Properties of the Number -133387

One Hundred Thirty-Three Thousand Three Hundred Eighty-Seven

Basics

Value: -133388 → -133387 → -133386

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 133387

Divisors: 1, 133387

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100000100100001011

Octal: -404413

Duodecimal: -65237

Hexadecimal: -2090b

Square: 17792091769

Square Root: 365.22185038685734

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

Largest squarefree number k such that Q(sqrt(-k)) has class number n. A38552

Numbers n such that the sum of the inverse of the exponents in the binary expansion of 2n is an integer. A272035

Primes of form prime(1) + ... + prime(k) + 1. A53845

Largest prime p==3 (mod 8) such that Q(sqrt(-p)) has class number 2n+1. A2149

Primes p such that the p-1 digits of the binary expansion of k/p (for k=1,2,3,...,p-1) fit into the k-th row of a magic square grid of order p-1. A96339

Largest number k such that C(-k) is the cyclic group of order n, where C(D) is the class group of the quadratic field with discriminant D; or 0 if no such k exists. A357600