20805655 (number)

20805655 is an odd 8-digits composite number following 20805654 and preceding 20805656. In scientific notation, it is written as 2.0805655 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 14515200 positive integers (up to 20805655) that are relatively prime to 20805655.

Interesting facts

Basic properties

Name

Name twenty million eight hundred five thousand six hundred fifty-five

Notation

Scientific notation 2.0805655 × 10^7
Engineering notation 2.0805655 × 10^6

Prime Factorization of 20805655

Prime Factorization 65 × 41 × 211 × 37

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20805655
Product of the distinct prime numbers

The prime factorization of 20805655 is 65 × 41 × 211 × 37. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 4, 2, 23, 447, 725, 8898, 9930, 74322, 25474, 867420, 251685, 9761528, 1684877, 67034931, 49905594, 788168562, 335662259, 205987463, 2892074579

Basic calculations (n = 20805655)

Multiplication

n×y
n×2 41611310
n×3 62416965
n×4 83222620
n×5 104028275

Division

n÷y
n÷2 10402827.5
n÷3 6935218.3333333
n÷3 5201413.75
n÷5 4161131

Exponentiation

ny
n2 432875279979025
n3 9.006253733272E+21
n4 1.8738100801692E+29
n5 3.8985846063523E+36

Nth Root

y√n
2√n 4561.3216286511
3√n 275.03869427973
4√n 67.537557171185
5√n 29.082804141584

Divisors of 20805655

1, 37, 41, 65, 211, 1517, 2405, 2665, 7807, 8651, 13715, 98605, 320087, 507455, 562315, 20805655

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 -20805654
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 20805655 can be divided by 16 positive divisors. The sum of these divisors (counting 20805655) is 1, the average is 0.0625.

Base conversion 20805655

Base System Value
2 Binary 1001111010111100000010111
3 Ternary 1110011000222211
4 Quaternary 1033113200113
5 Quinary 20311240110
6 Senary 2021534251
8 Octal 117274027
10 Decimal 20805655
12 Duodecimal 6b74387
16 Hexadecimal 13d7817
20 Vigesimal 6a0e2f
36 Base36 cdxqv

Cryptographic Hash Functions

md5 a1ef832581baa0e11f627b96ea9a6c13
sha1 624f77b38120a09e96dc5d49ad86a596aeb6adcb
sha256 0514df3967801947169dd15611dbeb5fab08f85779b50d75d07b3bfed259d87c
sha512 02625fc42e86004a86f1d2ada7225f0117cd6549dfc1d855ce9ff47506daab8bbfbe04e4d47640b5fe9abcc3fe04775feca1125defb712a71d21ecab6e867f43
ripemd-160 a3c38aea2edd8d10073f4956f61f7e26e423e2f8

20805655 as geometric shapes

Circle

Radius = n
Diameter 41611310
Circumference 130725785.80225
Area 1.3599177995027E+15

Sphere

Radius = n
Volume 3.7725307419751E+22
Surface area 5.4396711980109E+15
Circumference 130725785.80225

Square

Length = n
Perimeter 83222620
Area 432875279979025
Diagonal 29423639.475056

Cube

Length = n
Surface area 2597251679874150
Volume 9.006253733272E+21
Space diagonal 36036451.544749

Equilateral Triangle

Length = n
Perimeter 62416965
Area 1.8744049456607E+14
Altitude 18018225.772375

Triangular Pyramid

Length = n
Surface area 1.8744049456607E+14
Volume 1.0613971813139E+21
Height 9807879.8250185