Properties of the Number -148

One Hundred Forty-Eight

Basics

Value: -149 → -148 → -147

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 37

Divisors: 1, 2, 4, 37, 74, 148

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: -10010100

Octal: -224

Duodecimal: -104

Hexadecimal: -94

Square: 21904

Square Root: 12.165525060596439

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 in pairs (j,k), with j <> k +- 1, such that the sum of their cubes is equal to a centered cube number. A352136

Expansion of ψ(-q³) / f(q) where ψ(), f() are Ramanujan θ functions. A139135

Expansion of (1-x-x^N)/((1-x)(1-x²)(1-x³)...(1-x^N)) for N = 5. A60024

Expansion of ∏_k>=1 theta₄(x^k), where theta₄() is the Jacobi θ function. A320908

G.f.: A(x,q) = sqrt( Q(x,q) / Q(x,-q) ), where Q(x,q) = ∑_n=-oo..+oo (x - qⁿ)ⁿ. A292929

The y-coordinates of the vertices of the Babylonian Wurm. A342623

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

Discriminants of quadratic number fields Q(sqrt -n) for n squarefree. A33197

Triangle read by rows giving the coefficients of general sum formulas of n-th Lucas numbers (A000204). The k-th row (k>=1) contains T(i,k) for i=1 to 2·k-1, where T(i,k) satisfies L(n) = ∑_k=1..n ∑_i=1..2·k-1 T(i,k) * C(n-k,i-1) * n^n-k / (n-1)!. A101033

Matrix inverse square-root of triangle A105615. A105620