18808639 is an odd 8-digits prime number following 18808638
and preceding 18808640 . In scientific notation, it is written as 1.8808639 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 18808638 positive integers (up to 18808639) that are relatively prime to 18808639.
18808639 has 2 divisors, whose sum is 18808640
The reverse of 18808639 is 93680881
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighteen million eight hundred eight thousand six hundred thirty-nine
Scientific notation
1.8808639 × 10^7
Engineering notation
1.8808639 × 10^6
Prime Factorization
18808639
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18808639
Product of the distinct prime numbers
The prime factorization of 18808639 is 18808639.
Since it has a total of 1 prime factors.
10 , 6 , 29 , 51 , 218 , 881 , 6417 , 4296 , 1282 , 56964 , 597607 , 836504 , 9232494 , 1635725 , 17796945 , 97758690 , 625965240 , 918970100 , 7426567697 , 5751186937
n×2
37617278
n×3
56425917
n×4
75234556
n×5
94043195
n÷2
9404319.5
n÷3
6269546.3333333
n÷3
4702159.75
n÷5
3761727.8
n2
353764901032321
n3
6.6538363143877E+21
n4
1.2514960520241E+29
n5
2.3538937452446E+36
2 √n
4336.8927817044
3 √n
265.94130180107
4 √n
65.855089261988
5 √n
28.501746574306
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18808640
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9404320
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4336.8928969943
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998936659
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18808639 can be divided by 2 positive divisors.
The sum of these divisors (counting 18808639) is 18808640, the average is 9404320.
Base
System
Value
2
Binary
1000111101111111100111111
3
Ternary
1022101120121021
4
Quaternary
1013233330333
5
Quinary
14303334024
6
Senary
1511045011
8
Octal
107577477
10
Decimal
18808639
12
Duodecimal
6370767
16
Hexadecimal
11eff3f
20
Vigesimal
5hb1bj
36
Base36
b74u7
md5
b72c162e59ed8d275635cda4806dfab8
sha1
7233f0be2ca46479cdd7f204b7c9cbd777d09903
sha256
d210ae4bf0cfb434e049673aebba376c93b424b76ec1e4c25203e1c92f840010
sha512
ad2be37e6d6d830d18131cb821f70a8c4cb1cc9b5c3eb2cbc3ecd607f8a35c0afc623b2155c3d9a675cc8c0a2233b54ebf16ca00396b212c952048d470e7d837
ripemd-160
3b22c3a435e6cbccc9e5ab3a02321308d007824d
Diameter
37617278
Circumference
118178164.21284
Area
1.1113852141811E+15
Volume
2.7871524377959E+22
Surface area
4.4455408567242E+15
Circumference
118178164.21284
Perimeter
75234556
Area
353764901032321
Diagonal
26599432.36358
Surface area
2122589406193926
Volume
6.6538363143877E+21
Space diagonal
32577518.369221
Perimeter
56425917
Area
1.5318469563064E+14
Altitude
16288759.184611
Surface area
1.5318469563064E+14
Volume
7.8416212980147E+20
Height
8866477.4545265