Properties of the Number 61318

Sixty-One Thousand Three Hundred Eighteen

Basics

Value: 61317 → 61318 → 61319

Parity: even

Prime: No

Previous Prime: 61297

Next Prime: 61331

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 23 × 31 × 43

Divisors: 1, 2, 23, 31, 43, 46, 62, 86, 713, 989

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110111110000110

Octal: 167606

Duodecimal: 2B59A

Hexadecimal: ef86

Square: 3759897124

Square Root: 247.62471605233594

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

Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 3 + 2·x, p(n,x) = u·p(n-1,x) + v·p(n-2,x) for n >= 3, where u = p(2,x), v = 1 - 2·x - x². A367300

a(n) = 5ⁿ - n⁵. A24054

a(n) = nⁿ⁺² - (n+2)ⁿ. A46065

a(n) = 7ⁿ - n⁷. A24082

Nonnegative numbers of the form x^y - y^x, for x,y > 1. A45575

Table T(n,k) = kⁿ - n^k, n, k > 0, read by descending antidiagonals. A220417

Monotonic ordering of nonnegative differences 5ⁱ-7^j, for 40>= i>=0, j>=0. A192195

Number of k-element subsets S of {1,...,n} such that mean(S) is not equal to median(S). A212140

Triangle read by rows: T(n, k) = abs(n^k-kⁿ), 1<=k<=n. A82754

Numbers of the form 5^p - p⁵ for p prime. A97202