Properties of the Number -3749

Seven Hundred Forty-Nine

Basics

Value: -3750 → -3749 → -3748

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 23 × 163

Divisors: 1, 23, 163, 3749

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111010100101

Octal: -7245

Duodecimal: -2205

Hexadecimal: -ea5

Square: 14055001

Square Root: 61.22907805936653

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

G.f. A(x) satisfies ∑_n=-oo..+oo (xⁿ - A(x))ⁿ = ∑_n>=0 x^n². A370031

a(n) = ∑_{k = 0..n} (-1)^n+k*binomial(n, k)*binomial(n+k, k)*A108625(n-1, n-k). A376458

a(n) = -(n + 1)*(2·n² + n - 12)/6. A58372

Coefficients in expansion of 1/(1 + 2·x - 3·x³). A317499

Numbers k such that 2^k + 9 is prime. A57196

Number of triangular regions in regular n-gon with all diagonals drawn. A62361

a(n+1) = a(n)-th composite number, with a(0) = 1. A6508

MM-numbers of nesting multiset partitions. A326256

Number of triples (i,j,k) with 1 <= i <= j < k <= n and gcd{i,j,k} = 1. A100448

a(n) = 6·n² - 1. A140811