Properties of the Number -128509

One Hundred Twenty-Eight Thousand Five Hundred Nine

Basics

Value: -128510 → -128509 → -128508

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 128509

Divisors: 1, 128509

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111010111111101

Octal: -372775

Duodecimal: -62451

Hexadecimal: -1f5fd

Square: 16514563081

Square Root: 358.48151974683435

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

Number of Dyck paths of semilength n having exactly 8 (possibly overlapping) occurrences of the consecutive steps UDUUDU (with U=(1,1), D=(1,-1)). A243420

Number of 5k+4 primes (A030433) in range ]2ⁿ,2ⁿ⁺¹]. A95024

Primes p such that 2·p + 31 is a square. A269786