Properties of the Number 54540

Fifty-Four Thousand Five Hundred Forty

Basics

Value: 54539 → 54540 → 54541

Parity: even

Prime: No

Previous Prime: 54539

Next Prime: 54541

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ³ × 5 × 101

Divisors: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101010100001100

Octal: 152414

Duodecimal: 27690

Hexadecimal: d50c

Square: 2974611600

Square Root: 233.53800547234277

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 integer compositions of n with all distinct run-sums. A353850

Numbers n such that n = 12·reversal(n). A101705

Expansion of e.g.f. exp(∑_k>=1 φ(k)⁴ * x^k/k), where φ is the Euler totient function A000010. A377509

Non-palindromic numbers such that either x=q1.Rev[x] or Rev[x]=q2.x, where R[x]=A004086[x] and q1 or q2 are integers not divisible by 10. A71687

Numbers n such that prime(n) + n is a prime power (A246547). A109314

Expansion of e.g.f. (1/x) * Series_Reversion( x*(1 + log(1-x))⁴ ). A377429

Numbers n such that n+prime(n) is the square of a prime. A104911

Numbers whose carryless sum of divisors is zero. A323414

Exponential (2,4)-perfect numbers: numbers m such that esigma(esigma(m)) = 4m, where esigma(m) is the sum of exponential divisors of m (A051377). A328133

Numbers n such that φ(n)=d₁!!*d₂!!*...*d_k!! where d₁ d₂ ... d_k is the decimal expansion of n. A139408