Properties of the Number -255987

Two Hundred Fifty-Five Thousand Nine Hundred Eighty-Seven

Basics

Value: -255988 → -255987 → -255986

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 19 × 499

Divisors: 1, 3, 9, 19, 27, 57, 171, 499, 513, 1497

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7989 Try Today's Challenge

Representations

Binary: -111110011111110011

Octal: -763763

Duodecimal: -104183

Hexadecimal: -3e7f3

Square: 65529344169

Square Root: 505.9515787108486

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

Numbers, when written in binary, that are a proper substring of the concatenation (with repetition) in increasing order of their prime factors, when written in binary. A378894

Half the number of 0..n arrays of length 4 with second differences nonzero. A212783

Composite numbers that are equal to the concatenation of the primes and exponents in their prime factorizations in some bases. A384537

Numbers in A384537 that are not prime powers: composite numbers, not being prime powers, that are equal to the concatenation of the primes and exponents in their prime factorizations in some bases. A384540

Recamán's Fibonacci variation : a(1)=a(2)=1 then a(n) = a(n-1)+a(n-2)-F(n) if that number is >0 and not already in the sequence; a(n) = a(n-1)+a(n-2)+F(n) otherwise where F(n) denotes the n-th Fibonacci number. A91484