Properties of the Number 18550

Eighteen Thousand Five Hundred Fifty

Basics

Value: 18549 → 18550 → 18551

Parity: even

Prime: No

Previous Prime: 18541

Next Prime: 18553

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 ² × 7 × 53

Divisors: 1, 2, 5, 7, 10, 14, 25, 35, 50, 53

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100100001110110

Octal: 44166

Duodecimal: A89A

Hexadecimal: 4876

Square: 344102500

Square Root: 136.19838471876236

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Integers that are Rhonda numbers to base 8. A100970

Numbers which can be expressed as the product of a number and its reversal in at least two different ways. A66531

Lesser of amicable pair m < n defined by t(n) = m and t(m) = n where t(n) = ψ(n) - n and ψ(n) = A001615(n) is the Dedekind ψ function. A323329

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing. A204800

Sum of the first k-1 numbers in the k-th column of the natural number array A000027, by antidiagonals. A185788

Triangle T(n,k) defined by ∑_k=1..n T(n,k)*u^k*xⁿ/n! = exp(∑_n>0 u*σ(n)*xⁿ/n!). A338871

a(n) is the position of cube of the n-th prime among the powers of primes (A000961). A24625

Positions of cubes among the powers of primes (A000961). A24627

a=b=c=0;c(n)=c+n+a;b(n)=b+n+c;a(n)=a+n+b. A152896

Number of (n+1) X 3 0..1 arrays with rows and columns of determinants of all 2 X 2 subblocks lexicographically nondecreasing. A204794