Properties of the Number -405199

Four Hundred Five Thousand One Hundred Ninety-Nine

Basics

Value: -405200 → -405199 → -405198

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 405199

Divisors: 1, 405199

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100010111011001111

Octal: -1427317

Duodecimal: -1765A7

Hexadecimal: -62ecf

Square: 164186229601

Square Root: 636.5524330328178

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

There appear to be at least n primes in the range (x-sqrt(x), x] for all x >= a(n). A189026

Numerators of the partial sums of the reciprocals of the sum of unitary divisors function (A034448). A379513

a(1)=5; thereafter a(2n) = nextprime(a(2n-1)²), a(2n+1) = nextprime(floor(2·a(2n)/(a(2n-1) + 1))) where nextprime(.) is A007918(.). A181616