Properties of the Number -1456

Four Hundred Fifty-Six

Basics

Value: -1457 → -1456 → -1455

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ⁴ × 7 × 13

Divisors: 1, 2, 4, 7, 8, 13, 14, 16, 26, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: -10110110000

Octal: -2660

Duodecimal: -A14

Hexadecimal: -5b0

Square: 2119936

Square Root: 38.157568056677825

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

Result of using the perfect squares as coefficients in an infinite polynomial series in·and then expressing this series as (1+a(1)x)(1+a(2)x²)(1+a(3)x³)... A147559

Triangular array, inverse of 2·P - I, where P is Pascal's triangle and I is the identity matrix. A162312

Coefficients in the expansion of 1/([r] + [2r]x + [3r]x² + ...); [ ] = floor, r = 4/3. A279675

a(n) = n³ * ∑_d∣n (-1)^{n/d + 1} * μ(d) / d³. A338548

Series reversion of x + 2·x² + x⁴. A217362

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 20", based on the 5-celled von Neumann neighborhood. A269714

Expansion of log(1+tanh(tan(x))). A9386

Number of regions in regular n-gon with all diagonals drawn. A7678

Numbers having k prime factors (counted with multiplicity), the largest of which is the k-th prime. A106529

Coordination sequence for "ubt" 3D uniform tiling. A299291