21122018 is an even 8-digits composite number following 21122017
and preceding 21122019 . In scientific notation, it is written as 2.1122018 × 10^7.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 10403316 positive integers (up to 21122018) that are relatively prime to 21122018.
21122018 has 8 divisors, whose sum is 32156112
The reverse of 21122018 is 81022112
Previous prime number is 67
Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million one hundred twenty-two thousand eighteen
Scientific notation
2.1122018 × 10^7
Engineering notation
2.1122018 × 10^6
Prime Factorization
2 × 67 × 157627
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21122018
Product of the distinct prime numbers
The prime factorization of 21122018 is 2 × 67 × 157627.
Since it has a total of 3 prime factors.
2 , 6 , 30 , 8 , 953 , 78 , 4223 , 3081 , 54939 , 34316 , 364356 , 774441 , 7250564 , 5223467 , 95491447 , 685791 , 813472988 , 256919069 , 6310373699 , 5646159739
n×2
42244036
n×3
63366054
n×4
84488072
n×5
105610090
n÷2
10561009
n÷3
7040672.6666667
n÷3
5280504.5
n÷5
4224403.6
n2
446139644392324
n3
9.4233695993683E+21
n4
1.9904058229851E+29
n5
4.2041387620396E+36
2 √n
4595.8696674297
3 √n
276.42573272946
4 √n
67.79284377742
5 √n
29.170715502682
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
-21122017
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 21122018 can be divided by 8 positive divisors.
The sum of these divisors (counting 21122018) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100100101111100010
3
Ternary
1110202002221222
4
Quaternary
1100210233202
5
Quinary
20401401033
6
Senary
2032415042
8
Octal
120445742
10
Decimal
21122018
12
Duodecimal
70a7482
16
Hexadecimal
1424be2
20
Vigesimal
6c050i
36
Base36
ckpuq
md5
8652c5db8dbb89d5f789230c1dbfa90c
sha1
03222dd1177394be34c521d52bd551a56cd70c98
sha256
d5570c990f4735bb8aa66c34c35fd6d39be91b129e82b2bccea325dfc10df625
sha512
2a8c36a259c2ac9c9a77bb71a1620b2393a4a5885d921794a99971a9a9263123e76ff9f85b2ab0238eaa555860c6a22fe266a94b52c8740cb5038b8173e2fc72
ripemd-160
f82b5febc59d065db78033bee8a1ab36463dd944
Diameter
42244036
Circumference
132713553.15558
Area
1.4015890292981E+15
Volume
3.9472518273916E+22
Surface area
5.6063561171924E+15
Circumference
132713553.15558
Perimeter
84488072
Area
446139644392324
Diagonal
29871044.320289
Surface area
2676837866353944
Volume
9.4233695993683E+21
Space diagonal
36584408.334384
Perimeter
63366054
Area
1.9318413283955E+14
Altitude
18292204.167192
Surface area
1.9318413283955E+14
Volume
1.1105547575567E+21
Height
9957014.7734295