20449987 (number)

20449987 is an odd 8-digits composite number following 20449986 and preceding 20449988. In scientific notation, it is written as 2.0449987 × 10^7. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 19718400 positive integers (up to 20449987) that are relatively prime to 20449987.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0449987 × 10^7
Engineering notation 2.0449987 × 10^6

Prime Factorization of 20449987

Prime Factorization 31 × 2081 × 317

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20449987
Product of the distinct prime numbers

The prime factorization of 20449987 is 31 × 2081 × 317. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 7, 92, 76, 473, 249, 3296, 8748, 17211, 23111, 328242, 718407, 5221958, 6678538, 33524867, 75764568, 578811644, 179999769, 9129127052, 3864847335

Basic calculations (n = 20449987)

Multiplication

n×y
n×2 40899974
n×3 61349961
n×4 81799948
n×5 102249935

Division

n÷y
n÷2 10224993.5
n÷3 6816662.3333333
n÷3 5112496.75
n÷5 4089997.4

Exponentiation

ny
n2 418201968300169
n3 8.5522248151129E+21
n4 1.7489288629014E+29
n5 3.5765572510258E+36

Nth Root

y√n
2√n 4522.166184474
3√n 273.46243636747
4√n 67.247053351608
5√n 28.982684369537

Divisors of 20449987

1, 31, 317, 2081, 9827, 64511, 659677, 20449987

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 -20449986
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 20449987 can be divided by 8 positive divisors. The sum of these divisors (counting 20449987) is 1, the average is 0.125.

Base conversion 20449987

Base System Value
2 Binary 1001110000000101011000011
3 Ternary 1102110222002221
4 Quaternary 1032000223003
5 Quinary 20213344422
6 Senary 2010151511
8 Octal 116005303
10 Decimal 20449987
12 Duodecimal 6a22597
16 Hexadecimal 1380ac3
20 Vigesimal 67g4j7
36 Base36 c6bb7

Cryptographic Hash Functions

md5 e21cd0c23d5011f938a5144298167944
sha1 06b4d951dd58f563aabe548af186fe7b20250f4e
sha256 c650652907ac3034734c3ecd5603cc7b9979da07ddf7e5b852375f19f1d503ff
sha512 143de4ca6c73891f4a28e3e3608799cdb4574c7b8f4305b1426502840c7f77d4a82c7f4c4f426fdf1b354c3fde7df3c850d420ca7ba1c5b7a745702750f5e5ba
ripemd-160 de36c4bf70a67019eb0eae0303a773d19e7552cc

20449987 as geometric shapes

Circle

Radius = n
Diameter 40899974
Circumference 128491057.85041
Area 1.3138202313286E+15

Sphere

Radius = n
Volume 3.5823475534676E+22
Surface area 5.2552809253144E+15
Circumference 128491057.85041

Square

Length = n
Perimeter 81799948
Area 418201968300169
Diagonal 28920648.965753

Cube

Length = n
Surface area 2509211809801014
Volume 8.5522248151129E+21
Space diagonal 35420416.498123

Equilateral Triangle

Length = n
Perimeter 61349961
Area 1.810867642303E+14
Altitude 17710208.249062

Triangular Pyramid

Length = n
Surface area 1.810867642303E+14
Volume 1.0078893601664E+21
Height 9640216.3219178