21279940 (number)

21279940 is an even 8-digits composite number following 21279939 and preceding 21279941. In scientific notation, it is written as 2.1279940 × 10^7. The sum of its digits is 34. It has a total of 6 prime factors and 48 positive divisors. There are 7683200 positive integers (up to 21279940) that are relatively prime to 21279940.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1279940 × 10^7
Engineering notation 2.1279940 × 10^6

Prime Factorization of 21279940

Prime Factorization 2 × 2 × 11 × 5 × 197 × 491

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10639970
Product of the distinct prime numbers

The prime factorization of 21279940 is 2 × 2 × 11 × 5 × 197 × 491. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21279940)

Multiplication

n×y
n×2 42559880
n×3 63839820
n×4 85119760
n×5 106399700

Division

n÷y
n÷2 10639970
n÷3 7093313.3333333
n÷3 5319985
n÷5 4255988

Exponentiation

ny
n2 452835846403600
n3 9.6363196413178E+21
n4 2.0506030378806E+29
n5 4.3636709609918E+36

Nth Root

y√n
2√n 4613.018534539
3√n 277.11293600219
4√n 67.919205932777
5√n 29.214205496333

Divisors of 21279940

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 -21279939
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 21279940 can be divided by 48 positive divisors. The sum of these divisors (counting 21279940) is 1, the average is 0.020833333333333.

Base conversion 21279940

Base System Value
2 Binary 1010001001011010011000100
3 Ternary 1111001010120221
4 Quaternary 1101023103010
5 Quinary 20421424230
6 Senary 2040034124
8 Octal 121132304
10 Decimal 21279940
12 Duodecimal 7162944
16 Hexadecimal 144b4c4
20 Vigesimal 6cjjh0
36 Base36 co3pg

Cryptographic Hash Functions

md5 93c1d5ac2900e7a63656f60e230a1906
sha1 513db5a7edaaeb50fba06422e784cff0373b101b
sha256 633cc0fed934805f3acce30ed8c0dc32d867863637c8c1847a227e47469c16b6
sha512 a0778f270752f510dca9e9ef04247a7b3708dcf1d29541aa838637f53618bef18b72ce685ea0add420cf7af79d99286df10fc0f3c89b159281acc493e5edbbe8
ripemd-160 4083ed046027f3058001bf66d725505b5e3bd979

21279940 as geometric shapes

Circle

Radius = n
Diameter 42559880
Circumference 133705806.34566
Area 1.4226257683437E+15

Sphere

Radius = n
Volume 4.0364521323743E+22
Surface area 5.6905030733747E+15
Circumference 133705806.34566

Square

Length = n
Perimeter 85119760
Area 452835846403600
Diagonal 30094379.754486

Cube

Length = n
Surface area 2717015078421600
Volume 9.6363196413178E+21
Space diagonal 36857937.262017

Equilateral Triangle

Length = n
Perimeter 63839820
Area 1.9608367336487E+14
Altitude 18428968.631009

Triangular Pyramid

Length = n
Surface area 1.9608367336487E+14
Volume 1.1356511606762E+21
Height 10031459.918162