30721889 is an odd 8-digits composite number following 30721888
and preceding 30721890 . In scientific notation, it is written as 3.0721889 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 27836640 positive integers (up to 30721889) that are relatively prime to 30721889.
30721889 has 8 divisors, whose sum is 33625632
The reverse of 30721889 is 98812703
Previous prime number is 313
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
thirty million seven hundred twenty-one thousand eight hundred eighty-nine
Scientific notation
3.0721889 × 10^7
Engineering notation
3.0721889 × 10^6
Prime Factorization
11 × 313 × 8923
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
30721889
Product of the distinct prime numbers
The prime factorization of 30721889 is 11 × 313 × 8923.
Since it has a total of 3 prime factors.
3 , 5 , 18 , 31 , 855 , 646 , 6700 , 7364 , 87035 , 9099 , 777976 , 381720 , 5609801 , 8552346 , 40613050 , 27721298 , 837673617 , 509390448 , 5534294047 , 8947933116
n×2
61443778
n×3
92165667
n×4
122887556
n×5
153609445
n÷2
15360944.5
n÷3
10240629.666667
n÷3
7680472.25
n÷5
6144377.8
n2
943834463728321
n3
2.8996377629036E+22
n4
8.9082349492133E+29
n5
2.7367780529565E+37
2 √n
5542.7329901412
3 √n
313.19583059334
4 √n
74.449533176114
5 √n
31.44051007056
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
-30721888
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 30721889 can be divided by 8 positive divisors.
The sum of these divisors (counting 30721889) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110101001100011101100001
3
Ternary
2010210211111202
4
Quaternary
1311030131201
5
Quinary
30331100024
6
Senary
3014250545
8
Octal
165143541
10
Decimal
30721889
12
Duodecimal
a356a55
16
Hexadecimal
1d4c761
20
Vigesimal
9c04e9
36
Base36
iah5t
md5
a60623c1bb958408a5bce8b9cf07c1ca
sha1
734d28aa5dc2a63afd1a011307b09095b6474b76
sha256
7e48320c285636cf6d1a1be63119a461788d8ba8d2a1b684b974963ee977e68d
sha512
3f4a71ba9613775864fc1bf97ee337c30d6b48f7778c7c5ef343e1c4b8465daec7c285834b0fbd009e232cadfb67043780e2c949cf1d9342c1e2cfaf066273e4
ripemd-160
7578d4d1ef4253a0822c61006562a1e84f8464aa
Diameter
61443778
Circumference
193031321.5736
Area
2.9651434174538E+15
Volume
1.2145974258679E+23
Surface area
1.1860573669815E+16
Circumference
193031321.5736
Perimeter
122887556
Area
943834463728321
Diagonal
43447312.085521
Surface area
5663006782369926
Volume
2.8996377629036E+22
Space diagonal
53211872.652491
Perimeter
92165667
Area
4.0869231127799E+14
Altitude
26605936.326246
Surface area
4.0869231127799E+14
Volume
3.4172558752229E+21
Height
14482437.36184