Properties of the Number -154

One Hundred Fifty-Four

Basics

Value: -155 → -154 → -153

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 × 7 × 11

Divisors: 1, 2, 7, 11, 14, 22, 77, 154

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011010

Octal: -232

Duodecimal: -10A

Hexadecimal: -9a

Square: 23716

Square Root: 12.409673645990857

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

Generalized Stirling number triangle of first kind read by rows: T(n, k) = [x^k] ∏_m=1..n (x - m - r), with r = 1. A49444

Coefficients of the 3rd-order mock θ function f(q). A25

Riordan array (1,c(-x)), where c(x) = g.f. of Catalan numbers. A99039

Triangle of generalized Stirling numbers of the first kind read by rows: T(n, k) = (-1)^n+k*∑_m=0..n Stirling1(n, m) * binomial(m, k), where Stirling1 is A048994. A94645

a(n) = (2ⁿ/n!)*∏_k=0..n-1 (4·k - 1). A4984

Expansion of k(q) = r(q) * r(q²)² in powers of q where r() is the Rogers-Ramanujan continued fraction. A112274

Expansion of χ(-q) / χ(-q⁵) in powers of q where χ() is a Ramanujan θ function. A133563

Expansion of (1 - 2·x³ - x⁴ - 2·x⁵ - x⁶ - x⁷ - x⁸ + 2·x⁹)/(1 + x - x³ - x⁴ - x⁵ - x⁶ - x⁷ + x⁹ + x¹⁰). A143335

Dirichlet convolution of A064664 (the inverse permutation of EKG-permutation, A064413) with the Dirichlet inverse of A064413. A349614

Coefficient of q²ⁿ in the series expansion of Ramanujan's mock θ function f(q). A39