Properties of the Number -393121

Three Hundred Ninety-Three Thousand One Hundred Twenty-One

Basics

Value: -393122 → -393121 → -393120

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 393121

Divisors: 1, 393121

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1011111111110100001

Octal: -1377641

Duodecimal: -16B601

Hexadecimal: -5ffa1

Square: 154544120641

Square Root: 626.9936203822173

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

Fibonacci numbers written backwards. A4091

a(n)*a(n-7) = a(n-1)a(n-6)+a(n-3)+a(n-4) with initial terms a(1)=...=a(7)=1. A133846

Reversals of Fibonacci numbers (sorted). A4170

Iccanobif (or iccanobiF) primes: primes which are Fibonacci numbers when reversed. A36797

Expansion of e.g.f. exp(x * (1 + x⁴)²). A373708

Indices of tetrahedral numbers that are Fermat pseudoprimes to base 2. A321866

a(n) is the least prime p such that there are exactly n primes of the form p+d where d is a divisor of p-1 or of p+1. A340160

Number of nondecreasing integer sequences of length 37 with sum zero and sum of absolute values 2n. A158171