133
6
Senary
2045320214
8
Octal
122113322
10
Decimal
21534418
12
Duodecimal
726606a
16
Hexadecimal
14896d2
20
Vigesimal
6ebg0i
36
Base36
ctk2a
md5
e82b9ccd29bb98205f44a28318e3c9a8
sha1
cd19b3dc17cc4a0685fd440de19bc0463606564e
sha256
7136397b02516e4bfd3f7861c3a40ccea1c74c29e80b1a4f7eb15c73e592cf81
sha512
658121ab6b125d1535e095d9db27f58cde703b4d651b137a6fcd09966907acd5b011a21f8fea866907cc3d7da0b17d527012e6d4c09b5db783911b75c9b8a9f8
ripemd-160
9ad47df33c60ba41449a6a5634d402bfd2e84854
Diameter
43068836
Circumference
135304738.77626
Area
1.4568544010944E+15
Volume
4.1830015517743E+22
Surface area
5.8274176043777E+15
Circumference
135304738.77626
Perimeter
86137672
Area
463731158598724
Diagonal
30454265.993411
Surface area
2782386951592344
Volume
9.9861806088892E+21
Space diagonal
37298706.087426
Perimeter
64603254
Area
2.0080148193644E+14
Altitude
18649353.043713
Surface area
2.0080148193644E+14
Volume
1.1768826711165E+21
Height
10151421.997804