Properties of the Number -33721

Thirty-Three Thousand Seven Hundred Twenty-One

Basics

Value: -33722 → -33721 → -33720

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 33721

Divisors: 1, 33721

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -1000001110111001

Octal: -101671

Duodecimal: -17621

Hexadecimal: -83b9

Square: 1137105841

Square Root: 183.6327857437228

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

Primes of the form 2·n² + 54·n + 25. A217497

A Collatz-Fibonacci mixture: a(1) = 1, a(2) = 2, a(n+2) = a(n+1)/2+a(n)/2 if a(n+1) and a(n) have the same parity, a(n+2) = a(n+1)+a(n) otherwise. A69202

Primes whose base-7 representation also is the base-3 representation of a prime. A235470

Primes of the form 2·k*prime(k) + 1. A62403

a(n) = a(n-1) + 2·a(n-2) - 2·a(n-3) + a(n-5). A116157

Numbers k such that (17·10^k + 67)/3 is prime. A286395

a(n) = s(n+3)/5, where s is A024729. A24730