21493397 (number)

21493397 is an odd 8-digits composite number following 21493396 and preceding 21493398. In scientific notation, it is written as 2.1493397 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 21424416 positive integers (up to 21493397) that are relatively prime to 21493397.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1493397 × 10^7
Engineering notation 2.1493397 × 10^6

Prime Factorization of 21493397

Prime Factorization 313 × 68669

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21493397
Product of the distinct prime numbers

The prime factorization of 21493397 is 313 × 68669. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 1, 2, 95, 739, 702, 1381, 8241, 90656, 22729, 700987, 136726, 1242589, 8310784, 5792162, 56979948, 505795562, 387971767, 1654876094, 418453239

Basic calculations (n = 21493397)

Multiplication

n×y
n×2 42986794
n×3 64480191
n×4 85973588
n×5 107466985

Division

n÷y
n÷2 10746698.5
n÷3 7164465.6666667
n÷3 5373349.25
n÷5 4298679.4

Exponentiation

ny
n2 461966114599609
n3 9.9292211016369E+21
n4 2.1341269103826E+29
n5 4.5869636933236E+36

Nth Root

y√n
2√n 4636.0971732698
3√n 278.03641932682
4√n 68.088891702463
5√n 29.272580709928

Divisors of 21493397

1, 313, 68669, 21493397

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 -21493396
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 21493397 can be divided by 4 positive divisors. The sum of these divisors (counting 21493397) is 1, the average is 0.25.

Base conversion 21493397

Base System Value
2 Binary 1010001111111011010010101
3 Ternary 1111102222101202
4 Quaternary 1101333122111
5 Quinary 21000242042
6 Senary 2044402245
8 Octal 121773225
10 Decimal 21493397
12 Duodecimal 7246385
16 Hexadecimal 147f695
20 Vigesimal 6e6d9h
36 Base36 csoet

Cryptographic Hash Functions

md5 78250c809b8d35c73665acaa3b6421aa
sha1 2ec03bba9ad6d84fee7f6eaf6476f8ff5856d2d1
sha256 7040ad0f69213e7a95e119ccb0bbdcb8e27a0b75e133ddb3065fbe2ff20a67e9
sha512 b1e2442271e3439b9eb58d86704a72dbde89144a7ea5e1b28be1bbdf816c0110c3e9f07f7c25c7932f0277ef11bf20624a311751dcddd5e459d9f5d58139fa4a
ripemd-160 188e84037f11feb7c147cd55f44482231c081932

21493397 as geometric shapes

Circle

Radius = n
Diameter 42986794
Circumference 135046996.23178
Area 1.4513093518336E+15

Sphere

Radius = n
Volume 4.1591424091695E+22
Surface area 5.8052374073342E+15
Circumference 135046996.23178

Square

Length = n
Perimeter 85973588
Area 461966114599609
Diagonal 30396253.538869

Cube

Length = n
Surface area 2771796687597654
Volume 9.9292211016369E+21
Space diagonal 37227655.631248

Equilateral Triangle

Length = n
Perimeter 64480191
Area 2.0003719546543E+14
Altitude 18613827.815624

Triangular Pyramid

Length = n
Surface area 2.0003719546543E+14
Volume 1.1701699288113E+21
Height 10132084.512956