308981 is an odd 6-digits composite number following 308980
and preceding 308982 . In scientific notation, it is written as 3.08981 × 10^5.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 307500 positive integers (up to 308981) that are relatively prime to 308981.
308981 has 4 divisors, whose sum is 310464
The reverse of 308981 is 189803
Previous prime number is 251
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 29
Digital Root 2
Name
three hundred eight thousand nine hundred eighty-one
Scientific notation
3.08981 × 10^5
Engineering notation
3.08981 × 10^3
Prime Factorization
251 × 1231
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
308981
Product of the distinct prime numbers
The prime factorization of 308981 is 251 × 1231.
Since it has a total of 2 prime factors.
7 , 8 , 23 , 53 , 211 , 510 , 2817 , 6181 , 55743 , 61284 , 49698 , 532180 , 2346794 , 5086446 , 22195572 , 86000707 , 916137933 , 253869774 , 7736121183 , 6872645645
n×2
617962
n×3
926943
n×4
1235924
n×5
1544905
n÷2
154490.5
n÷3
102993.66666667
n÷3
77245.25
n÷5
61796.2
n2
95469258361
n3
29498186917640141
n4
9.1143792919994E+21
n5
2.8161700280213E+27
2 √n
555.86059403415
3 √n
67.604757318408
4 √n
23.576695994862
5 √n
12.53101803062
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-308980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 308981 can be divided by 4 positive divisors.
The sum of these divisors (counting 308981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001011011011110101
3
Ternary
120200211202
4
Quaternary
1023123311
5
Quinary
34341411
6
Senary
10342245
8
Octal
1133365
10
Decimal
308981
12
Duodecimal
12a985
16
Hexadecimal
4b6f5
20
Vigesimal
1ic91
36
Base36
6met
md5
4104148ba5c4f53ccddaf14327ed3dfe
sha1
2fde65199d8babaf7f8be993a1bdb3aa62f60231
sha256
2353624fb400e251bc5936af3631c300c16327188944036674f4928e474857a7
sha512
88cf705a5873da2ab55d69986932298dd0265615cc6ce7696f32044a86d03e1691a6c3ceef67d396cbe8862fa4f59e865fb24d3ae77899ed529e1cb871cbf03f
ripemd-160
bad23985fe50f292652a6bd6fc15c49ca2ad71ee
Diameter
617962
Circumference
1941384.8793977
Area
299925520710.58
Volume
1.2356171641957E+17
Surface area
1199702082842.3
Circumference
1941384.8793977
Perimeter
1235924
Area
95469258361
Diagonal
436965.1207156
Surface area
572815550166
Volume
29498186917640141
Space diagonal
535170.79057344
Perimeter
926943
Area
41339401510.543
Altitude
267585.39528672
Surface area
41339401510.543
Volume
3.4763946670286E+15
Height
145655.04023853