30921839 is an odd 8-digits composite number following 30921838
and preceding 30921840 . In scientific notation, it is written as 3.0921839 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 28405440 positive integers (up to 30921839) that are relatively prime to 30921839.
30921839 has 8 divisors, whose sum is 33461232
The reverse of 30921839 is 93812903
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
thirty million nine hundred twenty-one thousand eight hundred thirty-nine
Scientific notation
3.0921839 × 10^7
Engineering notation
3.0921839 × 10^6
Prime Factorization
13 × 211 × 11273
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
30921839
Product of the distinct prime numbers
The prime factorization of 30921839 is 13 × 211 × 11273.
Since it has a total of 3 prime factors.
8 , 6 , 21 , 16 , 179 , 330 , 392 , 7013 , 17281 , 9014 , 199686 , 408811 , 6124600 , 8415912 , 71415273 , 68163888 , 218451507 , 978909204 , 1028017246 , 8766381775
n×2
61843678
n×3
92765517
n×4
123687356
n×5
154609195
n÷2
15460919.5
n÷3
10307279.666667
n÷3
7730459.75
n÷5
6184367.8
n2
956160127141921
n3
2.9566229509702E+22
n4
9.1424218873605E+29
n5
2.8270049767104E+37
2 √n
5560.740867906
3 √n
313.87382857349
4 √n
74.570375269982
5 √n
31.481329354402
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
-30921838
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 30921839 can be divided by 8 positive divisors.
The sum of these divisors (counting 30921839) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110101111101010001101111
3
Ternary
2011011222210022
4
Quaternary
1311331101233
5
Quinary
30403444324
6
Senary
3022432355
8
Octal
165752157
10
Decimal
30921839
12
Duodecimal
a4326bb
16
Hexadecimal
1d7d46f
20
Vigesimal
9d54bj
36
Base36
ierfz
md5
a3c28a3b879e9b4a166d5554133ee3e2
sha1
85de34c4fdf3d78fd436b429caf331cdf77e3c0f
sha256
faeb0af461de85a970e1d0909bf6d4680e8ecab419a29b6db64e03d61d1c34c7
sha512
23c750810760d64e222dd0d2836d6d9cee289c94c668e567891f07a7f287e20765637486fddf9bfd9d5300dd50defb2aa12e53c173398ba9540b5142ab0da3c8
ripemd-160
a2fe944132880e87598f13f74c121b2941b78310
Diameter
61843678
Circumference
194287644.47577
Area
3.0038656310845E+15
Volume
1.2384673256271E+23
Surface area
1.2015462524338E+16
Circumference
194287644.47577
Perimeter
123687356
Area
956160127141921
Diagonal
43730084.087317
Surface area
5736960762851526
Volume
2.9566229509702E+22
Space diagonal
53558196.211465
Perimeter
92765517
Area
4.1402948009533E+14
Altitude
26779098.105732
Surface area
4.1402948009533E+14
Volume
3.4844135634047E+21
Height
14576694.695772