Properties of the Number -1337

Three Hundred Thirty-Seven

Basics

Value: -1338 → -1337 → -1336

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 7 × 191

Divisors: 1, 7, 191, 1337

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -10100111001

Octal: -2471

Duodecimal: -935

Hexadecimal: -539

Square: 1787569

Square Root: 36.565010597564445

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(0) = -1 and a(n) = (-1)ⁿ⁺¹*(3·n² - n + 4)/2 for n >= 1. A173247

a(n) = 7 + 12·n - 6·n². A157517

List of codewords in binary lexicode with Hamming distance 4 written as decimal numbers. A75928

Multiples of 7 containing a 7 in their decimal representation. A121027

Convolution of primes with themselves. A14342

Numbers k whose largest divisor <= sqrt(k) equals 7. A162527

Numbers where 3 outnumbers any other digit. A292453

Dispersion of (3·n-1), read by antidiagonals. A191450

Triangle, read by rows, where the n-th row lists the (2n+1) coefficients of (1+x+2x²)ⁿ for n >= 0. A84600

Square array A by downward antidiagonals: A(n,k) = (3 + 3ⁿ*(2·floor(3·k/2) - 1))/6, n,k >= 1; read as A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), ... A254051