20145909 (number)

20145909 is an odd 8-digits composite number following 20145908 and preceding 20145910. In scientific notation, it is written as 2.0145909 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 10904544 positive integers (up to 20145909) that are relatively prime to 20145909.

Interesting facts

Basic properties

Name

Name twenty million one hundred forty-five thousand nine hundred nine

Notation

Scientific notation 2.0145909 × 10^7
Engineering notation 2.0145909 × 10^6

Prime Factorization of 20145909

Prime Factorization 21 × 7 × 19 × 7213

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20145909
Product of the distinct prime numbers

The prime factorization of 20145909 is 21 × 7 × 19 × 7213. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 10, 56, 40, 333, 755, 6390, 7153, 95485, 99318, 255183, 15407, 491764, 1319500, 76056962, 70473677, 887148666, 740414326, 4347040419, 9310810402

Basic calculations (n = 20145909)

Multiplication

n×y
n×2 40291818
n×3 60437727
n×4 80583636
n×5 100729545

Division

n÷y
n÷2 10072954.5
n÷3 6715303
n÷3 5036477.25
n÷5 4029181.8

Exponentiation

ny
n2 405857649436281
n3 8.1763712724972E+21
n4 1.6472043160594E+29
n5 3.3184428255741E+36

Nth Root

y√n
2√n 4488.4194322723
3√n 272.10025950019
4√n 66.995667264924
5√n 28.895976376235

Divisors of 20145909

1, 7, 19, 21, 133, 147, 399, 2793, 7213, 50491, 137047, 151473, 959329, 1060311, 2877987, 20145909

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 -20145908
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 20145909 can be divided by 16 positive divisors. The sum of these divisors (counting 20145909) is 1, the average is 0.0625.

Base conversion 20145909

Base System Value
2 Binary 1001100110110011011110101
3 Ternary 1101220111222210
4 Quaternary 1030312123311
5 Quinary 20124132114
6 Senary 1555444033
8 Octal 114663365
10 Decimal 20145909
12 Duodecimal 68b6619
16 Hexadecimal 13366f5
20 Vigesimal 65i4f9
36 Base36 bzsol

Cryptographic Hash Functions

md5 0b24e0997f9440a6e32ca7327b615d24
sha1 743d9d45a30739f0b9497074cdd1c0103afda814
sha256 11ff36f0c0edab5b3dc84383cb0f917cfa776cc6a128fec503aa904c05c34b91
sha512 6369d195ec639af6c9f54961671c209ea88dfa3f01574bf7a73c56a40fd9b2238d10642dbc6c3ad9ba8152a105b595458c0c5364d9e83f6f20edbe8dc309342c
ripemd-160 0a5fd0a9019bb546b6f31b8cb355e0be987ecd91

20145909 as geometric shapes

Circle

Radius = n
Diameter 40291818
Circumference 126580479.42858
Area 1.2750394098722E+15

Sphere

Radius = n
Volume 3.4249103896933E+22
Surface area 5.100157639489E+15
Circumference 126580479.42858

Square

Length = n
Perimeter 80583636
Area 405857649436281
Diagonal 28490617.734134

Cube

Length = n
Surface area 2435145896617686
Volume 8.1763712724972E+21
Space diagonal 34893737.952659

Equilateral Triangle

Length = n
Perimeter 60437727
Area 1.7574151736603E+14
Altitude 17446868.97633

Triangular Pyramid

Length = n
Surface area 1.7574151736603E+14
Volume 9.6359459538028E+20
Height 9496872.5780447