Properties of the Number -42750

Forty-Two Thousand Seven Hundred Fifty

Basics

Value: -42751 → -42750 → -42749

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 ³ × 19

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 19

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -1010011011111110

Octal: -123376

Duodecimal: -208A6

Hexadecimal: -a6fe

Square: 1827562500

Square Root: 206.76073128135332

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

Expansion of 1/sqrt(1 - 4·x/(1+x)⁵). A361791

Numbers which can be expressed as the product of a number and its reversal in at least two different ways. A66531

T(n,k)=Number of nXnXn triangular 0..k arrays with some element plus some adjacent element totalling k exactly once. A270256

Expansion of η(q⁴)² / (η(q²) * η(q)⁶) in powers of q. A134416

Numbers k such that k and the least number that is larger than k and has the same prime signature as k also has the same set of distinct prime divisors as k. A340302

Positions of zeros in A393422. A393461

a(n) = 225*(n-1)*(n-2)/2. A27470

Number of 3X3X3 triangular 0..n arrays with some element plus some adjacent element totalling n exactly once. A270258

Number of excursions of length n with Motzkin-steps avoiding the consecutive steps UH, HD and DU. A329698

Number of nXnXn triangular 0..6 arrays with some element plus some adjacent element totalling 6 exactly once. A270255