Properties of the Number -16403

Sixteen Thousand Four Hundred Three

Basics

Value: -16404 → -16403 → -16402

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 47 × 349

Divisors: 1, 47, 349, 16403

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100000000010011

Octal: -40023

Duodecimal: -95AB

Hexadecimal: -4013

Square: 269058409

Square Root: 128.07419724519065

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

Composite and every divisor (except 1) contains the digit 4. A62670

Dispersion of (3·n-1), read by antidiagonals. A191450

Square array A by downward antidiagonals: A(n,k) = (3 + 3ⁿ*(2·floor(3·k/2) - 1))/6, n,k >= 1; read as A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), ... A254051

Permutation of natural numbers: a(n) = A048673(A122111(n)). A243506

a(n) = (5·3^n-1+1)/2. A57198

Numbers n such that φ(n)=2*φ(n-1). A171271

a(1) = 1, then A007051 ((3ⁿ)+1)/2 interleaved with A057198 (5·3^n-1+1)/2. A246360

a(n) = (5·9ⁿ + 1)/2. A135423

Numbers n such that the digits of σ(n) are exactly the same (albeit in different order) as the digits of φ(n), in base 10. A175795

Square array A(row,col) = A000265(A254051(row,col)). A254101