20001645 (number)

20001645 is an odd 8-digits composite number following 20001644 and preceding 20001646. In scientific notation, it is written as 2.0001645 × 10^7. The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors. There are 10091520 positive integers (up to 20001645) that are relatively prime to 20001645.

Interesting facts

Basic properties

Name

Name twenty million one thousand six hundred forty-five

Notation

Scientific notation 2.0001645 × 10^7
Engineering notation 2.0001645 × 10^6

Prime Factorization of 20001645

Prime Factorization 45 × 41 × 37 × 293

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20001645
Product of the distinct prime numbers

The prime factorization of 20001645 is 45 × 41 × 37 × 293. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 3, 87, 61, 360, 675, 3802, 2123, 68776, 94631, 243780, 490085, 9513100, 9977130, 80625056, 66238500, 108862712, 67808337, 9063780588, 697566191

Basic calculations (n = 20001645)

Multiplication

n×y
n×2 40003290
n×3 60004935
n×4 80006580
n×5 100008225

Division

n÷y
n÷2 10000822.5
n÷3 6667215
n÷3 5000411.25
n÷5 4000329

Exponentiation

ny
n2 400065802706025
n3 8.001974162366E+21
n4 1.6005264649482E+29
n5 3.2013162164998E+36

Nth Root

y√n
2√n 4472.3198678091
3√n 271.44920348376
4√n 66.875405552483
5√n 28.854472750798

Divisors of 20001645

1, 37, 41, 45, 293, 1517, 1665, 1845, 10841, 12013, 13185, 68265, 444481, 487845, 540585, 20001645

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 -20001644
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 20001645 can be divided by 16 positive divisors. The sum of these divisors (counting 20001645) is 1, the average is 0.0625.

Base conversion 20001645

Base System Value
2 Binary 1001100010011001101101101
3 Ternary 1101122012002200
4 Quaternary 1030103031231
5 Quinary 20110023040
6 Senary 1552412113
8 Octal 114231555
10 Decimal 20001645
12 Duodecimal 6847039
16 Hexadecimal 131336d
20 Vigesimal 650425
36 Base36 bwpd9

Cryptographic Hash Functions

md5 8504d8da46f4a31b881fdb9f86715c72
sha1 7c2805a08ee52f04be9a2cabced10ac84a800004
sha256 da38cf238965e472bd76d07e6da919ee295230d9c242c95353e5741a13fe86ab
sha512 e884b11f5092041c0030310e9b28c5384df0e1d7f3326050553be18927ae44785374defecabc9a97efbf077b639af1e9b10e9c006cab37ebf76400fa756f1ca2
ripemd-160 653728833c9cffd6275c2daa843aaf8c7ff008fe

20001645 as geometric shapes

Circle

Radius = n
Diameter 40003290
Circumference 125674041.98342
Area 1.2568437867338E+15

Sphere

Radius = n
Volume 3.3518590990272E+22
Surface area 5.027375146935E+15
Circumference 125674041.98342

Square

Length = n
Perimeter 80006580
Area 400065802706025
Diagonal 28286597.628772

Cube

Length = n
Surface area 2400394816236150
Volume 8.001974162366E+21
Space diagonal 34643865.374956

Equilateral Triangle

Length = n
Perimeter 60004935
Area 1.7323357416442E+14
Altitude 17321932.687478

Triangular Pyramid

Length = n
Surface area 1.7323357416442E+14
Volume 9.4304169884808E+20
Height 9428865.8762573