21494747 (number)

21494747 is an odd 8-digits composite number following 21494746 and preceding 21494748. In scientific notation, it is written as 2.1494747 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 21184128 positive integers (up to 21494747) that are relatively prime to 21494747.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-four thousand seven hundred forty-seven

Notation

Scientific notation 2.1494747 × 10^7
Engineering notation 2.1494747 × 10^6

Prime Factorization of 21494747

Prime Factorization 113 × 223 × 853

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21494747
Product of the distinct prime numbers

The prime factorization of 21494747 is 113 × 223 × 853. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21494747)

Multiplication

n×y
n×2 42989494
n×3 64484241
n×4 85978988
n×5 107473735

Division

n÷y
n÷2 10747373.5
n÷3 7164915.6666667
n÷3 5373686.75
n÷5 4298949.4

Exponentiation

ny
n2 462024148594009
n3 9.9310921819186E+21
n4 2.1346631388402E+29
n5 4.5884044099596E+36

Nth Root

y√n
2√n 4636.2427675867
3√n 278.04224035963
4√n 68.089960842893
5√n 29.272948422776

Divisors of 21494747

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21494746
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21494747 can be divided by 8 positive divisors. The sum of these divisors (counting 21494747) is 1, the average is 0.125.

Base conversion 21494747

Base System Value
2 Binary 1010001111111101111011011
3 Ternary 1111110001020202
4 Quaternary 1101333233123
5 Quinary 21000312442
6 Senary 2044412415
8 Octal 121775733
10 Decimal 21494747
12 Duodecimal 724710b
16 Hexadecimal 147fbdb
20 Vigesimal 6e6gh7
36 Base36 cspgb

Cryptographic Hash Functions

md5 b876e4fac3e9466ea27ceb8e9a48a5eb
sha1 44f7e29132803137f7ad5732e870926e1111f814
sha256 8f4abcc3f74e9c15882f083195c9346cb3c9d292491a89456b5572dbbcf0c58f
sha512 5efde0c1fb8513f3102c1033f26d01e213fa315f172105458a4d604c9b5f3cd66ae3916613c8276a2097afcb68cbeb6775208b4e2f26f0b51cc906c075c3b6b5
ripemd-160 03249afa7f4024f8e623ce1010064a4c233bc3e6

21494747 as geometric shapes

Circle

Radius = n
Diameter 42989494
Circumference 135055478.53194
Area 1.451491671004E+15

Sphere

Radius = n
Volume 4.1599261654451E+22
Surface area 5.8059666840161E+15
Circumference 135055478.53194

Square

Length = n
Perimeter 85978988
Area 462024148594009
Diagonal 30398162.727178

Cube

Length = n
Surface area 2772144891564054
Volume 9.9310921819186E+21
Space diagonal 37229993.899839

Equilateral Triangle

Length = n
Perimeter 64484241
Area 2.0006232492214E+14
Altitude 18614996.949919

Triangular Pyramid

Length = n
Surface area 2.0006232492214E+14
Volume 1.1703904377372E+21
Height 10132720.909059