305401981 is an odd 9-digits composite number following 305401980
and preceding 305401982 . In scientific notation, it is written as 3.05401981 × 10^8.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 292123612 positive integers (up to 305401981) that are relatively prime to 305401981.
305401981 has 4 divisors, whose sum is 318680352
The reverse of 305401981 is 189104503
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
three hundred five million four hundred one thousand nine hundred eighty-one
Scientific notation
3.05401981 × 10^8
Engineering notation
3.05401981 × 10^6
Prime Factorization
23 × 13278347
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
305401981
Product of the distinct prime numbers
The prime factorization of 305401981 is 23 × 13278347.
Since it has a total of 2 prime factors.
3 , 10 , 41 , 49 , 394 , 691 , 8668 , 8850 , 67805 , 6376 , 923178 , 191246 , 1195370 , 2066180 , 4431793 , 25867645 , 508124716 , 563395302 , 252247116 , 6435978815
n×2
610803962
n×3
916205943
n×4
1221607924
n×5
1527009905
n÷2
152700990.5
n÷3
101800660.33333
n÷3
76350495.25
n÷5
61080396.2
n2
93270369998724361
n3
2.8484955766213E+25
n4
8.6993619196989E+33
n5
2.656802363712E+42
2 √n
17475.754089595
3 √n
673.42714241027
4 √n
132.19589286205
5 √n
49.770771171723
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
-305401980
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 305401981 can be divided by 4 positive divisors.
The sum of these divisors (counting 305401981) is 1, the average is 0.25.
Base
System
Value
2
Binary
10010001101000001000001111101
3
Ternary
210021200000202111
4
Quaternary
102031001001331
5
Quinary
1111140330411
6
Senary
50145454021
8
Octal
2215010175
10
Decimal
305401981
12
Duodecimal
86341311
16
Hexadecimal
1234107d
20
Vigesimal
4f8f4j1
36
Base36
51ttod
md5
78d605e2faf34eabf92d4265d71caa20
sha1
e6467eacab1dff7cf1ecdb6fee594963a935d1ef
sha256
e2f3306a1490389babb49375d77937f7dfb280c65e5673737a483e5b5ad30943
sha512
c2851f949715fd9cf54ec63597e616f0fda92881ab3d45618b3e8f11fc538b19253b92413d4fb7c867df40d50104cd5dfc3f9d012c97183145ddc38cc2268f15
ripemd-160
d8352faf9f034f3f2f949206dd9d0a3226ababa6
Diameter
610803962
Circumference
1918897239.8027
Area
2.9301750918559E+17
Volume
1.1931750369729E+26
Surface area
1.1720700367424E+18
Circumference
1918897239.8027
Perimeter
1221607924
Area
93270369998724361
Diagonal
431903623.50581
Surface area
559622219992346166
Volume
2.8484955766213E+25
Space diagonal
528971747.82418
Perimeter
916205943
Area
4.0387254919635E+16
Altitude
264485873.91209
Surface area
4.0387254919635E+16
Volume
3.3569842306814E+24
Height
143967874.50194