Properties of the Number -5420

Four Hundred Twenty

Basics

Value: -5421 → -5420 → -5419

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 × 271

Divisors: 1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1010100101100

Octal: -12454

Duodecimal: -3178

Hexadecimal: -152c

Square: 29376400

Square Root: 73.62064927722385

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

Maximum number of regions into which the plane is divided by n triangles. A77588

Numbers k such that binomial(3k, k) + 1 is prime. A125221

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001011. A260284

Sum of the squarefree parts of the partitions of n into 5 parts. A309480

a(n) = a(n-1) + a(n-1-(number of odd terms so far)). A7604

Same rule as Aitken triangle (A011971) except a(0,0)=0, a(1,0)=1. A46936

Numbers with digits in strictly decreasing order, sorted lexicographically. A262557

Irregular table read by rows: T(n,k) is the number of k-gons, k>=2, among all distinct circles that can be constructed from a 2·n square grid of points using only a compass. A359862

Maximum number of unit squares aligned with unit-spaced horizontal lines that can be enclosed by a circle of radius n. A124484

Numbers k such that A120292(k) is composite. A141779