Properties of the Number 43456

Forty-Three Thousand Four Hundred Fifty-Six

Basics

Value: 43455 → 43456 → 43457

Parity: even

Prime: No

Previous Prime: 43451

Next Prime: 43457

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁶ × 7 × 97

Divisors: 1, 2, 4, 7, 8, 14, 16, 28, 32, 56

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010100111000000

Octal: 124700

Duodecimal: 21194

Hexadecimal: a9c0

Square: 1888423936

Square Root: 208.46102753272612

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

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise. A238255

Number of quadrilaterals in the graph formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) rectangular grid of points (or equally, a 2 X n grid of squares). A332607

a(n) = 4·a(n-1) - a(n-2) with a(0) = 0, a(1) = 4. A231896

a(n) = 8*((9·n + 8)*10ⁿ - 8)/81. A294329

G.f.: (1-x)/(1-8·x-8·x²+8·x³). A159617

Number of (n+1)X(4+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise. A238251

Numbers k that can be written as the sum of a perfect square and a factorial in at least 2 distinct ways. A358071

Number of (n+1)X(3+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise. A238250

Numbers k that divide the k-th Domb number. A372941

a(2)=6; thereafter a(n) = smallest number m such that a(n-1)+m = (a(n-1) followed by the leading digit of m). A224757