30809991 is an odd 8-digits composite number following 30809990
and preceding 30809992 . In scientific notation, it is written as 3.0809991 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 20539992 positive integers (up to 30809991) that are relatively prime to 30809991.
30809991 has 4 divisors, whose sum is 41079992
The reverse of 30809991 is 19990803
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
thirty million eight hundred nine thousand nine hundred ninety-one
Scientific notation
3.0809991 × 10^7
Engineering notation
3.0809991 × 10^6
Prime Factorization
3 × 10269997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30809991
Product of the distinct prime numbers
The prime factorization of 30809991 is 3 × 10269997.
Since it has a total of 2 prime factors.
7 , 7 , 71 , 22 , 156 , 49 , 574 , 9834 , 16258 , 52221 , 936385 , 659086 , 8560632 , 1182846 , 21933133 , 27194935 , 757376733 , 187754792 , 7917225859 , 5651250362
n×2
61619982
n×3
92429973
n×4
123239964
n×5
154049955
n÷2
15404995.5
n÷3
10269997
n÷3
7702497.75
n÷5
6161998.2
n2
949255545420081
n3
2.9246554811093E+22
n4
9.0108609051078E+29
n5
2.7762454338862E+37
2 √n
5550.674823839
3 √n
313.49493160715
4 √n
74.502851112149
5 √n
31.458521982946
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
-30809990
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 30809991 can be divided by 4 positive divisors.
The sum of these divisors (counting 30809991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110101100001111110000111
3
Ternary
2010222022100210
4
Quaternary
1311201332013
5
Quinary
30341404431
6
Senary
3020210503
8
Octal
165417607
10
Decimal
30809991
12
Duodecimal
a399a33
16
Hexadecimal
1d61f87
20
Vigesimal
9cb4jb
36
Base36
icd53
md5
30866dfee80d5432b0769a57d1ae6810
sha1
ec4816cb37efbd50584277e071b4ec4f983c6502
sha256
15502a903d94ff6d47d55b9f7954c836abdb85c87c4fdeb8f7dfd0f4550328b7
sha512
c02afeb99c3120d0d37fa2d8380728d4022340a3b6b778e40b9b34cec18a5e9c9a1ce404afa754cd860a162ee868cc87d5303bd43fc20a76b9e0ad59afbc0e62
ripemd-160
fd5c4b01af5e4f4d282f87ee604d6f9735ab577e
Diameter
61619982
Circumference
193584882.76554
Area
2.9821742478711E+15
Volume
1.2250768231645E+23
Surface area
1.1928696991484E+16
Circumference
193584882.76554
Perimeter
123239964
Area
949255545420081
Diagonal
43571907.128793
Surface area
5695533272520486
Volume
2.9246554811093E+22
Space diagonal
53364469.79274
Perimeter
92429973
Area
4.1103970850852E+14
Altitude
26682234.89637
Surface area
4.1103970850852E+14
Volume
3.446739538878E+21
Height
14523969.042931