Properties of the Number -400001

Four Hundred Thousand One

Basics

Value: -400002 → -400001 → -400000

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 5

Digital Root: 5

Palindrome: No

Factorization: 7 × 57143

Divisors: 1, 7, 57143, 400001

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100001101010000001

Octal: -1415201

Duodecimal: -173595

Hexadecimal: -61a81

Square: 160000800001

Square Root: 632.4563226025969

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

G.f. A(x) satisfies: A(x) = 1/(1 + x·A(x) + x²*A(x)/(1 + x³*A(x) + x⁴*A(x)/(1 + x⁵*A(x) + x⁶*A(x)/(1 + ...)))), a continued fraction. A301410

Automorphic numbers: numbers k such that k⁶ ends with k. Also m-morphic numbers for all m not congruent to 26 (mod 50) but congruent to 6 (mod 10). A68408

a(n) = 4·10ⁿ+1. A199684

a(1) = 1; for n > 1: a(n) = smallest odd number greater than a(n-1) which does not use any digit used by a(n-1). A229364

Number x = concat(MSD(x),b) such that MSD(x)*b = d(x), where MSD(x) is the Most Significant Digit of·and d(x) is the number of divisors of x. A291618