Properties of the Number -33930

Thirty-Three Thousand Nine Hundred Thirty

Basics

Value: -33931 → -33930 → -33929

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 13 × 29

Divisors: 1, 2, 3, 5, 6, 9, 10, 13, 15, 18

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1000010010001010

Octal: -102212

Duodecimal: -17776

Hexadecimal: -848a

Square: 1151244900

Square Root: 184.20097719610501

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

Triangular numbers that are the product of two triangular numbers greater than 1. A188630

Triangular numbers that are 5 times another triangular number. A77261

Triangular numbers which are products of triangular numbers larger than 1. A68143

Values of the difference d for 6 primes in arithmetic progression with the minimal start sequence {7 + j·d}, j = 0 to 5. A206040

Coefficient of x⁴ in (1-x-x²)^-n. A6504

Number of ways to place n nonattacking composite pieces rook + rider[1,3] on an n X n chessboard. A189850

Triangle read by rows. A generalization of unsigned Lah numbers, called L[3,1]. A290596

Triangular numbers that are the product of a triangular number and a prime number. A253651

Triangular numbers which are the sum of two squares. A73613

Positive numbers m such that m² - 1 divides 4^m - 1. A271842