20984985 (number)

20984985 is an odd 8-digits composite number following 20984984 and preceding 20984986. In scientific notation, it is written as 2.0984985 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 9253440 positive integers (up to 20984985) that are relatively prime to 20984985.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0984985 × 10^7
Engineering notation 2.0984985 × 10^6

Prime Factorization of 20984985

Prime Factorization 9 × 155 × 49 × 307

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20984985
Product of the distinct prime numbers

The prime factorization of 20984985 is 9 × 155 × 49 × 307. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 4, 61, 41, 235, 173, 321, 4122, 35551, 68360, 280979, 753139, 5760849, 284881, 15140160, 53267373, 819801026, 938235542, 8879956406, 5024352183

Basic calculations (n = 20984985)

Multiplication

n×y
n×2 41969970
n×3 62954955
n×4 83939940
n×5 104924925

Division

n÷y
n÷2 10492492.5
n÷3 6994995
n÷3 5246246.25
n÷5 4196997

Exponentiation

ny
n2 440369595450225
n3 9.241149354979E+21
n4 1.9392538059699E+29
n5 4.0695212029472E+36

Nth Root

y√n
2√n 4580.9371311992
3√n 275.82664760089
4√n 67.682620599377
5√n 29.132766811962

Divisors of 20984985

1, 9, 49, 155, 307, 441, 1395, 2763, 7595, 15043, 47585, 68355, 135387, 428265, 2331665, 20984985

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 -20984984
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 20984985 can be divided by 16 positive divisors. The sum of these divisors (counting 20984985) is 1, the average is 0.0625.

Base conversion 20984985

Base System Value
2 Binary 1010000000011010010011001
3 Ternary 1110111010222200
4 Quaternary 1100003102121
5 Quinary 20333004420
6 Senary 2025440413
8 Octal 120032231
10 Decimal 20984985
12 Duodecimal 7040109
16 Hexadecimal 1403499
20 Vigesimal 6b3295
36 Base36 chs49

Cryptographic Hash Functions

md5 6063b52f1a2bcfbb4f4eafbe2841c432
sha1 3d4b1d93b4d5da65ef86f5e6ed9b57c2a74084ea
sha256 d019887d2f19d47845b0345454e3e1733e5614b90d2071db55a5a9d93d1ac6bc
sha512 2eb99c001e741922ec1497bf67580cb65b6033a7a894da35d09472596812ec2c4d8a630a683e1f6dd55fce9f68cb078b4ff62589e4d04fd46d9c3c0ef3230276
ripemd-160 905e6673bd3fd99152457b0670b1d36156745be9

20984985 as geometric shapes

Circle

Radius = n
Diameter 41969970
Circumference 131852549.42338
Area 1.3834618859307E+15

Sphere

Radius = n
Volume 3.8709235899104E+22
Surface area 5.5338475437229E+15
Circumference 131852549.42338

Square

Length = n
Perimeter 83939940
Area 440369595450225
Diagonal 29677250.393196

Cube

Length = n
Surface area 2642217572701350
Volume 9.241149354979E+21
Space diagonal 36347060.216071

Equilateral Triangle

Length = n
Perimeter 62954955
Area 1.9068562835709E+14
Altitude 18173530.108035

Triangular Pyramid

Length = n
Surface area 1.9068562835709E+14
Volume 1.0890798958106E+21
Height 9892416.797732