18391312 is an even 8-digits composite number following 18391311
and preceding 18391313 . In scientific notation, it is written as 1.8391312 × 10^7.
The sum of its digits is 28. It has a total of 5 prime factors and 10 positive divisors.
There are 9195648 positive integers (up to 18391312) that are relatively prime to 18391312.
18391312 has 10 divisors, whose sum is 35633198
The reverse of 18391312 is 21319381
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighteen million three hundred ninety-one thousand three hundred twelve
Scientific notation
1.8391312 × 10^7
Engineering notation
1.8391312 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 1149457
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2298914
Product of the distinct prime numbers
The prime factorization of 18391312 is 2 × 2 × 2 × 2 × 1149457.
Since it has a total of 5 prime factors.
7 , 1 , 82 , 82 , 445 , 746 , 9882 , 1162 , 76548 , 71832 , 412837 , 422085 , 9596027 , 9450762 , 41467352 , 26003564 , 695082750 , 585395427 , 7133047456 , 4791213181
n×2
36782624
n×3
55173936
n×4
73565248
n×5
91956560
n÷2
9195656
n÷3
6130437.3333333
n÷3
4597828
n÷5
3678262.4
n2
338240357081344
n3
6.2206839380744E+21
n4
1.1440653915852E+29
n5
2.1040863565045E+36
2 √n
4288.5092981128
3 √n
263.95966632057
4 √n
65.486710851232
5 √n
28.374129230858
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18391311
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18391312 can be divided by 10 positive divisors.
The sum of these divisors (counting 18391312) is 1, the average is 0.1.
Base
System
Value
2
Binary
1000110001010000100010000
3
Ternary
1021121101010201
4
Quaternary
1012022010100
5
Quinary
14202010222
6
Senary
1454104544
8
Octal
106120420
10
Decimal
18391312
12
Duodecimal
61ab154
16
Hexadecimal
118a110
20
Vigesimal
5eii5c
36
Base36
ay6ts
md5
f47928a8937039b537c811c86b53f8fd
sha1
36bebe49f060e1f3ab910d40f59b2c7f419b52df
sha256
c24c9f218a0d158e0e35a7dde3b0d01048b5f9785c46d4b4dbf60783900d48df
sha512
a13c7e23373f7e616d6a0a2ae9e4ebe97d7f9f70bec1f406606af6571d852e6227441e37ac11617933d7d9fb1b37e5d407ad894cd6f6dbc551df95c61ba5e659
ripemd-160
0062c79e418830a8781ccb213f8a37a383cc5d3c
Diameter
36782624
Circumference
115556021.33816
Area
1.0626134209543E+15
Volume
2.6057139946878E+22
Surface area
4.2504536838174E+15
Circumference
115556021.33816
Perimeter
73565248
Area
338240357081344
Diagonal
26009242.860235
Surface area
2029442142488064
Volume
6.2206839380744E+21
Space diagonal
31854686.801851
Perimeter
55173936
Area
1.4646237090878E+14
Altitude
15927343.400926
Surface area
1.4646237090878E+14
Volume
7.3311463270511E+20
Height
8669747.6200784