20280981 (number)

20280981 is an odd 8-digits composite number following 20280980 and preceding 20280982. In scientific notation, it is written as 2.0280981 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 11517744 positive integers (up to 20280981) that are relatively prime to 20280981.

Interesting facts

Basic properties

Name

Name twenty million two hundred eighty thousand nine hundred eighty-one

Notation

Scientific notation 2.0280981 × 10^7
Engineering notation 2.0280981 × 10^6

Prime Factorization of 20280981

Prime Factorization 3 × 7 × 167 × 5783

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20280981
Product of the distinct prime numbers

The prime factorization of 20280981 is 3 × 7 × 167 × 5783. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 4, 59, 62, 17, 946, 9771, 425, 21840, 33606, 322287, 613440, 4056723, 8093853, 99541237, 19643859, 407913115, 631577753, 569144677, 9519923178

Basic calculations (n = 20280981)

Multiplication

n×y
n×2 40561962
n×3 60842943
n×4 81123924
n×5 101404905

Division

n÷y
n÷2 10140490.5
n÷3 6760327
n÷3 5070245.25
n÷5 4056196.2

Exponentiation

ny
n2 411318190322361
n3 8.3419364028822E+21
n4 1.6918265369006E+29
n5 3.4311901850177E+36

Nth Root

y√n
2√n 4503.4410177108
3√n 272.70702109219
4√n 67.107682255542
5√n 28.934620567239

Divisors of 20280981

1, 3, 7, 21, 167, 501, 1169, 3507, 5783, 17349, 40481, 121443, 965761, 2897283, 6760327, 20280981

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 -20280980
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 20280981 can be divided by 16 positive divisors. The sum of these divisors (counting 20280981) is 1, the average is 0.0625.

Base conversion 20280981

Base System Value
2 Binary 1001101010111011010010101
3 Ternary 1102011101021110
4 Quaternary 1031113122111
5 Quinary 20142442411
6 Senary 2002405233
8 Octal 115273225
10 Decimal 20280981
12 Duodecimal 6960819
16 Hexadecimal 1357695
20 Vigesimal 66f291
36 Base36 c2owl

Cryptographic Hash Functions

md5 33f3cf9bdf09a182065f4f632bb28b35
sha1 da456d50384589ade1d9ea74786cda49ee111275
sha256 82991dc43a158797206131e8d91ab01adbce645ee27eeac2a91ddc53b43b46bb
sha512 59d165f7b8f61343735ee0119d8ac4bce384d998a7339d0ef33ade7ebce883948755bf40833e61ea404cfa7798e13bf583c8760c57eb7455d2e02c8d39478710
ripemd-160 7df15d96fd043e36280033d1eef034779755329b

20280981 as geometric shapes

Circle

Radius = n
Diameter 40561962
Circumference 127429161.83439
Area 1.2921942050046E+15

Sphere

Radius = n
Volume 3.4942621493344E+22
Surface area 5.1687768200183E+15
Circumference 127429161.83439

Square

Length = n
Perimeter 81123924
Area 411318190322361
Diagonal 28681638.388431

Cube

Length = n
Surface area 2467909141934166
Volume 8.3419364028822E+21
Space diagonal 35127689.519339

Equilateral Triangle

Length = n
Perimeter 60842943
Area 1.781060009289E+14
Altitude 17563844.75967

Triangular Pyramid

Length = n
Surface area 1.781060009289E+14
Volume 9.8310663311749E+20
Height 9560546.129477