21392018 is an even 8-digits composite number following 21392017
and preceding 21392019 . In scientific notation, it is written as 2.1392018 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 10066816 positive integers (up to 21392018) that are relatively prime to 21392018.
21392018 has 8 divisors, whose sum is 33975612
The reverse of 21392018 is 81029312
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million three hundred ninety-two thousand eighteen
Scientific notation
2.1392018 × 10^7
Engineering notation
2.1392018 × 10^6
Prime Factorization
2 × 17 × 629177
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21392018
Product of the distinct prime numbers
The prime factorization of 21392018 is 2 × 17 × 629177.
Since it has a total of 3 prime factors.
2 , 7 , 90 , 92 , 439 , 412 , 4126 , 4558 , 12468 , 87829 , 969749 , 968124 , 9932536 , 9255263 , 704620 , 17123892 , 361154491 , 493145866 , 6853326060 , 7388731589
n×2
42784036
n×3
64176054
n×4
85568072
n×5
106960090
n÷2
10696009
n÷3
7130672.6666667
n÷3
5348004.5
n÷5
4278403.6
n2
457618434112324
n3
9.7893817796626E+21
n4
2.0941463123942E+29
n5
4.4798015609369E+36
2 √n
4625.1505921429
3 √n
277.59858737692
4 √n
68.008459710119
5 √n
29.244914167716
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
-21392017
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 21392018 can be divided by 8 positive divisors.
The sum of these divisors (counting 21392018) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001100110101010010010
3
Ternary
1111020211022222
4
Quaternary
1101212222102
5
Quinary
20434021033
6
Senary
2042301042
8
Octal
121465222
10
Decimal
21392018
12
Duodecimal
71b7782
16
Hexadecimal
1466a92
20
Vigesimal
6de00i
36
Base36
cqi6q
md5
aea4924466731c888d1a078b5663f34e
sha1
00544c89e265bd583e08090f65eb89229e9be516
sha256
58923ce4c2ca54282b6dba8f0a7734c159b4c07bf1636198f6aa206ec5380202
sha512
857448604f60e1ee02da6b9e280038b7162db9e4bea3bf7f14078203e5375da0b83d83f92faab83649b794f73e65754095cce1fdfb1051ff5c15193ba69f79a7
ripemd-160
7025bf748decb41e1eb255fda6480b48c3edbd4a
Diameter
42784036
Circumference
134410013.18852
Area
1.4376507107545E+15
Volume
4.1005666509565E+22
Surface area
5.7506028430182E+15
Circumference
134410013.18852
Perimeter
85568072
Area
457618434112324
Diagonal
30252881.982129
Surface area
2745710604673944
Volume
9.7893817796626E+21
Space diagonal
37052062.052428
Perimeter
64176054
Area
1.9815459459066E+14
Altitude
18526031.026214
Surface area
1.9815459459066E+14
Volume
1.1536897066706E+21
Height
10084293.994043