21131828 (number)

21131828 is an even 8-digits composite number following 21131827 and preceding 21131829. In scientific notation, it is written as 2.1131828 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 12 positive divisors. There are 10531320 positive integers (up to 21131828) that are relatively prime to 21131828.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand eight hundred twenty-eight

Notation

Scientific notation 2.1131828 × 10^7
Engineering notation 2.1131828 × 10^6

Prime Factorization of 21131828

Prime Factorization 2 × 2 × 311 × 16987

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10565914
Product of the distinct prime numbers

The prime factorization of 21131828 is 2 × 2 × 311 × 16987. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 1, 57, 77, 919, 655, 6628, 3425, 58562, 13019, 759043, 723489, 8677186, 1179913, 13620545, 92125586, 970750018, 798114796, 8356940563, 7422396750

Basic calculations (n = 21131828)

Multiplication

n×y
n×2 42263656
n×3 63395484
n×4 84527312
n×5 105659140

Division

n÷y
n÷2 10565914
n÷3 7043942.6666667
n÷3 5282957
n÷5 4226365.6

Exponentiation

ny
n2 446554154621584
n3 9.4365055881487E+21
n4 1.994106130098E+29
n5 4.2139107754976E+36

Nth Root

y√n
2√n 4596.9368061787
3√n 276.46852088744
4√n 67.800713906114
5√n 29.173424633702

Divisors of 21131828

1, 2, 4, 311, 622, 1244, 16987, 33974, 67948, 5282957, 10565914, 21131828

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131827
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131828 can be divided by 12 positive divisors. The sum of these divisors (counting 21131828) is 1, the average is 0.083333333333333.

Base conversion 21131828

Base System Value
2 Binary 1010000100111001000110100
3 Ternary 1110202121102022
4 Quaternary 1100213020310
5 Quinary 20402204303
6 Senary 2032532312
8 Octal 120471064
10 Decimal 21131828
12 Duodecimal 70b1098
16 Hexadecimal 1427234
20 Vigesimal 6c19b8
36 Base36 ckxf8

Cryptographic Hash Functions

md5 9e766c1823f7072523e8e2ac341a58e2
sha1 915d9d030f2289122fd92a9593bcf5b5a14cbfc2
sha256 71e5c6987e9f8bc4d1ad1c1a01df4616a1d9b93fa6051106291d54b45f94675a
sha512 2e406503a86ec581b2c8ae832cac78343114ac23dcc6ffda2b8cc33f61d41f4b76180c91111ffeabc5ebdf2bcd2d276ce414973004c6389447f1229fd175d1da
ripemd-160 a55420ea9bf4dc9b86c9489b5a8c4bef5380a84b

21131828 as geometric shapes

Circle

Radius = n
Diameter 42263656
Circumference 132775191.20345
Area 1.4028912515892E+15

Sphere

Radius = n
Volume 3.9527542175049E+22
Surface area 5.6115650063567E+15
Circumference 132775191.20345

Square

Length = n
Perimeter 84527312
Area 446554154621584
Diagonal 29884917.755336

Cube

Length = n
Surface area 2679324927729504
Volume 9.4365055881487E+21
Space diagonal 36601399.752807

Equilateral Triangle

Length = n
Perimeter 63395484
Area 1.9336362103389E+14
Altitude 18300699.876403

Triangular Pyramid

Length = n
Surface area 1.9336362103389E+14
Volume 1.1121028486808E+21
Height 9961639.2517785