21279906 (number)

21279906 is an even 8-digits composite number following 21279905 and preceding 21279907. In scientific notation, it is written as 2.1279906 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 7074816 positive integers (up to 21279906) that are relatively prime to 21279906.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred seventy-nine thousand nine hundred six

Notation

Scientific notation 2.1279906 × 10^7
Engineering notation 2.1279906 × 10^6

Prime Factorization of 21279906

Prime Factorization 2 × 3 × 3 × 449 × 2633

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7093302
Product of the distinct prime numbers

The prime factorization of 21279906 is 2 × 3 × 3 × 449 × 2633. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 10, 40, 99, 769, 467, 6498, 6498, 26803, 16619, 323704, 143117, 7285298, 4276568, 98899719, 25441921, 433737339, 996341406, 1954579835, 2533614168

Basic calculations (n = 21279906)

Multiplication

n×y
n×2 42559812
n×3 63839718
n×4 85119624
n×5 106399530

Division

n÷y
n÷2 10639953
n÷3 7093302
n÷3 5319976.5
n÷5 4255981.2

Exponentiation

ny
n2 452834399368836
n3 9.6362734521353E+21
n4 2.0505899325173E+29
n5 4.3636361008515E+36

Nth Root

y√n
2√n 4613.0148493149
3√n 277.11278841649
4√n 67.919178803302
5√n 29.214196160934

Divisors of 21279906

1, 2, 3, 6, 9, 18, 449, 898, 1347, 2633, 2694, 4041, 5266, 7899, 8082, 15798, 23697, 47394, 1182217, 2364434, 3546651, 7093302, 10639953, 21279906

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21279905
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21279906 can be divided by 24 positive divisors. The sum of these divisors (counting 21279906) is 1, the average is 0.041666666666667.

Base conversion 21279906

Base System Value
2 Binary 1010001001011010010100010
3 Ternary 1111001010112200
4 Quaternary 1101023102202
5 Quinary 20421424111
6 Senary 2040034030
8 Octal 121132242
10 Decimal 21279906
12 Duodecimal 7162916
16 Hexadecimal 144b4a2
20 Vigesimal 6cjjf6
36 Base36 co3oi

Cryptographic Hash Functions

md5 b78c592050f541876ecbaa0cb35f6e48
sha1 5e24c4b75978dde0b0677070397c18c7ff45e43e
sha256 9ddb14dcd2051ed9d664e278c51ac397d89567ae7ff9d273a97d5a83509bf73f
sha512 a4cb7d447782e2ae569d62e506d2fb23f51b3bcf7c3a0aec216deacb3e88e4047411922cba3dc53e9dc1420a56b05f232662b83a2335e4721dbe9edd42adfe67
ripemd-160 68ba53ba35a4e64b5a0cc57c76fbb3b83624144e

21279906 as geometric shapes

Circle

Radius = n
Diameter 42559812
Circumference 133705592.71736
Area 1.4226212223499E+15

Sphere

Radius = n
Volume 4.0364327846947E+22
Surface area 5.6904848893995E+15
Circumference 133705592.71736

Square

Length = n
Perimeter 85119624
Area 452834399368836
Diagonal 30094331.671225

Cube

Length = n
Surface area 2717006396213016
Volume 9.6362734521353E+21
Space diagonal 36857878.37229

Equilateral Triangle

Length = n
Perimeter 63839718
Area 1.9608304678044E+14
Altitude 18428939.186145

Triangular Pyramid

Length = n
Surface area 1.9608304678044E+14
Volume 1.1356457172288E+21
Height 10031443.890408