Properties of the Number 86214

Eighty-Six Thousand Two Hundred Fourteen

Basics

Value: 86213 → 86214 → 86215

Parity: even

Prime: No

Previous Prime: 86209

Next Prime: 86239

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 14369

Divisors: 1, 2, 3, 6, 14369, 28738, 43107, 86214

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101000011000110

Octal: 250306

Duodecimal: 41A86

Hexadecimal: 150c6

Square: 7432853796

Square Root: 293.62220624469126

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

Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k doubledescents (0 <= k <= n-2). We say that i is a doubledescent (also called a double fall) of a permutation p if p(i) > p(i+1) > p(i+2). A162975

a(n) = a(n-1) + 7·a(n-2) for n >= 2, a(0)=1, a(1)=2. A133469

Number of permutations of [n] with exactly two (possibly overlapping) occurrences of the consecutive step pattern {up}². A230621

Base-2 logarithm of (n-th even superperfect number divided by 2ⁿ). A134712

Primes of the form 3^p-2 where p is prime. A86214

Array read by antidiagonals: Numerical sequences of Fibonacci-like polynomials produced by m-ary Huffman trees of maximum height for absolutely ordered sequences. A98805