21081492 (number)

21081492 is an even 8-digits composite number following 21081491 and preceding 21081493. In scientific notation, it is written as 2.1081492 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 48 positive divisors. There are 6604416 positive integers (up to 21081492) that are relatively prime to 21081492.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-one thousand four hundred ninety-two

Notation

Scientific notation 2.1081492 × 10^7
Engineering notation 2.1081492 × 10^6

Prime Factorization of 21081492

Prime Factorization 2 × 2 × 27 × 29 × 53 × 127

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10540746
Product of the distinct prime numbers

The prime factorization of 21081492 is 2 × 2 × 27 × 29 × 53 × 127. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 4, 91, 98, 864, 100, 8120, 7131, 5773, 71, 663890, 251660, 8108082, 7889051, 65547754, 78385073, 740615879, 530373629, 5909474036, 8943075955

Basic calculations (n = 21081492)

Multiplication

n×y
n×2 42162984
n×3 63244476
n×4 84325968
n×5 105407460

Division

n÷y
n÷2 10540746
n÷3 7027164
n÷3 5270373
n÷5 4216298.4

Exponentiation

ny
n2 444429304946064
n3 9.369232836786E+21
n4 1.9751740709484E+29
n5 4.1639616375306E+36

Nth Root

y√n
2√n 4591.4585917767
3√n 276.24883041758
4√n 67.760302477016
5√n 29.15951315698

Divisors of 21081492

1, 2, 4, 27, 29, 53, 54, 58, 106, 108, 116, 127, 212, 254, 508, 783, 1431, 1537, 1566, 2862, 3074, 3132, 3429, 3683, 5724, 6148, 6731, 6858, 7366, 13462, 13716, 14732, 26924, 41499, 82998, 99441, 165996, 181737, 195199, 198882, 363474, 390398, 397764, 726948, 780796, 5270373, 10540746, 21081492

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21081491
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21081492 can be divided by 48 positive divisors. The sum of these divisors (counting 21081492) is 1, the average is 0.020833333333333.

Base conversion 21081492

Base System Value
2 Binary 1010000011010110110010100
3 Ternary 1110200001101000
4 Quaternary 1100122312110
5 Quinary 20344101432
6 Senary 2031503300
8 Octal 120326624
10 Decimal 21081492
12 Duodecimal 7087b30
16 Hexadecimal 141ad94
20 Vigesimal 6bf3ec
36 Base36 cjul0

Cryptographic Hash Functions

md5 9b138d065550410568c02f2b5443c776
sha1 587fe2254ae841f00c1bd04528c7bbe8c5ed73e5
sha256 5765aacb6ad6489e5acb0290ba18a9b6034fb6ec6696f31e0b6ef647d5f02a19
sha512 1ee8b66dbeeb2ce29b56b941e48ceb09c2ecd8f488ef450844cdafb4c59ffa1857809a302a9977c83de4d91eedf50b5cabb67a010de3bd2af676b27adbbf91d5
ripemd-160 77e234f8061fc083aaaa8caac6920893434f0a58

21081492 as geometric shapes

Circle

Radius = n
Diameter 42162984
Circumference 132458920.78782
Area 1.3962158394586E+15

Sphere

Radius = n
Volume 3.9245750733092E+22
Surface area 5.5848633578343E+15
Circumference 132458920.78782

Square

Length = n
Perimeter 84325968
Area 444429304946064
Diagonal 29813731.90146

Cube

Length = n
Surface area 2666575829676384
Volume 9.369232836786E+21
Space diagonal 36514215.243357

Equilateral Triangle

Length = n
Perimeter 63244476
Area 1.9244353413478E+14
Altitude 18257107.621678

Triangular Pyramid

Length = n
Surface area 1.9244353413478E+14
Volume 1.1041746789012E+21
Height 9937910.63382