387942778 is an even 9-digits composite number following 387942777
and preceding 387942779 . In scientific notation, it is written as 3.87942778 × 10^8.
The sum of its digits is 55. It has a total of 3 prime factors and 8 positive divisors.
There are 193931424 positive integers (up to 387942778) that are relatively prime to 387942778.
387942778 has 8 divisors, whose sum is 582034068
The reverse of 387942778 is 877249783
Previous prime number is 34313
Is Prime? no Number parity even Number length 9 Sum of Digits 55 Digital Root 1
Name
three hundred eighty-seven million nine hundred forty-two thousand seven hundred seventy-eight
Scientific notation
3.87942778 × 10^8
Engineering notation
3.87942778 × 10^6
Prime Factorization
2 × 34313 × 5653
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
387942778 Product of the distinct prime numbers
The prime factorization of 387942778 is 2 × 34313 × 5653.
Since it has a total of 3 prime factors.
8 , 2 , 80 , 66 , 951 , 152 , 4357 , 5610 , 27053 , 93023 , 200304 , 217835 , 7526516 , 8854502 , 37861956 , 49997388 , 778898144 , 891658434 , 593535254 , 5031113779
n×2
775885556
n×3
1163828334
n×4
1551771112
n×5
1939713890
n÷2
193971389
n÷3
129314259.33333
n÷3
96985694.5
n÷5
77588555.6
n2
150499599002357284
n3
5.8385232524861E+25
n4
2.265012929987E+34
n5
8.7869540826509E+42
2 √n19696.263046578
3 √n729.32744586449
4 √n140.34337549944
5 √n52.209980893416
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
-387942777 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 387942778 can be divided by 8 positive divisors.
The sum of these divisors (counting 387942778) is 1, the average is 0.125.
Base
System
Value
2
Binary
10111000111111000100101111010
3
Ternary
1000000222112110001
4
Quaternary
113013320211322
5
Quinary
1243303132103
6
Senary
102254543214
8
Octal
2707704572
10
Decimal
387942778
12
Duodecimal
a9b07b0a
16
Hexadecimal
171f897a
20
Vigesimal
614cgii
36
Base36
6eyyka
md5
ee14e6219114203d183b2ad1401150c8
sha1
d9cab9c542829c12c1b9318d014c806f514aecff
sha256
3002d39849b62d01fed1fd44bc6bbf7349156ec9d84892b4effa0c39a5958303
sha512
5aaf3dac81228ea4f6dd0ea61d611343e70adeb39785eb1db1ea755e6155f6b63399b0b2917c5fb720b45a64c87ae8bf7034deadbb2d08708b3453b750807b06
ripemd-160
ac23df0cdfbfa17df9853ed8252adf40ef93b049
Diameter
775885556
Circumference
2437516362.756
Area
4.7280843459402E+17
Volume
2.4456349010431E+26
Surface area
1.8912337383761E+18
Circumference
2437516362.756
Perimeter
1551771112
Area
150499599002357284
Diagonal
548633938.07229
Surface area
902997594014143704
Volume
5.8385232524861E+25
Space diagonal
671936601.92541
Perimeter
1163828334
Area
6.5168237997706E+16
Altitude
335968300.96271
Surface area
6.5168237997706E+16
Volume
6.8807656399137E+24
Height
182877979.35743