278330981 is an odd 9-digits composite number following 278330980
and preceding 278330982 . In scientific notation, it is written as 2.78330981 × 10^8.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 250322688 positive integers (up to 278330981) that are relatively prime to 278330981.
278330981 has 16 divisors, whose sum is 308016000
The reverse of 278330981 is 189033872
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 41
Digital Root 5
Name
two hundred seventy-eight million three hundred thirty thousand nine hundred eighty-one
Scientific notation
2.78330981 × 10^8
Engineering notation
2.78330981 × 10^6
Prime Factorization
19 × 23 × 137 × 4649
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
278330981
Product of the distinct prime numbers
The prime factorization of 278330981 is 19 × 23 × 137 × 4649.
Since it has a total of 4 prime factors.
2 , 9 , 27 , 14 , 956 , 822 , 9140 , 7197 , 43312 , 2767 , 674821 , 206356 , 1037775 , 9509038 , 26803986 , 56727306 , 891489237 , 728949623 , 1554258762 , 2715022746
n×2
556661962
n×3
834992943
n×4
1113323924
n×5
1391654905
n÷2
139165490.5
n÷3
92776993.666667
n÷3
69582745.25
n÷5
55666196.2
n2
77468134984422361
n3
2.1561782006455E+25
n4
6.0013119379647E+33
n5
1.6703510389807E+42
2 √n
16683.254508638
3 √n
652.91079645162
4 √n
129.16367333209
5 √n
48.855370377342
1 , 19 , 23 , 137 , 437 , 2603 , 3151 , 4649 , 59869 , 88331 , 106927 , 636913 , 2031613 , 12101347 , 14648999 , 278330981
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
-278330980
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 278330981 can be divided by 16 positive divisors.
The sum of these divisors (counting 278330981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10000100101101111111001100101
3
Ternary
201101201200022212
4
Quaternary
100211233321211
5
Quinary
1032223042411
6
Senary
43341333205
8
Octal
2045577145
10
Decimal
278330981
12
Duodecimal
79267205
16
Hexadecimal
1096fe65
20
Vigesimal
46jb791
36
Base36
4lplk5
md5
a1abc9cbabc9a6d0a68c03a97bb500c5
sha1
ec6b9ac7eae63b63db9389cee456ce8790603264
sha256
0d1ec4d005b468afb15925d267f9005d7a189705b0d893b6cc6c33f828ea924c
sha512
72a022fb47e61d1640166d9c348c036a6cc8fa753c22e971748d3de72427c99a075eb1aa5678c5a7baa8dda94175e018b92f25899a3c181ffc351ee4fbe701b1
ripemd-160
aceec8647401e0189e8bea94815b038bfb6daf10
Diameter
556661962
Circumference
1748805130.3521
Area
2.4337332375436E+17
Volume
9.0317781266377E+25
Surface area
9.7349329501745E+17
Circumference
1748805130.3521
Perimeter
1113323924
Area
77468134984422361
Diagonal
393619448.15881
Surface area
464808809906534166
Volume
2.1561782006455E+25
Space diagonal
482083400.41249
Perimeter
834992943
Area
3.3544686440156E+16
Altitude
241041700.20624
Surface area
3.3544686440156E+16
Volume
2.5410803785384E+24
Height
131206482.7196