Properties of the Number 87251

Eighty-Seven Thousand Two Hundred Fifty-One

Basics

Value: 87250 → 87251 → 87252

Parity: odd

Prime: Yes

Previous Prime: 87223

Next Prime: 87253

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 87251

Divisors: 1, 87251

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010011010011

Octal: 252323

Duodecimal: 425AB

Hexadecimal: 154d3

Square: 7612737001

Square Root: 295.38280247841107

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

Least prime in A001359 (lesser of twin primes) such that the distance (A053319) to the next twin is 6·n. A52350

Corresponds to m = 3 in a family of 4th-order linear recurrence sequences given by a(m,n) = m⁴*a(n-4) + (2·m)²*a(n-3) - 4·a(n-1), a(m,0) = -1, a(m,1) = 4, a(m,2) = -13 + 6*(m-1) + 3*(m-1)², a(m,3) = (-8+m²)². A113249

Distinct largest-peak-values in 3x+1 trajectory arranged by their first appearance as initial value increases. A025586 without repetitions while keeping order. A87251

Pseudoprimes n to base 2 such that n+2 and n+4 are primes. A230489

Table read by antidiagonals: Place k equally spaced points on each side of a regular n-gon and join every pair of these n·k points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of internal vertices in the resulting planar graph. A367303