Properties of the Number -4521

Five Hundred Twenty-One

Basics

Value: -4522 → -4521 → -4520

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 11 × 137

Divisors: 1, 3, 11, 33, 137, 411, 1507, 4521

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1000110101001

Octal: -10651

Duodecimal: -2749

Hexadecimal: -11a9

Square: 20439441

Square Root: 67.23838189605696

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

Numbers k such that A003961(k) = 2k +- 7, multiplied by the sign of difference A003961(k)-2k, where A003961 is fully multiplicative with a(prime(i)) = prime(i+1). A379237

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 157", based on the 5-celled von Neumann neighborhood. A270332

a(n) = n·prime(n). A33286

a(n) = a(n-1) + a(floor(n/2)), a(1) = 1. A33485

Number of planted trees where non-root, non-leaf nodes an even distance from root are of degree 2. A7562

Least k such that ∑_i=1..k (prime(i) + prime(i+2) - 2·prime(i+1)) = 2n + 1. A73051

a(n) = (2·n-1)*(n² -n +2)/2. A63488

Numbers k such that the k-th maximal run of composite numbers has length different from all prior maximal runs. Sorted positions of first appearances in A176246 (or A046933 shifted). A373400

Divisors of 99999999. A27890

Pseudoprimes to base 10. A5939