Properties of the Number -130021

One Hundred Thirty Thousand Twenty-One

Basics

Value: -130022 → -130021 → -130020

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 130021

Divisors: 1, 130021

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111101111100101

Octal: -375745

Duodecimal: -632B1

Hexadecimal: -1fbe5

Square: 16905460441

Square Root: 360.58424813072463

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

Indices of prime Fibonacci numbers. A1605

Prime indices of prime Fibonacci numbers. A83668

Start with 100013 and repeatedly reverse the digits and add 2 to get the next term. A120216

Prime-indexed primes p such that Fibonacci(p) is prime. A277284

Number of 3-regular cubic partitions of n. A335602

Primes p such that p, p + 1, p + 2 and p + 3 have 2, 4, 6 and 8 divisors respectively. A340871

Numbers k such that d(k) < d(k+1) < d(k+2) < d(k+3) < d(k+4), where d(n) is the number of divisors of n. A364717

Start with 100016 and repeatedly reverse the digits and add 5 to get the next term. A119902

Numbers n such that the n-th Fibonacci number is prime, but cannot be written in the form a² + 7·b². A216536

Numbers n such that the n-th Fibonacci number is prime, but cannot be written in the form a² + 3·b². A216553