Properties of the Number 30040

Thirty Thousand Forty

Basics

Value: 30039 → 30040 → 30041

Parity: even

Prime: No

Previous Prime: 30029

Next Prime: 30047

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 5 × 751

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 751, 1502

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111010101011000

Octal: 72530

Duodecimal: 15474

Hexadecimal: 7558

Square: 902401600

Square Root: 173.32051234634636

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

a(n) = 2nd elementary symmetric function of the first n+1 odd positive integers. A24196

Expansion of (1+2·x+3·x²)/((1-x)³*(1-x²)). A55232

Maximum detour index of any bipartite graph on n nodes. A296819

Numbers k such that (A276086(k)/s)^s < k^s-1, where A276086 is the primorial base exp-function, and s = bigomega(k). A370127

Boustrophedon transform (first version) of Fibonacci numbers 0,1,1,2,3,5,... A687

a(n) = 40*(200·n - 49). A157652

a(n) = ∑_{k=0..floor(n/3)} 2^n-3·k * binomial(2·n-4·k+1,2·k). A387692

Expansion of (1+x-x²)/((1-x)*(1-3·x²-x³)). A217733

Irregular triangular array T(n,k) of consecutive composites. A226085

Numbers k such that Bernoulli number B_k has denominator 13530. A295587