20389905 (number)

20389905 is an odd 8-digits composite number following 20389904 and preceding 20389906. In scientific notation, it is written as 2.0389905 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 10798080 positive integers (up to 20389905) that are relatively prime to 20389905.

Interesting facts

Basic properties

Name

Name twenty million three hundred eighty-nine thousand nine hundred five

Notation

Scientific notation 2.0389905 × 10^7
Engineering notation 2.0389905 × 10^6

Prime Factorization of 20389905

Prime Factorization 5 × 9 × 149 × 3041

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20389905
Product of the distinct prime numbers

The prime factorization of 20389905 is 5 × 9 × 149 × 3041. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 10, 7, 82, 440, 821, 411, 8829, 25910, 72932, 893040, 538903, 8564317, 8635825, 92041454, 74260560, 918432805, 324336726, 8882390425, 6348134115

Basic calculations (n = 20389905)

Multiplication

n×y
n×2 40779810
n×3 61169715
n×4 81559620
n×5 101949525

Division

n÷y
n÷2 10194952.5
n÷3 6796635
n÷3 5097476.25
n÷5 4077981

Exponentiation

ny
n2 415748225909025
n3 8.4770668302036E+21
n4 1.728465873465E+29
n5 3.5243254955694E+36

Nth Root

y√n
2√n 4515.5182426827
3√n 273.1943630591
4√n 67.197605929696
5√n 28.965634112488

Divisors of 20389905

1, 5, 9, 45, 149, 745, 1341, 3041, 6705, 15205, 27369, 136845, 453109, 2265545, 4077981, 20389905

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 -20389904
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 20389905 can be divided by 16 positive divisors. The sum of these divisors (counting 20389905) is 1, the average is 0.0625.

Base conversion 20389905

Base System Value
2 Binary 1001101110010000000010001
3 Ternary 1102100220200200
4 Quaternary 1031302000101
5 Quinary 20204434110
6 Senary 2005005413
8 Octal 115620021
10 Decimal 20389905
12 Duodecimal 69b3869
16 Hexadecimal 1372011
20 Vigesimal 678ef5
36 Base36 c50y9

Cryptographic Hash Functions

md5 b552b923ab49b7866ab2cee318e00066
sha1 d79b9ed9d21bd539589d4b11dd57e09372b1ed2d
sha256 0d36858cd8893439318de994fa5f2e453332eaf7a7b2f412032be06046d9346b
sha512 edbf169a702fde351cf71970ce302d37afc25b71b34c6fea6a31fb993e6b66002b4ee36e9107b5b3be46c818f957f92aae8c0fa1aab8234a06816f965fb12bed
ripemd-160 a2693791c0415f12d5219e05c2dd283ec9d786e3

20389905 as geometric shapes

Circle

Radius = n
Diameter 40779810
Circumference 128113551.51079
Area 1.3061115722588E+15

Sphere

Radius = n
Volume 3.5508654503676E+22
Surface area 5.2244462890351E+15
Circumference 128113551.51079

Square

Length = n
Perimeter 81559620
Area 415748225909025
Diagonal 28835680.186499

Cube

Length = n
Surface area 2494489355454150
Volume 8.4770668302036E+21
Space diagonal 35316351.421503

Equilateral Triangle

Length = n
Perimeter 61169715
Area 1.8002426260776E+14
Altitude 17658175.710751

Triangular Pyramid

Length = n
Surface area 1.8002426260776E+14
Volume 9.9903190670141E+20
Height 9611893.3954997