30909945 is an odd 8-digits composite number following 30909944
and preceding 30909946 . In scientific notation, it is written as 3.0909945 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 14500800 positive integers (up to 30909945) that are relatively prime to 30909945.
30909945 has 8 divisors, whose sum is 33798048
The reverse of 30909945 is 54990903
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
thirty million nine hundred nine thousand nine hundred forty-five
Scientific notation
3.0909945 × 10^7
Engineering notation
3.0909945 × 10^6
Prime Factorization
465 × 11 × 6043
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
30909945
Product of the distinct prime numbers
The prime factorization of 30909945 is 465 × 11 × 6043.
Since it has a total of 3 prime factors.
9 , 10 , 29 , 6 , 296 , 316 , 4896 , 797 , 22496 , 95810 , 574619 , 646893 , 6979515 , 7358959 , 86837486 , 41696566 , 240688593 , 651675752 , 3616780064 , 7679001939
n×2
61819890
n×3
92729835
n×4
123639780
n×5
154549725
n÷2
15454972.5
n÷3
10303315
n÷3
7727486.25
n÷5
6181989
n2
955424699903025
n3
2.9532124925644E+22
n4
9.1283635718479E+29
n5
2.8215721594582E+37
2 √n
5559.6713032337
3 √n
313.83357984533
4 √n
74.563203413169
5 √n
31.47890714041
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
-30909944
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 30909945 can be divided by 8 positive divisors.
The sum of these divisors (counting 30909945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110101111010010111111001
3
Ternary
2011011101110210
4
Quaternary
1311322113321
5
Quinary
30403104240
6
Senary
3022301333
8
Octal
165722771
10
Decimal
30909945
12
Duodecimal
a427849
16
Hexadecimal
1d7a5f9
20
Vigesimal
9d3eh5
36
Base36
iei9l
md5
ef43c2c84846642a732b510b29b3018c
sha1
259e9620eca637c0b0467ba2c2aa46234daff8f8
sha256
7b539c2cff10546e836ff8480ea9f58cddfa3448827070bbe8cf499ce440bef0
sha512
da9a76d75710904bdb2392770de2bc407826d5f3aa39854271733065a6b92b582b56a44ce00051dba63832cc86610dae79083635dc43e6ee28b64b07f2f48235
ripemd-160
d526aa40c79c49315c3b23ee35fc0ba992c2e93c
Diameter
61819890
Circumference
194212912.26973
Area
3.0015552182736E+15
Volume
1.2370387561507E+23
Surface area
1.2006220873094E+16
Circumference
194212912.26973
Perimeter
123639780
Area
955424699903025
Diagonal
43713263.431206
Surface area
5732548199418150
Volume
2.9532124925644E+22
Space diagonal
53537595.19916
Perimeter
92729835
Area
4.1371103075957E+14
Altitude
26768797.59958
Surface area
4.1371103075957E+14
Volume
3.4803942996285E+21
Height
14571087.810402