Properties of the Number 81464

Eighty-One Thousand Four Hundred Sixty-Four

Basics

Value: 81463 → 81464 → 81465

Parity: even

Prime: No

Previous Prime: 81463

Next Prime: 81509

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 17 × 599

Divisors: 1, 2, 4, 8, 17, 34, 68, 136, 599, 1198

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011111000111000

Octal: 237070

Duodecimal: 3B188

Hexadecimal: 13e38

Square: 6636383296

Square Root: 285.4189902581817

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

Smallest of first string of exactly 2n-1 consecutive composite integers. A45881

The number of regions inside a diagonal-edged (or diamond-shaped) checkerboard of width and height 2·n-1 formed by the straight line segments mutually connecting any two of the 8·n-4 vertices on the perimeter. A333434

Expansion of ∑_0<i<j<k<l<m q^2*(i+j+k+l+m-5)/( (1-q^2·i-1)*(1-q^2·j-1)*(1-q^2·k-1)*(1-q^2·l-1)*(1-q^2·m-1) )². A365667

a(n) is the smallest positive integer that begins a run of exactly 2·n-1 consecutive integers having at least 4 divisors each. A340735

Numbers k such that the fractional part of (3/2)^k decreases monotonically to zero. A81464

Number of Bottleneck-Monge matrices with 6 rows. A70054