387989449 is an odd 9-digits composite number following 387989448
and preceding 387989450 . In scientific notation, it is written as 3.87989449 × 10^8.
The sum of its digits is 61. It has a total of 3 prime factors and 8 positive divisors.
There are 383440176 positive integers (up to 387989449) that are relatively prime to 387989449.
387989449 has 8 divisors, whose sum is 392564480
The reverse of 387989449 is 944989783
Previous prime number is 223
Is Prime? no Number parity odd Number length 9 Sum of Digits 61 Digital Root 7
Name
three hundred eighty-seven million nine hundred eighty-nine thousand four hundred forty-nine
Scientific notation
3.87989449 × 10^8
Engineering notation
3.87989449 × 10^6
Prime Factorization
139 × 223 × 12517
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
387989449 Product of the distinct prime numbers
The prime factorization of 387989449 is 139 × 223 × 12517.
Since it has a total of 3 prime factors.
9 , 2 , 46 , 7 , 722 , 598 , 6501 , 2533 , 50620 , 26655 , 157291 , 202615 , 1975367 , 7402025 , 18786296 , 5608073 , 937680769 , 746561714 , 8037296189 , 8964272127
n×2
775978898
n×3
1163968347
n×4
1551957796
n×5
1939947245
n÷2
193994724.5
n÷3
129329816.33333
n÷3
96997362.25
n÷5
77597889.8
n2
150535812535323601
n3
5.8406306960347E+25
n4
2.266103085567E+34
n5
8.7922408754634E+42
2 √n19697.447778837
3 √n729.35669165215
4 √n140.34759627025
5 √n52.211237045049
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
-387989448 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 387989449 can be divided by 8 positive divisors.
The sum of these divisors (counting 387989449) is 1, the average is 0.125.
Base
System
Value
2
Binary
10111001000000011111111001001
3
Ternary
1000001001220110121
4
Quaternary
113020003333021
5
Quinary
1243311130244
6
Senary
102255543241
8
Octal
2710037711
10
Decimal
387989449
12
Duodecimal
a9b2ab21
16
Hexadecimal
17203fc9
20
Vigesimal
614idc9
36
Base36
6ezykp
md5
46b6672f49c4d4737604e59cb53cfe82
sha1
211378c1a662d238461427a1cce6c3b39905d2df
sha256
71221431dee8bdc72a5e35d73396fe011416d77a11578a517ee31ee3c35e9a42
sha512
c8e158d356b0a74d6598d302f2f965b139cf7ac7ce08c54e7a9003d7d1149386900f025a4c122721ec03c0744135ce88b0782f3567553ce9bf01dc1a9a944c7a
ripemd-160
9e9a3ca08fd2db7563410e8ab1aaf5ada231b6d0
Diameter
775978898
Circumference
2437809605.2975
Area
4.7292220276314E+17
Volume
2.4465176649325E+26
Surface area
1.8916888110526E+18
Circumference
2437809605.2975
Perimeter
1551957796
Area
150535812535323601
Diagonal
548699940.83346
Surface area
903214875211941606
Volume
5.8406306960347E+25
Space diagonal
672017438.46865
Perimeter
1163968347
Area
6.5183918917461E+16
Altitude
336008719.23433
Surface area
6.5183918917461E+16
Volume
6.8832492859541E+24
Height
182899980.27782