21787142 (number)

21787142 is an even 8-digits composite number following 21787141 and preceding 21787143. In scientific notation, it is written as 2.1787142 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 24 positive divisors. There are 9906624 positive integers (up to 21787142) that are relatively prime to 21787142.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred eighty-seven thousand one hundred forty-two

Notation

Scientific notation 2.1787142 × 10^7
Engineering notation 2.1787142 × 10^6

Prime Factorization of 21787142

Prime Factorization 2 × 13 × 13 × 73 × 883

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1675934
Product of the distinct prime numbers

The prime factorization of 21787142 is 2 × 13 × 13 × 73 × 883. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 9, 37, 1, 516, 647, 8685, 9380, 38790, 80585, 267160, 995132, 6442790, 4690977, 49130694, 97646414, 974562215, 958711931, 8994932729, 3718160460

Basic calculations (n = 21787142)

Multiplication

n×y
n×2 43574284
n×3 65361426
n×4 87148568
n×5 108935710

Division

n÷y
n÷2 10893571
n÷3 7262380.6666667
n÷3 5446785.5
n÷5 4357428.4

Exponentiation

ny
n2 474679556528164
n3 1.0341910902576E+22
n4 2.2532068138577E+29
n5 4.9090936808886E+36

Nth Root

y√n
2√n 4667.6698683604
3√n 279.29731113431
4√n 68.320347396368
5√n 29.352159099839

Divisors of 21787142

1, 2, 13, 26, 73, 146, 169, 338, 883, 949, 1766, 1898, 11479, 12337, 22958, 24674, 64459, 128918, 149227, 298454, 837967, 1675934, 10893571, 21787142

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21787141
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21787142 can be divided by 24 positive divisors. The sum of these divisors (counting 21787142) is 1, the average is 0.041666666666667.

Base conversion 21787142

Base System Value
2 Binary 1010011000111001000000110
3 Ternary 1111222220100012
4 Quaternary 1103013020012
5 Quinary 21034142032
6 Senary 2054550222
8 Octal 123071006
10 Decimal 21787142
12 Duodecimal 7368372
16 Hexadecimal 14c7206
20 Vigesimal 6g37h2
36 Base36 cyz2e

Cryptographic Hash Functions

md5 26f80e1011da73af7c1e156aba7b1332
sha1 ea5210971a174412ec5add87afff06022b84d5d4
sha256 0a67a679e4c1d441a31a5b9a203316a8338af169300344815c2718826a2ca7e0
sha512 fdbebd3b80ece688835fbf2dcc0d730d7a368d77cff22923f33a851c18fd01c8408e9e893735585a851086fdcf576018ad2e3159609abb5bc12a7d617b8eee2d
ripemd-160 92d38c911d3dc995352d8468206dc905ab057e24

21787142 as geometric shapes

Circle

Radius = n
Diameter 43574284
Circumference 136892650.49984
Area 1.4912498075981E+15

Sphere

Radius = n
Volume 4.3320095087484E+22
Surface area 5.9649992303926E+15
Circumference 136892650.49984

Square

Length = n
Perimeter 87148568
Area 474679556528164
Diagonal 30811671.701748

Cube

Length = n
Surface area 2848077339168984
Volume 1.0341910902576E+22
Space diagonal 37736436.895718

Equilateral Triangle

Length = n
Perimeter 65361426
Area 2.0554227730526E+14
Altitude 18868218.447859

Triangular Pyramid

Length = n
Surface area 2.0554227730526E+14
Volume 1.2188058882731E+21
Height 10270557.233916