20949987 (number)

20949987 is an odd 8-digits composite number following 20949986 and preceding 20949988. In scientific notation, it is written as 2.0949987 × 10^7. The sum of its digits is 48. It has a total of 5 prime factors and 24 positive divisors. There are 13006224 positive integers (up to 20949987) that are relatively prime to 20949987.

Interesting facts

Basic properties

Name

Name twenty million nine hundred forty-nine thousand nine hundred eighty-seven

Notation

Scientific notation 2.0949987 × 10^7
Engineering notation 2.0949987 × 10^6

Prime Factorization of 20949987

Prime Factorization 3 × 23 × 23 × 43 × 307

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 910869
Product of the distinct prime numbers

The prime factorization of 20949987 is 3 × 23 × 23 × 43 × 307. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 10, 29, 10, 726, 820, 2504, 9156, 10986, 51675, 380538, 795830, 3631339, 1384587, 23348394, 28752875, 837442577, 442644634, 3111495080, 50448182

Basic calculations (n = 20949987)

Multiplication

n×y
n×2 41899974
n×3 62849961
n×4 83799948
n×5 104749935

Division

n÷y
n÷2 10474993.5
n÷3 6983329
n÷3 5237496.75
n÷5 4189997.4

Exponentiation

ny
n2 438901955300169
n3 9.1949902578131E+21
n4 1.9263492636631E+29
n5 4.0356992031202E+36

Nth Root

y√n
2√n 4577.1155764302
3√n 275.67322437137
4√n 67.65438327581
5√n 29.123043007752

Divisors of 20949987

1, 3, 23, 43, 69, 129, 307, 529, 921, 989, 1587, 2967, 7061, 13201, 21183, 22747, 39603, 68241, 162403, 303623, 487209, 910869, 6983329, 20949987

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 -20949986
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 20949987 can be divided by 24 positive divisors. The sum of these divisors (counting 20949987) is 1, the average is 0.041666666666667.

Base conversion 20949987

Base System Value
2 Binary 1001111111010101111100011
3 Ternary 1110102100222110
4 Quaternary 1033322233203
5 Quinary 20330344422
6 Senary 2025010403
8 Octal 117725743
10 Decimal 20949987
12 Duodecimal 7023a03
16 Hexadecimal 13fabe3
20 Vigesimal 6aiej7
36 Base36 ch143

Cryptographic Hash Functions

md5 e9fcfebcbc5d27e5c7b15cf835a473b2
sha1 0ae8660d17f2db5d2cb781229b01c5e1c7432f41
sha256 e594b82810770c74a550794e4adbc2eb9ceac22bae960f012c58d4d07043666b
sha512 1e0d8f6dce5dc5b0cd473ac6834e782fd6a3d7c27887dab774e91f2ece2f30551df1b0424197594e388b480ce4a19c84424b7cdb202b771fb83a1b9b437acdcf
ripemd-160 2a6dc01f13f109c471b57a680c1f832b539ab766

20949987 as geometric shapes

Circle

Radius = n
Diameter 41899974
Circumference 131632650.504
Area 1.3788511584172E+15

Sphere

Radius = n
Volume 3.8515885125034E+22
Surface area 5.5154046336688E+15
Circumference 131632650.504

Square

Length = n
Perimeter 83799948
Area 438901955300169
Diagonal 29627755.74694

Cube

Length = n
Surface area 2633411731801014
Volume 9.1949902578131E+21
Space diagonal 36286441.901907

Equilateral Triangle

Length = n
Perimeter 62849961
Area 1.900501215303E+14
Altitude 18143220.950954

Triangular Pyramid

Length = n
Surface area 1.900501215303E+14
Volume 1.0836399940406E+21
Height 9875918.5823133