21231618 is an even 8-digits composite number following 21231617
and preceding 21231619 . In scientific notation, it is written as 2.1231618 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 7047360 positive integers (up to 21231618) that are relatively prime to 21231618.
21231618 has 16 divisors, whose sum is 42642336
The reverse of 21231618 is 81613212
Previous prime number is 241
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million two hundred thirty-one thousand six hundred eighteen
Scientific notation
2.1231618 × 10^7
Engineering notation
2.1231618 × 10^6
Prime Factorization
2 × 3 × 241 × 14683
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21231618
Product of the distinct prime numbers
The prime factorization of 21231618 is 2 × 3 × 241 × 14683.
Since it has a total of 4 prime factors.
7 , 4 , 27 , 37 , 315 , 156 , 5605 , 3918 , 50181 , 49360 , 33758 , 901437 , 6802875 , 5901138 , 29350573 , 72342922 , 523325099 , 595070584 , 3109562188 , 891970848
n×2
42463236
n×3
63694854
n×4
84926472
n×5
106158090
n÷2
10615809
n÷3
7077206
n÷3
5307904.5
n÷5
4246323.6
n2
450781602897924
n3
9.5708227941564E+21
n4
2.0320405351122E+29
n5
4.3143508402018E+36
2 √n
4607.7779894435
3 √n
276.90302313233
4 √n
67.880615712024
5 √n
29.200925638964
1 , 2 , 3 , 6 , 241 , 482 , 723 , 1446 , 14683 , 29366 , 44049 , 88098 , 3538603 , 7077206 , 10615809 , 21231618
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21231617
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21231618 can be divided by 16 positive divisors.
The sum of these divisors (counting 21231618) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000111111100000000010
3
Ternary
1110221200022020
4
Quaternary
1100333200002
5
Quinary
20413402433
6
Senary
2035022310
8
Octal
120774002
10
Decimal
21231618
12
Duodecimal
713a996
16
Hexadecimal
143f802
20
Vigesimal
6cdj0i
36
Base36
cn2f6
md5
2e39bc4e69df61f49df5fc3be20d931a
sha1
323cc117905637695a59a7c7df871c06de2e100c
sha256
7c92e7804eb7f505bbf999ec56874b0d27476f61d8e957c7b6832a8926ccb8f0
sha512
af8a1e292f7d1771a910728f81b125355e61d079d2af10ef76e0f050a173b6644e10ac3bd8718a2cb18ae4289e2af5da9e391ff6ac5e867b6e6b00fc724c5c90
ripemd-160
e68e366ba781511b840eec3fc5d7dcc9fa24dbaf
Diameter
42463236
Circumference
133402190.26525
Area
1.4161721720375E+15
Volume
4.0090168771909E+22
Surface area
5.6646886881502E+15
Circumference
133402190.26525
Perimeter
84926472
Area
450781602897924
Diagonal
30026042.126725
Surface area
2704689617387544
Volume
9.5708227941564E+21
Space diagonal
36774241.102894
Perimeter
63694854
Area
1.9519415983414E+14
Altitude
18387120.551447
Surface area
1.9519415983414E+14
Volume
1.1279322832138E+21
Height
10008680.708908