387890 is an even 6-digits composite number following 387889
and preceding 387891 . In scientific notation, it is written as 3.87890 × 10^5.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 152880 positive integers (up to 387890) that are relatively prime to 387890.
387890 has 16 divisors, whose sum is 708480
The reverse of 387890 is 098783
Previous prime number is 79
Is Prime? no
Number parity even
Number length 6
Sum of Digits 35
Digital Root 8
Name
three hundred eighty-seven thousand eight hundred ninety
Scientific notation
3.87890 × 10^5
Engineering notation
3.87890 × 10^3
Prime Factorization
2 × 5 × 79 × 491
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
387890
Product of the distinct prime numbers
The prime factorization of 387890 is 2 × 5 × 79 × 491.
Since it has a total of 4 prime factors.
5 , 6 , 15 , 31 , 803 , 490 , 4679 , 4376 , 71590 , 25101 , 706454 , 227294 , 4742502 , 1190135 , 43940041 , 61040237 , 808161277 , 114146678 , 2070842723 , 8603773452
n×2
775780
n×3
1163670
n×4
1551560
n×5
1939450
n÷2
193945
n÷3
129296.66666667
n÷3
96972.5
n÷5
77578
n2
150458652100
n3
58361406563069000
n4
2.2637805991749E+22
n5
8.7809785661395E+27
2 √n
622.80815665821
3 √n
72.929437037688
4 √n
24.956124632206
5 √n
13.114197404032
1 , 2 , 5 , 10 , 79 , 158 , 395 , 491 , 790 , 982 , 2455 , 4910 , 38789 , 77578 , 193945 , 387890
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
-387889
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 387890 can be divided by 16 positive divisors.
The sum of these divisors (counting 387890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1011110101100110010
3
Ternary
201201002022
4
Quaternary
1132230302
5
Quinary
44403030
6
Senary
12151442
8
Octal
1365462
10
Decimal
387890
12
Duodecimal
168582
16
Hexadecimal
5eb32
20
Vigesimal
289ea
36
Base36
8baq
md5
a6742bf89f24a98ed87292369ecba5cb
sha1
69b8b88f7cb78a6e96f14ec7faa16e55d827e7c4
sha256
8db97820c11cdfa65756c3b753bdf085c1d974d1874e01ac837504130323d64b
sha512
68b2800c0ebb1ebe5fb0a59788d334b7e25cffa1be05d7d8c30052657f56be78a9c405885cd5ee51654296003137fdaa70ce81aeae8aec9aa7560b8806411d4d
ripemd-160
dcbfef74bb910361d073382585430bd885505970
Diameter
775780
Circumference
2437184.7488019
Area
472679796106.38
Volume
2.4446368814894E+17
Surface area
1890719184425.5
Circumference
2437184.7488019
Perimeter
1551560
Area
150458652100
Diagonal
548559.2987089
Surface area
902751912600
Volume
58361406563069000
Space diagonal
671845.18774789
Perimeter
1163670
Area
65150507468.882
Altitude
335922.59387395
Surface area
65150507468.882
Volume
6.8779577233885E+15
Height
182853.09956963