Properties of the Number -7400

Four Hundred

Basics

Value: -7401 → -7400 → -7399

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 5 ² × 37

Divisors: 1, 2, 4, 5, 8, 10, 20, 25, 37, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1110011101000

Octal: -16350

Duodecimal: -4348

Hexadecimal: -1ce8

Square: 54760000

Square Root: 86.02325267042627

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

McKay-Thompson series of class 18C for the Monster group with a(0) = -3. A123676

McKay-Thompson series of class 18C for the Monster group with a(0) = -2. A215412

McKay-Thompson series of class 18C for the Monster group with a(0) = 1. A215413

McKay-Thompson series of class 18C for the Monster group. A58533

Expansion of χ(-q)⁵ / χ(-q⁵) in powers of q where χ() is a Ramanujan θ function. A138521

E.g.f. A(x,k) satisfies: sn(A(x,k), k) = k·sn(x,k), where sn(,) and cn(,) are Jacobi Elliptic functions. A291527

a(n) = n! * [xⁿ] log(1 + exp(x)*(x + (n/2 - 1)*x²)). A320255

Numbers n such that the decimal expansions of both n and n² have 0 as smallest digit and 7 as largest digit. A256634

a(n) = n*(n + 1)*(n² - 3·n + 5)/6. A6484

Even octagonal numbers: a(n) = 4·n*(3·n-1). A14642