Properties of the Number 68992

Sixty-Eight Thousand Nine Hundred Ninety-Two

Basics

Value: 68991 → 68992 → 68993

Parity: even

Prime: No

Previous Prime: 68963

Next Prime: 68993

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 ⁷ × 7 ² × 11

Divisors: 1, 2, 4, 7, 8, 11, 14, 16, 22, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000110110000000

Octal: 206600

Duodecimal: 33B14

Hexadecimal: 10d80

Square: 4759896064

Square Root: 262.66328255011206

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

Number of polygons formed when every pair of vertices of a regular n-gon are joined by an infinite line. A344857

Number of polygons formed when every pair of vertices of a regular (2n-1)-gon are joined by an infinite line. A344866

T(n,k) = Number of ways to reciprocally link elements of an n X k array either to themselves or to exactly two king-move neighbors. A220595

Number of labeled 2,3 cacti (triangular cacti with bridges). A91485

Logarithm of triangular matrix A102220, which equals [2·I - A008459]^-1. A102222

G.f.: A(q) = exp( ∑_n>=1 A002129(n) * 2·A006519(n) * qⁿ/n ). A161800

Numbers with prime factorization pq^2r^7. A190466

G.f. is Q₁(q) where q·Q₁(q⁴) is a series quadrisection of the g.f. of A161800. A161802

Square root of weight enumerator of binary (16,256,6) nonlinear Nordstrom-Robinson code. A109737

Number of ways to reciprocally link elements of an n X 2 array either to themselves or to exactly two king-move neighbors. A220590