Properties of the Number -540225

Five Hundred Forty Thousand Two Hundred Twenty-Five

Basics

Value: -540226 → -540225 → -540224

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 ² × 7 ⁴

Divisors: 1, 3, 5, 7, 9, 15, 21, 25, 35, 45

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10000011111001000001

Octal: -2037101

Duodecimal: -220769

Hexadecimal: -83e41

Square: 291843050625

Square Root: 735

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

Expansion of e.g.f. log(1+x)/cos(tanh(x)). A9428

Odd abundant numbers whose abundance is odd. A156942

Solutions to mod(σ(x), 6) = 5. A74384

Odd abundant numbers k for which σ(k) == 3 (mod 4). A325311

Numbers k having exactly one divisor d such that in binary representation d and k/d have the same number of 1's as k. A80026

Coefficients of power series A(x) consist entirely of squares, where A(x) = A083352(x)² + A083352(x) - 1. A83353

Records in A160256. A151545

Odd numbers k such that σ(k) > 2·k and A003415(σ(k)) < k, where A003415 is the arithmetic derivative, and σ is the sum of divisors function. A347890

Expansion of e.g.f. theta₃^7/2. A15667

Squares containing 2k digits in which the sum of the first k digits = that of the rest. A68897