20112981 (number)

20112981 is an odd 8-digits composite number following 20112980 and preceding 20112982. In scientific notation, it is written as 2.0112981 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 11299680 positive integers (up to 20112981) that are relatively prime to 20112981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0112981 × 10^7
Engineering notation 2.0112981 × 10^6

Prime Factorization of 20112981

Prime Factorization 21 × 7 × 61 × 2243

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20112981
Product of the distinct prime numbers

The prime factorization of 20112981 is 21 × 7 × 61 × 2243. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 8, 65, 6, 406, 749, 9920, 384, 93649, 8047, 54660, 346828, 1838092, 4172926, 91753465, 55035853, 573644057, 53182553, 4525556508, 9838380605

Basic calculations (n = 20112981)

Multiplication

n×y
n×2 40225962
n×3 60338943
n×4 80451924
n×5 100564905

Division

n÷y
n÷2 10056490.5
n÷3 6704327
n÷3 5028245.25
n÷5 4022596.2

Exponentiation

ny
n2 404532004706361
n3 8.1363445245509E+21
n4 1.6364614283175E+29
n5 3.2914117614982E+36

Nth Root

y√n
2√n 4484.7498257985
3√n 271.95193156485
4√n 66.968274770958
5√n 28.886524239886

Divisors of 20112981

1, 7, 21, 61, 147, 427, 1281, 2243, 8967, 15701, 47103, 136823, 329721, 957761, 2873283, 20112981

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 -20112980
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 20112981 can be divided by 16 positive divisors. The sum of these divisors (counting 20112981) is 1, the average is 0.0625.

Base conversion 20112981

Base System Value
2 Binary 1001100101110011001010101
3 Ternary 1101211211211020
4 Quaternary 1030232121111
5 Quinary 20122103411
6 Senary 1555031353
8 Octal 114563125
10 Decimal 20112981
12 Duodecimal 689b559
16 Hexadecimal 132e655
20 Vigesimal 65e291
36 Base36 bz39x

Cryptographic Hash Functions

md5 f2a72b2a9a27728b84721da11d821cba
sha1 5f5de85029ba1fc36d5637a540afc72de240db27
sha256 6fbb4e1f5bcebcb88f2807ce2cb5cac16a818bee05e6969a5fa5e9bfbd0ffae8
sha512 d80d77cdf4a5ab5fca1c1a77345b43735fa5ab3ff452007e9e7fd2a8da343cf401a91e187c6b497b45088c50e93ff5c3a5ec0b4f3fec8ca0fba3d61e75b820fd
ripemd-160 8e24bc580388682ec4ef5c2d3cf70debf9ccfc1a

20112981 as geometric shapes

Circle

Radius = n
Diameter 40225962
Circumference 126373586.70278
Area 1.2708747741275E+15

Sphere

Radius = n
Volume 3.4081440247206E+22
Surface area 5.0834990965098E+15
Circumference 126373586.70278

Square

Length = n
Perimeter 80451924
Area 404532004706361
Diagonal 28444050.509952

Cube

Length = n
Surface area 2427192028238166
Volume 8.1363445245509E+21
Space diagonal 34836704.983667

Equilateral Triangle

Length = n
Perimeter 60338943
Area 1.7516749635978E+14
Altitude 17418352.491834

Triangular Pyramid

Length = n
Surface area 1.7516749635978E+14
Volume 9.5887739789667E+20
Height 9481350.1699841