381639 is an odd 6-digits composite number following 381638
and preceding 381640 . In scientific notation, it is written as 3.81639 × 10^5.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 243320 positive integers (up to 381639) that are relatively prime to 381639.
381639 has 8 divisors, whose sum is 531072
The reverse of 381639 is 936183
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 30
Digital Root 3
Name
three hundred eighty-one thousand six hundred thirty-nine
Scientific notation
3.81639 × 10^5
Engineering notation
3.81639 × 10^3
Prime Factorization
3 × 23 × 5531
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
381639
Product of the distinct prime numbers
The prime factorization of 381639 is 3 × 23 × 5531.
Since it has a total of 3 prime factors.
2 , 7 , 74 , 77 , 524 , 130 , 5631 , 3465 , 32040 , 91783 , 957713 , 355559 , 6946566 , 2203815 , 4528738 , 57608912 , 970456838 , 806733983 , 5385764664 , 7982758035
n×2
763278
n×3
1144917
n×4
1526556
n×5
1908195
n÷2
190819.5
n÷3
127213
n÷3
95409.75
n÷5
76327.8
n2
145648326321
n3
55585081608820119
n4
2.1213434960109E+22
n5
8.0958741047408E+27
2 √n
617.76937444325
3 √n
72.535551331427
4 √n
24.854966796261
5 √n
13.07165418221
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
-381638
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 381639 can be divided by 8 positive divisors.
The sum of these divisors (counting 381639) is 1, the average is 0.125.
Base
System
Value
2
Binary
1011101001011000111
3
Ternary
201101111210
4
Quaternary
1131023013
5
Quinary
44203024
6
Senary
12102503
8
Octal
1351307
10
Decimal
381639
12
Duodecimal
164a33
16
Hexadecimal
5d2c7
20
Vigesimal
27e1j
36
Base36
86h3
md5
36ee7679b2b537daa7dc0a6a88917846
sha1
cef7d498480ef82c87bee85afb87d4811cc5a566
sha256
7467785540ece578616f4d4a7adcafa337e869beb26d55e0c61f9e92a46b1401
sha512
86d36b40e2a600d1e41db7eadfd88f7be415b3fbf347ed51d99aa88d762bb3b40752e2daa91c9d89a12b588cc706fcedba22fbf924a22e9a20e2cb3b1937cdeb
ripemd-160
c0cf597cbe01116a9d66a3ea471e25fa2a8bfec9
Diameter
763278
Circumference
2397908.5574467
Area
457567711977.7
Volume
2.3283424537528E+17
Surface area
1830270847910.8
Circumference
2397908.5574467
Perimeter
1526556
Area
145648326321
Diagonal
539719.04973051
Surface area
873889957926
Volume
55585081608820119
Space diagonal
661018.13814978
Perimeter
1144917
Area
63067575306.336
Altitude
330509.06907489
Surface area
63067575306.336
Volume
6.5507646897341E+15
Height
179906.34991017