21031493 (number)

21031493 is an odd 8-digits composite number following 21031492 and preceding 21031494. In scientific notation, it is written as 2.1031493 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 18026988 positive integers (up to 21031493) that are relatively prime to 21031493.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand four hundred ninety-three

Notation

Scientific notation 2.1031493 × 10^7
Engineering notation 2.1031493 × 10^6

Prime Factorization of 21031493

Prime Factorization 7 × 3004499

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21031493
Product of the distinct prime numbers

The prime factorization of 21031493 is 7 × 3004499. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21031493)

Multiplication

n×y
n×2 42062986
n×3 63094479
n×4 84125972
n×5 105157465

Division

n÷y
n÷2 10515746.5
n÷3 7010497.6666667
n÷3 5257873.25
n÷5 4206298.6

Exponentiation

ny
n2 442323697809049
n3 9.3027277542051E+21
n4 1.9565025364347E+29
n5 4.1148169399509E+36

Nth Root

y√n
2√n 4586.0105756529
3√n 276.03026430715
4√n 67.720089896964
5√n 29.14566848607

Divisors of 21031493

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031492
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031493 can be divided by 4 positive divisors. The sum of these divisors (counting 21031493) is 1, the average is 0.25.

Base conversion 21031493

Base System Value
2 Binary 1010000001110101001000101
3 Ternary 1110120111210012
4 Quaternary 1100032221011
5 Quinary 20341001433
6 Senary 2030440005
8 Octal 120165105
10 Decimal 21031493
12 Duodecimal 7063005
16 Hexadecimal 140ea45
20 Vigesimal 6b8ied
36 Base36 cis05

Cryptographic Hash Functions

md5 aca62c911c8d2ac99c68179592eab448
sha1 376c58ea4db3f9e15bcd1e74f813c419b00528c1
sha256 4115eac1195cb111d0b6de8c79c400355d7977149d8bce4fcdb9259c4b35a14c
sha512 f1e2bfcc42b863c4cd34a3de88a546118922e4a560114b34c545833ab549e1171e6a27a38dbba617971f639501b47cd9699404cc6449424beefcefd37f0d6c89
ripemd-160 7356c1925b32f6ad0b15bd85e242c0e664208903

21031493 as geometric shapes

Circle

Radius = n
Diameter 42062986
Circumference 132144767.80565
Area 1.3896008795456E+15

Sphere

Radius = n
Volume 3.8967174894609E+22
Surface area 5.5584035181823E+15
Circumference 132144767.80565

Square

Length = n
Perimeter 84125972
Area 442323697809049
Diagonal 29743022.637555

Cube

Length = n
Surface area 2653942186854294
Volume 9.3027277542051E+21
Space diagonal 36427614.435029

Equilateral Triangle

Length = n
Perimeter 63094479
Area 1.9153177949925E+14
Altitude 18213807.217515

Triangular Pyramid

Length = n
Surface area 1.9153177949925E+14
Volume 1.0963369797551E+21
Height 9914340.8791849