Properties of the Number -128431

One Hundred Twenty-Eight Thousand Four Hundred Thirty-One

Basics

Value: -128432 → -128431 → -128430

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 128431

Divisors: 1, 128431

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111010110101111

Octal: -372657

Duodecimal: -623A7

Hexadecimal: -1f5af

Square: 16494521761

Square Root: 358.37271101466416

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

Triangle read by rows: cube of the lower triangular mean matrix. A27447

Number of integer partitions of n having more than one permutation with all equal run-lengths. A383090

Triangle of numerators of the cube of a certain lower triangular matrix. A119935

Larger of 3 consecutive prime numbers such that p1·p2·p3 + d1 + d2 - 1 = average of twin prime pairs, d1 (δ) = p2 - p1, d2 (δ) = p3 - p2. A153405

The number of vertices formed by straight line segments mutually connecting all vertices of a semicircular polygon defined in A333642. A330913

Number of 8k+1 primes (A007519) in range ]2ⁿ,2ⁿ⁺¹]. A95009

Number of (n+2)X(3+2) 0..3 arrays with every 3X3 subblock row and column sum nonprime and every diagonal and antidiagonal sum prime. A251840

Third column of A027447. A27461