Properties of the Number -2751

Seven Hundred Fifty-One

Basics

Value: -2752 → -2751 → -2750

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 131

Divisors: 1, 3, 7, 21, 131, 393, 917, 2751

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: -101010111111

Octal: -5277

Duodecimal: -1713

Hexadecimal: -abf

Square: 7568001

Square Root: 52.44997616777342

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

Euler transform of negative integers. A73592

Expansion of (∏_j>=1 (1-(-x)^j) - 1)⁸ in powers of x. A1486

a(n) is the smallest error in trying to solve n⁴ = x⁴ + y⁴. That is, for each n from 2 on, find positive integers·and y, x <= y < n such that |n⁴ - x⁴ - y⁴| is minimal and let a(n) = n⁴ - x⁴ - y⁴. A308834

Expansion of exp(tan(x)/exp(x)). A9255

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

Number of compositions (ordered partitions) of n into distinct parts. A32020

Square array, read by antidiagonals, where row n equals the crystal ball sequence for the A_n lattice. A108625

Generalized 14-gonal numbers: m*(6·m-5), m = 0,+1,-1,+2,-2,+3,-3,... A195818

a(n) = (3·n² - n - 2)/2. A115067

Generalized 15-gonal (or pentadecagonal) numbers: n*(13·n - 11)/2, n = 0,+1,-1,+2,-2,+3,-3, ... A277082