20991008 (number)

20991008 is an even 8-digits composite number following 20991007 and preceding 20991009. In scientific notation, it is written as 2.0991008 × 10^7. The sum of its digits is 29. It has a total of 7 prime factors and 24 positive divisors. There are 10346560 positive integers (up to 20991008) that are relatively prime to 20991008.

Interesting facts

Basic properties

Name

Name twenty million nine hundred ninety-one thousand eight

Notation

Scientific notation 2.0991008 × 10^7
Engineering notation 2.0991008 × 10^6

Prime Factorization of 20991008

Prime Factorization 2 × 2 × 2 × 2 × 2 × 71 × 9239

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 1311938
Product of the distinct prime numbers

The prime factorization of 20991008 is 2 × 2 × 2 × 2 × 2 × 71 × 9239. Since it has a total of 7 prime factors.

Most popular turbo-numbers

4, 5, 49, 98, 628, 416, 5012, 1408, 88117, 86741, 334379, 850649, 8551609, 8509273, 86643923, 76851399, 734092575, 19222489, 2984348018, 2160222650

Basic calculations (n = 20991008)

Multiplication

n×y
n×2 41982016
n×3 62973024
n×4 83964032
n×5 104955040

Division

n÷y
n÷2 10495504
n÷3 6997002.6666667
n÷3 5247752
n÷5 4198201.6

Exponentiation

ny
n2 440622416856064
n3 9.249108677205E+21
n4 1.9414811423608E+29
n5 4.0753646191144E+36

Nth Root

y√n
2√n 4581.5944822736
3√n 275.85303384776
4√n 67.687476554187
5√n 29.134438926699

Divisors of 20991008

1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 2272, 9239, 18478, 36956, 73912, 147824, 295648, 655969, 1311938, 2623876, 5247752, 10495504, 20991008

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20991007
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20991008 can be divided by 24 positive divisors. The sum of these divisors (counting 20991008) is 1, the average is 0.041666666666667.

Base conversion 20991008

Base System Value
2 Binary 1010000000100110000100000
3 Ternary 1110111110020202
4 Quaternary 1100010300200
5 Quinary 20333203013
6 Senary 2025524332
8 Octal 120046040
10 Decimal 20991008
12 Duodecimal 70436a8
16 Hexadecimal 1404c20
20 Vigesimal 6b3ha8
36 Base36 chwrk

Cryptographic Hash Functions

md5 012f2f0e99ffc0a4c1c267fc627473bb
sha1 25dfa108f8a0e92c71c9cccbc7af81f72595b57d
sha256 7d8e769b324d1e9ed85bc9de1ad07cac350986dbe6927f43fca42db50a4654f5
sha512 e655a345ea948c85b6664172e002fc2f8690f1565e84aa8e2776d851db9e33a4e843b270f8fc7e6c9733c0587b4c68c505c5e341b18ee10e64ab524a25ee968b
ripemd-160 d64a590fc92c88e00d5532f58f58edb2f32f0913

20991008 as geometric shapes

Circle

Radius = n
Diameter 41982016
Circumference 131890393.04849
Area 1.384256147802E+15

Sphere

Radius = n
Volume 3.8742575830081E+22
Surface area 5.537024591208E+15
Circumference 131890393.04849

Square

Length = n
Perimeter 83964032
Area 440622416856064
Diagonal 29685768.201482

Cube

Length = n
Surface area 2643734501136384
Volume 9.249108677205E+21
Space diagonal 36357492.358085

Equilateral Triangle

Length = n
Perimeter 62973024
Area 1.9079510323712E+14
Altitude 18178746.179042

Triangular Pyramid

Length = n
Surface area 1.9079510323712E+14
Volume 1.0900179109305E+21
Height 9895256.0671607