20121688 (number)

20121688 is an even 8-digits composite number following 20121687 and preceding 20121689. In scientific notation, it is written as 2.0121688 × 10^7. The sum of its digits is 28. It has a total of 5 prime factors and 16 positive divisors. There are 9623328 positive integers (up to 20121688) that are relatively prime to 20121688.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-one thousand six hundred eighty-eight

Notation

Scientific notation 2.0121688 × 10^7
Engineering notation 2.0121688 × 10^6

Prime Factorization of 20121688

Prime Factorization 2 × 2 × 2 × 23 × 109357

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5030422
Product of the distinct prime numbers

The prime factorization of 20121688 is 2 × 2 × 2 × 23 × 109357. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 8, 26, 69, 72, 882, 3236, 2031, 2096, 16914, 726774, 97811, 7786103, 9218620, 65302429, 55018705, 206966511, 106062427, 5525061914, 7968128868

Basic calculations (n = 20121688)

Multiplication

n×y
n×2 40243376
n×3 60365064
n×4 80486752
n×5 100608440

Division

n÷y
n÷2 10060844
n÷3 6707229.3333333
n÷3 5030422
n÷5 4024337.6

Exponentiation

ny
n2 404882327969344
n3 8.1469158801128E+21
n4 1.6392969950188E+29
n5 3.2985422673105E+36

Nth Root

y√n
2√n 4485.7204549548
3√n 271.99116897511
4√n 66.975521311557
5√n 28.889024828189

Divisors of 20121688

1, 2, 4, 8, 23, 46, 92, 184, 109357, 218714, 437428, 874856, 2515211, 5030422, 10060844, 20121688

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 -20121687
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 20121688 can be divided by 16 positive divisors. The sum of these divisors (counting 20121688) is 1, the average is 0.0625.

Base conversion 20121688

Base System Value
2 Binary 1001100110000100001011000
3 Ternary 1101212021202201
4 Quaternary 1030300201120
5 Quinary 20122343223
6 Senary 1555135544
8 Octal 114604130
10 Decimal 20121688
12 Duodecimal 68a45b4
16 Hexadecimal 1330858
20 Vigesimal 65f448
36 Base36 bz9zs

Cryptographic Hash Functions

md5 202d8809fad816869948e60585835911
sha1 1bd7e7e0cb9e1225eefb3d4ba7641983631a60cf
sha256 f6d724d23ce43bf23255af25591977f6ab4dc5a30ae9db28b8ba049287fb2ac4
sha512 207bc907f8b0932d8a2d9eee12838dcb288f8d546cc9bc3f3b78aaabee363a1d24617cf3cf9c18e6a746007f65ceeb9b2a92460527fd7c704e9c682d144b6a93
ripemd-160 6fe5d30cf48e5e8fe95e9ace19906c99f9f06af5

20121688 as geometric shapes

Circle

Radius = n
Diameter 40243376
Circumference 126428294.39725
Area 1.2719753471168E+15

Sphere

Radius = n
Volume 3.4125721437835E+22
Surface area 5.0879013884673E+15
Circumference 126428294.39725

Square

Length = n
Perimeter 80486752
Area 404882327969344
Diagonal 28456364.06744

Cube

Length = n
Surface area 2429293967816064
Volume 8.1469158801128E+21
Space diagonal 34851785.950049

Equilateral Triangle

Length = n
Perimeter 60365064
Area 1.7531919078242E+14
Altitude 17425892.975024

Triangular Pyramid

Length = n
Surface area 1.7531919078242E+14
Volume 9.6012324409736E+20
Height 9485454.6891467