30721311 is an odd 8-digits composite number following 30721310
and preceding 30721312 . In scientific notation, it is written as 3.0721311 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors.
There are 20366640 positive integers (up to 30721311) that are relatively prime to 30721311.
30721311 has 12 divisors, whose sum is 44622760
The reverse of 30721311 is 11312703
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
thirty million seven hundred twenty-one thousand three hundred eleven
Scientific notation
3.0721311 × 10^7
Engineering notation
3.0721311 × 10^6
Prime Factorization
3 × 3 × 181 × 18859
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10240437
Product of the distinct prime numbers
The prime factorization of 30721311 is 3 × 3 × 181 × 18859.
Since it has a total of 4 prime factors.
2 , 1 , 34 , 82 , 721 , 859 , 2965 , 4657 , 55878 , 74347 , 285722 , 69401 , 5291047 , 6156442 , 45233309 , 25384612 , 259185870 , 752244901 , 6813118404 , 7985355448
n×2
61442622
n×3
92163933
n×4
122885244
n×5
153606555
n÷2
15360655.5
n÷3
10240437
n÷3
7680327.75
n÷5
6144262.2
n2
943798949558721
n3
2.8994741050867E+22
n4
8.9075645718815E+29
n5
2.7365206146535E+37
2 √n
5542.6808495529
3 √n
313.19386643107
4 √n
74.449183001245
5 √n
31.44039176565
1 , 3 , 9 , 181 , 543 , 1629 , 18859 , 56577 , 169731 , 3413479 , 10240437 , 30721311
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-30721310
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 30721311 can be divided by 12 positive divisors.
The sum of these divisors (counting 30721311) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110101001100010100011111
3
Ternary
2010210210201100
4
Quaternary
1311030110133
5
Quinary
30331040221
6
Senary
3014244143
8
Octal
165142437
10
Decimal
30721311
12
Duodecimal
a356653
16
Hexadecimal
1d4c51f
20
Vigesimal
9c035b
36
Base36
iagpr
md5
cacdda969821c5aab217fed3034f8253
sha1
168797593149bc125d10c9e7c9bf5d3df82289aa
sha256
b3e6ab978ca4797144cb4907650f964ebd2478b95899aa8fbeff908de6580e39
sha512
8d820deaf6fa385c7d175981036a0edf650d226c35222ca42882314241e0865524551c2f10111dcdb2022894af1d82e59523ded167e848b40c7441c18eff5594
ripemd-160
07d77b0db4a8c6a3624c17d7bd53fe39ace12ab5
Diameter
61442622
Circumference
193027689.89249
Area
2.9650318463994E+15
Volume
1.2145288730419E+23
Surface area
1.1860127385598E+16
Circumference
193027689.89249
Perimeter
122885244
Area
943798949558721
Diagonal
43446494.670082
Surface area
5662793697352326
Volume
2.8994741050867E+22
Space diagonal
53210871.527125
Perimeter
92163933
Area
4.0867693319146E+14
Altitude
26605435.763562
Surface area
4.0867693319146E+14
Volume
3.417063002636E+21
Height
14482164.890027