Properties of the Number -178929

One Hundred Seventy-Eight Thousand Nine Hundred Twenty-Nine

Basics

Value: -178930 → -178929 → -178928

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 47 ²

Divisors: 1, 3, 9, 27, 47, 81, 141, 423, 1269, 2209

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -101011101011110001

Octal: -535361

Duodecimal: -87669

Hexadecimal: -2baf1

Square: 32015587041

Square Root: 423

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

a(n) = (11·n + 5)². A17450

a(n) = (12·n + 3)². A17558

The periodic point counting sequence for the toral automorphism given by the polynomial of (conjectural) smallest Mahler measure. The map is x -> Ax mod 1 for·in [0,1)¹⁰, where A is the companion matrix for the polynomial x¹⁰+x⁹-x⁷-x⁶-x⁵-x⁴-x³+x+1. A59928

Powers k^m, m > 1, odd k that are neither squarefree nor squareful. A392423

Squares whose arithmetic mean of digits is 6 (i.e., the sum of digits is 6 times the number of digits). A316486

Squares n² that become prime after omitting all ones in their decimal expansion. A175983

E.g.f. A(x) satisfies A(x) = A(x³)^1/3 * exp(3·x) with A(0)=1. A374347

Square numbers whose iterative sums of digits are squares. A384296