Properties of the Number -1451

Four Hundred Fifty-One

Basics

Value: -1452 → -1451 → -1450

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 1451

Divisors: 1, 1451

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10110101011

Octal: -2653

Duodecimal: -A0B

Hexadecimal: -5ab

Square: 2105401

Square Root: 38.09199390948182

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

a(n) = 2ⁿ⁺¹*cos(n·arctan(sqrt(15))). A272931

a(0) = 1; a(n) = ∑_{k=0..floor((n-1)/2)} (-4)^k * a(k) * a(n-2·k-1). A352011

Matrix inverse of triangle A055898. A55905

a(n) = A174817(n) - Mnr; where Mnr = A001228(26) = 808017424794512875886459904961710757005754368000000000, also called the Monster number, cf. A003131. A174818

Column 0 of triangle A055905. A55906

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 129", based on the 5-celled von Neumann neighborhood. A270220

a(n) = -n² + 21·n - 1. A332884

L.g.f.: log(∑_k>=0 k! * x^{k*(k + 1}/2) / ∏_j=1..k (1 - x^j)). A331337

Lesser of twin primes. A1359

Sophie Germain primes p: 2p+1 is also prime. A5384