30991661 is an odd 8-digits composite number following 30991660
and preceding 30991662 . In scientific notation, it is written as 3.0991661 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 29923920 positive integers (up to 30991661) that are relatively prime to 30991661.
30991661 has 8 divisors, whose sum is 32064000
The reverse of 30991661 is 16619903
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
thirty million nine hundred ninety-one thousand six hundred sixty-one
Scientific notation
3.0991661 × 10^7
Engineering notation
3.0991661 × 10^6
Prime Factorization
599 × 31 × 1669
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
30991661
Product of the distinct prime numbers
The prime factorization of 30991661 is 599 × 31 × 1669.
Since it has a total of 3 prime factors.
8 , 3 , 10 , 13 , 800 , 148 , 4622 , 8998 , 5973 , 89969 , 274061 , 946744 , 6247546 , 8141340 , 35559438 , 63088066 , 538162943 , 327652515 , 9793279981 , 6991272548
n×2
61983322
n×3
92974983
n×4
123966644
n×5
154958305
n÷2
15495830.5
n÷3
10330553.666667
n÷3
7747915.25
n÷5
6198332.2
n2
960483051538921
n3
2.976696512954E+22
n4
9.2252769229352E+29
n5
2.8590665502673E+37
2 √n
5567.0154481553
3 √n
314.10989499987
4 √n
74.612434943214
5 √n
31.495533598435
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
-30991660
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 30991661 can be divided by 8 positive divisors.
The sum of these divisors (counting 30991661) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110001110010100101101
3
Ternary
2011022112120022
4
Quaternary
1312032110231
5
Quinary
30413213121
6
Senary
3024131525
8
Octal
166162455
10
Decimal
30991661
12
Duodecimal
a466ba5
16
Hexadecimal
1d8e52d
20
Vigesimal
9ddj31
36
Base36
ig9bh
md5
37228d824ffeec09986555afb95c9985
sha1
49514b8e67c579f108be9ae027b5318db41c3289
sha256
7bb750f94ec2042f1121c29f8a4e5270e02d580f0584ca072eb6640fdee99679
sha512
c75338d3f1195381f1b232bda619aec6f6aed40f86f310814efc3de57ddf3211eb08c3aaf2afbe2845f844671a03164f3d85a3b5ee6e4ae9833498583759f344
ripemd-160
11818dca3d40c4631a9f6f4193455847f6a7bb5a
Diameter
61983322
Circumference
194726349.04029
Area
3.0174464986122E+15
Volume
1.2468757196083E+23
Surface area
1.2069785994449E+16
Circumference
194726349.04029
Perimeter
123966644
Area
960483051538921
Diagonal
43828827.306669
Surface area
5762898309233526
Volume
2.976696512954E+22
Space diagonal
53679131.462951
Perimeter
92974983
Area
4.1590136126855E+14
Altitude
26839565.731475
Surface area
4.1590136126855E+14
Volume
3.5080704830735E+21
Height
14609609.102223