21492915 (number)

21492915 is an odd 8-digits composite number following 21492914 and preceding 21492916. In scientific notation, it is written as 2.1492915 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 11067392 positive integers (up to 21492915) that are relatively prime to 21492915.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-two thousand nine hundred fifteen

Notation

Scientific notation 2.1492915 × 10^7
Engineering notation 2.1492915 × 10^6

Prime Factorization of 21492915

Prime Factorization 15 × 29 × 49409

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21492915
Product of the distinct prime numbers

The prime factorization of 21492915 is 15 × 29 × 49409. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21492915)

Multiplication

n×y
n×2 42985830
n×3 64478745
n×4 85971660
n×5 107464575

Division

n÷y
n÷2 10746457.5
n÷3 7164305
n÷3 5373228.75
n÷5 4298583

Exponentiation

ny
n2 461945395197225
n3 9.9285531136154E+21
n4 2.1339354814392E+29
n5 4.5864493918057E+36

Nth Root

y√n
2√n 4636.0451895986
3√n 278.03434094346
4√n 68.088509967531
5√n 29.272449418346

Divisors of 21492915

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 -21492914
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 21492915 can be divided by 8 positive divisors. The sum of these divisors (counting 21492915) is 1, the average is 0.125.

Base conversion 21492915

Base System Value
2 Binary 1010001111111010010110011
3 Ternary 1111102221201220
4 Quaternary 1101333102303
5 Quinary 21000233130
6 Senary 2044400123
8 Octal 121772263
10 Decimal 21492915
12 Duodecimal 7246043
16 Hexadecimal 147f4b3
20 Vigesimal 6e6c5f
36 Base36 cso1f

Cryptographic Hash Functions

md5 345b1c62f8d7509e5f6f42da12a4f81e
sha1 15914acfdac2037462ab096d1fbfebf154015f48
sha256 e2802e79702185ec2c05903d32967152a6b7324d23e663ebb42ae06123e6f47e
sha512 38ac80de9871fd1d90a8a6aa950de5ef32dd350b389b7c5f6ccfac574797a2449640001f274093d4f3527e87192eb5b7271dade796cd39dfc4958a01bd25b6d1
ripemd-160 fcec45dc2e077ee4521e36ce3690f6398290aa9d

21492915 as geometric shapes

Circle

Radius = n
Diameter 42985830
Circumference 135043967.73646
Area 1.4512442599112E+15

Sphere

Radius = n
Volume 4.1588626030013E+22
Surface area 5.8049770396449E+15
Circumference 135043967.73646

Square

Length = n
Perimeter 85971660
Area 461945395197225
Diagonal 30395571.887932

Cube

Length = n
Surface area 2771672371183350
Volume 9.9285531136154E+21
Space diagonal 37226820.782759

Equilateral Triangle

Length = n
Perimeter 64478745
Area 2.0002822370102E+14
Altitude 18613410.39138

Triangular Pyramid

Length = n
Surface area 2.0002822370102E+14
Volume 1.170091205668E+21
Height 10131857.295977