30278987 is an odd 8-digits composite number following 30278986
and preceding 30278988 . In scientific notation, it is written as 3.0278987 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 28443744 positive integers (up to 30278987) that are relatively prime to 30278987.
30278987 has 8 divisors, whose sum is 32170800
The reverse of 30278987 is 78987203
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
thirty million two hundred seventy-eight thousand nine hundred eighty-seven
Scientific notation
3.0278987 × 10^7
Engineering notation
3.0278987 × 10^6
Prime Factorization
37 × 29 × 28219
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
30278987
Product of the distinct prime numbers
The prime factorization of 30278987 is 37 × 29 × 28219.
Since it has a total of 3 prime factors.
8 , 1 , 28 , 20 , 246 , 975 , 6409 , 9232 , 24541 , 1553 , 13315 , 71032 , 8168589 , 2288339 , 70103688 , 178411 , 465316680 , 13447457 , 3096967514 , 7584934215
n×2
60557974
n×3
90836961
n×4
121115948
n×5
151394935
n÷2
15139493.5
n÷3
10092995.666667
n÷3
7569746.75
n÷5
6055797.4
n2
916817053746169
n3
2.7760291651759E+22
n4
8.4055351003981E+29
n5
2.54511088033E+37
2 √n
5502.6345508311
3 √n
311.68347734859
4 √n
74.179744882489
5 √n
31.349330347037
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
-30278986
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 30278987 can be divided by 8 positive divisors.
The sum of these divisors (counting 30278987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110011100000010101001011
3
Ternary
2002222022221222
4
Quaternary
1303200111023
5
Quinary
30222411422
6
Senary
3000552255
8
Octal
163402513
10
Decimal
30278987
12
Duodecimal
a18268b
16
Hexadecimal
1ce054b
20
Vigesimal
994h97
36
Base36
i0zez
md5
b7080a1c63cd9977c02558dcc7ff8721
sha1
c2aadab239e56eeec57026def61b9518612996b0
sha256
2a2563bbd2ce1c1f39702bdc619f39b1c906bfa73540da7b57cbaf98eb80961b
sha512
82a9987c26782fb3c097680672260dda3341828b40b64fd71eb5b323dd65fb5afd7e60cd1c00a81e1448601ec8925fdef4fa8f34e82b45199c0bee50d5b2b9bf
ripemd-160
eb55ab290277939e56e358295b8ac56b17b834cf
Diameter
60557974
Circumference
190248486.23468
Area
2.8802657207348E+15
Volume
1.162820377529E+23
Surface area
1.1521062882939E+16
Circumference
190248486.23468
Perimeter
121115948
Area
916817053746169
Diagonal
42820954.070319
Surface area
5500902322477014
Volume
2.7760291651759E+22
Space diagonal
52444743.885718
Perimeter
90836961
Area
3.9699342958349E+14
Altitude
26222371.942859
Surface area
3.9699342958349E+14
Volume
3.2715817457791E+21
Height
14273651.356773