30856821 is an odd 8-digits composite number following 30856820
and preceding 30856822 . In scientific notation, it is written as 3.0856821 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 20571212 positive integers (up to 30856821) that are relatively prime to 30856821.
30856821 has 4 divisors, whose sum is 41142432
The reverse of 30856821 is 12865803
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
thirty million eight hundred fifty-six thousand eight hundred twenty-one
Scientific notation
3.0856821 × 10^7
Engineering notation
3.0856821 × 10^6
Prime Factorization
3 × 10285607
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30856821
Product of the distinct prime numbers
The prime factorization of 30856821 is 3 × 10285607.
Since it has a total of 2 prime factors.
8 , 5 , 27 , 26 , 654 , 578 , 1433 , 2969 , 85132 , 74863 , 699202 , 955033 , 467413 , 6635619 , 99238923 , 67682556 , 154599059 , 728066284 , 7250818632 , 8974914023
n×2
61713642
n×3
92570463
n×4
123427284
n×5
154284105
n÷2
15428410.5
n÷3
10285607
n÷3
7714205.25
n÷5
6171364.2
n2
952143402226041
n3
2.938011852882E+22
n4
9.0657705840258E+29
n5
2.7974086013835E+37
2 √n
5554.8916281058
3 √n
313.65368460985
4 √n
74.531145356192
5 √n
31.46807932242
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-30856820
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 30856821 can be divided by 4 positive divisors.
The sum of these divisors (counting 30856821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110101101101011001110101
3
Ternary
2011001200121020
4
Quaternary
1311231121311
5
Quinary
30344404241
6
Senary
3021211353
8
Octal
165553165
10
Decimal
30856821
12
Duodecimal
a400b59
16
Hexadecimal
1d6d675
20
Vigesimal
9ch211
36
Base36
idd9x
md5
03527022ca7f11cd5fdcdd40e6bdd2cc
sha1
d32bfbf4e7b01b74d49e3a174572944d55c21f0f
sha256
ef14ab8ab89e9912ca587b62b75cf35b2d46274cdc1d1296a8b33a165b3ee3b6
sha512
d2f57815c11498b30ffdf66b6de5b329fb6954da57e1d47e51965d6992a1787816a45ad1c1d2633bc275c8e61e49076dae1464498641a2defbc6ef94b3dad99a
ripemd-160
1e31f517196b35840ee6004f6bd4b78bc839313c
Diameter
61713642
Circumference
193879124.33347
Area
2.9912467175973E+15
Volume
1.2306715270898E+23
Surface area
1.1964986870389E+16
Circumference
193879124.33347
Perimeter
123427284
Area
952143402226041
Diagonal
43638134.749919
Surface area
5712860413356246
Volume
2.938011852882E+22
Space diagonal
53445581.732058
Perimeter
92570463
Area
4.1229018718675E+14
Altitude
26722790.866029
Surface area
4.1229018718675E+14
Volume
3.4624801739655E+21
Height
14546044.91664