278399381 is an odd 9-digits composite number following 278399380
and preceding 278399382 . In scientific notation, it is written as 2.78399381 × 10^8.
The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors.
There are 243458352 positive integers (up to 278399381) that are relatively prime to 278399381.
278399381 has 8 divisors, whose sum is 315594720
The reverse of 278399381 is 183993872
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 50
Digital Root 5
Name
two hundred seventy-eight million three hundred ninety-nine thousand three hundred eighty-one
Scientific notation
2.78399381 × 10^8
Engineering notation
2.78399381 × 10^6
Prime Factorization
13 × 19 × 1127123
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
278399381
Product of the distinct prime numbers
The prime factorization of 278399381 is 13 × 19 × 1127123.
Since it has a total of 3 prime factors.
3 , 2 , 44 , 84 , 698 , 87 , 2773 , 1048 , 1729 , 58726 , 210391 , 954392 , 1177839 , 9122291 , 59240193 , 3720235 , 633776240 , 200836898 , 482567810 , 430659739
n×2
556798762
n×3
835198143
n×4
1113597524
n×5
1391996905
n÷2
139199690.5
n÷3
92799793.666667
n÷3
69599845.25
n÷5
55679876.2
n2
77506215341183161
n3
2.1577682374638E+25
n4
6.0072134165139E+33
n5
1.6724044966924E+42
2 √n
16685.304342445
3 √n
652.96427647324
4 √n
129.17160811279
5 √n
48.857771388454
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
-278399380
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 278399381 can be divided by 8 positive divisors.
The sum of these divisors (counting 278399381) is 1, the average is 0.125.
Base
System
Value
2
Binary
10000100110000000100110010101
3
Ternary
201101212011011012
4
Quaternary
100212000212111
5
Quinary
1032232240011
6
Senary
43343022005
8
Octal
2046004625
10
Decimal
278399381
12
Duodecimal
7929a905
16
Hexadecimal
10980995
20
Vigesimal
46jji91
36
Base36
4lr2c5
md5
792b0f727eb0d23e59320f67f05a0895
sha1
1bfcab7127fa2d12dbf951fa11ae7e35c6c92a1a
sha256
a52ce18d5b81e91aaab02f20731103ddde28f9a1937cc3b9e2c1531f980ef9c9
sha512
7e49b9d64014a20d25fd376db37c88300b733d5ac57f5e828d4518b5c9fe5028357a4338983a08b16a7c3c60545161a25b28274cc367c8c5a2cc1bbf2e499abb
ripemd-160
bacc06dfb213b36618e2afe7330a71b453c11dc3
Diameter
556798762
Circumference
1749234900.2271
Area
2.4349295672341E+17
Volume
9.0384384572876E+25
Surface area
9.7397182689364E+17
Circumference
1749234900.2271
Perimeter
1113597524
Area
77506215341183161
Diagonal
393716180.36647
Surface area
465037292047098966
Volume
2.1577682374638E+25
Space diagonal
482201872.68773
Perimeter
835198143
Area
3.3561175718326E+16
Altitude
241100936.34386
Surface area
3.3561175718326E+16
Volume
2.5429542548993E+24
Height
131238726.78882