30721899 is an odd 8-digits composite number following 30721898
and preceding 30721900 . In scientific notation, it is written as 3.0721899 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 18295200 positive integers (up to 30721899) that are relatively prime to 30721899.
30721899 has 16 divisors, whose sum is 45538304
The reverse of 30721899 is 99812703
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
thirty million seven hundred twenty-one thousand eight hundred ninety-nine
Scientific notation
3.0721899 × 10^7
Engineering notation
3.0721899 × 10^6
Prime Factorization
13 × 3 × 31 × 25411
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
30721899
Product of the distinct prime numbers
The prime factorization of 30721899 is 13 × 3 × 31 × 25411.
Since it has a total of 4 prime factors.
1 , 4 , 44 , 35 , 969 , 920 , 8613 , 4045 , 33394 , 54239 , 516073 , 93253 , 2573782 , 7320317 , 6352542 , 71978654 , 158527240 , 214658080 , 2593782386 , 8105443655
n×2
61443798
n×3
92165697
n×4
122887596
n×5
153609495
n÷2
15360949.5
n÷3
10240633
n÷3
7680474.75
n÷5
6144379.8
n2
943835078166201
n3
2.8996405944079E+22
n4
8.90824654777E+29
n5
2.7367825070769E+37
2 √n
5542.7338922232
3 √n
313.19586457517
4 √n
74.449539234459
5 √n
31.440512117342
1 , 3 , 13 , 31 , 39 , 93 , 403 , 1209 , 25411 , 76233 , 330343 , 787741 , 991029 , 2363223 , 10240633 , 30721899
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-30721898
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 30721899 can be divided by 16 positive divisors.
The sum of these divisors (counting 30721899) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110101001100011101101011
3
Ternary
2010210211112010
4
Quaternary
1311030131223
5
Quinary
30331100044
6
Senary
3014251003
8
Octal
165143553
10
Decimal
30721899
12
Duodecimal
a356a63
16
Hexadecimal
1d4c76b
20
Vigesimal
9c04ej
36
Base36
iah63
md5
95b170c4e8f3c6b90245a5f8501d76bb
sha1
8f3c4f4e7f018d614729703b3a18b70d956d8a2a
sha256
1231c9c40bbfe23d43b8bb6d801de1e1eaa5e4b7580d55ff17d6a216e69da313
sha512
9383ef51e53af6791c14f7f25c91ed366761734eff2cb423a0608717732bbdf6c7954991dc76f9a611038892ec0433c9ad7c752936423cbcf07769bcd5716857
ripemd-160
7bc3417f69a24f2533a47ea331e0326fa5c48517
Diameter
61443798
Circumference
193031384.40546
Area
2.9651453477673E+15
Volume
1.2145986119257E+23
Surface area
1.1860581391069E+16
Circumference
193031384.40546
Perimeter
122887596
Area
943835078166201
Diagonal
43447326.227656
Surface area
5663010468997206
Volume
2.8996405944079E+22
Space diagonal
53211889.972999
Perimeter
92165697
Area
4.086925773374E+14
Altitude
26605944.9865
Surface area
4.086925773374E+14
Volume
3.4172592121827E+21
Height
14482442.075885