30721685 is an odd 8-digits composite number following 30721684
and preceding 30721686 . In scientific notation, it is written as 3.0721685 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 24219648 positive integers (up to 30721685) that are relatively prime to 30721685.
30721685 has 12 divisors, whose sum is 37410372
The reverse of 30721685 is 58612703
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
thirty million seven hundred twenty-one thousand six hundred eighty-five
Scientific notation
3.0721685 × 10^7
Engineering notation
3.0721685 × 10^6
Prime Factorization
5 × 1153 × 73 × 73
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
420845
Product of the distinct prime numbers
The prime factorization of 30721685 is 5 × 1153 × 73 × 73.
Since it has a total of 4 prime factors.
3 , 1 , 99 , 25 , 941 , 142 , 5924 , 8310 , 43766 , 33139 , 56432 , 534419 , 8741444 , 9646119 , 86099767 , 90125260 , 86921124 , 685209273 , 2724805002 , 9555416623
n×2
61443370
n×3
92165055
n×4
122886740
n×5
153608425
n÷2
15360842.5
n÷3
10240561.666667
n÷3
7680421.25
n÷5
6144337
n2
943821929239225
n3
2.899580000618E+22
n4
8.9079983411285E+29
n5
2.7366871901667E+37
2 √n
5542.7145876366
3 √n
313.19513736241
4 √n
74.449409585548
5 √n
31.440468316089
1 , 5 , 73 , 365 , 1153 , 5329 , 5765 , 26645 , 84169 , 420845 , 6144337 , 30721685
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
-30721684
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 30721685 can be divided by 12 positive divisors.
The sum of these divisors (counting 30721685) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110101001100011010010101
3
Ternary
2010210211020012
4
Quaternary
1311030122111
5
Quinary
30331043220
6
Senary
3014250005
8
Octal
165143225
10
Decimal
30721685
12
Duodecimal
a356905
16
Hexadecimal
1d4c695
20
Vigesimal
9c0445
36
Base36
iah05
md5
fb6649849452d0e907877faad8459c68
sha1
32f2fc9514d0338f420ca87feb0273289f2cdfca
sha256
a4b183dbab84c47f349213d693d0138b0553f121d6a37e3fe6b81b2a0e7e41e7
sha512
08ee6009698e4e0976125a4198cf97399ae8a1e21e1961d1c951084570896c69f5e101854e2a4e96a357f7f0a814c9f8f352017f6460d99d54d8705329a37296
ripemd-160
c486ba33737e2ea6236f7a1bd23e73570d6923aa
Diameter
61443370
Circumference
193030039.8038
Area
2.9651040391949E+15
Volume
1.2145732304583E+23
Surface area
1.186041615678E+16
Circumference
193030039.8038
Perimeter
122886740
Area
943821929239225
Diagonal
43447023.585954
Surface area
5662931575435350
Volume
2.899580000618E+22
Space diagonal
53211519.314127
Perimeter
92165055
Area
4.08686883685E+14
Altitude
26605759.657063
Surface area
4.08686883685E+14
Volume
3.4171878017164E+21
Height
14482341.195318